PhysCount: Do MLLMs Count Visual Appearances or Physical Entities?PhysCount is a benchmark of 546 real-world images and 4,595 human-written questions in 651 target-specific groups. It tests whether multimodal LLMs can separate visible appearances (direct view, reflections, glass) from the physical entities behind them. Across 40 MLLMs, counting appearances is much easier than linking them to entities, and the best model answers every question correctly in only 13.36% of groups.
arxiv.orgpaperAdded 31 Oct 2026, published 29 Oct 2026๐ง AI
Glance: The Generator Is Its Own RerankerGlance is a RAG method in which the generator also reranks. It adds a lightweight decision adapter and pointer head that score candidate passages from one shared prefill, so a single resident 9B backbone does generation and reranking. After 39 minutes of MS MARCO fine-tuning it reaches nDCG@10 of 0.741 on SciFact and 0.345 on NFCorpus, against 0.721 and 0.326 for bge-reranker-v2-m3. On 300 HotpotQA questions it improves answer F1 by 0.045 over cross-encoder-selected context. Evaluation covers two retrieval datasets, one QA dataset and one backbone family.
arxiv.orgpaperAdded 31 Oct 2026, published 29 Oct 2026๐ง AI- High Precision Noise Cleaning for CKKS with Application to Asynchronous Threshold CKKS
High Precision Noise Cleaning for CKKS is an IACR ePrint preprint (2026/2675) by Zhihao Li, Cheng Hong and Tao Wei. It composes lower-degree Hermite polynomials to reach output noise bounds such as 2^-300 for noise flooding, and uses this to build an asynchronous threshold CKKS scheme with strong simulation security in the random oracle model. In OpenFHE, binary-message cleaning falls from 9.63 s to 1.54 s.
eprint.iacr.orgpaperAdded 31 Oct 2026, published 29 Oct 2026๐ก๏ธ Security
Appreciation Teaches Unauthorized Execution: Self-Evolution Degrades the Robustness of Personal Agents to Indirect Prompt InjectionPaper studying whether self-evolution weakens personal agents' robustness to indirect prompt injection (IPI). A two-phase method has the user ask the agent to follow tasks in external content, then tests with a third-party injected task the user did not authorize. Against the non-evolving base agent, attack success rose 14.0 to 48.8 points under skill evolution and 3.0 to 39.3 points under reinforcement learning. Code is released.
arxiv.orgpaperAdded 31 Oct 2026, published 29 Oct 2026๐ก๏ธ Security
Gold vs.~Translation: Are We Measuring Language, Knowledge, or Locality in Translated Benchmarks?Gold vs. Translation is an October 2026 arXiv study of whether DeepL-translated MMLU measures the same thing as native benchmarks. It compares seven pairings against six native benchmarks in five Nordic and Baltic languages, using 29 models. Translated MMLU adds predictive value for curriculum-overlap benchmarks such as Skolprov (ฮRยฒ=.128) but not for Sweden-specific SwedishFacts (p=.242).
arxiv.orgpaperAdded 30 Oct 2026, published 28 Oct 2026๐ง AI
Deogen: Automatic Benchmark Generation for Reasoning over PoliciesDeoGen is an automatic, parametrizable benchmark generator for deontic reasoning, where a model applies policy rules to facts to reach a verdict. It autoformalizes rules into first-order logic, builds decision trees, and turns each tree path into a benchmark entry. Frontier models give the correct verdict 89-92% of the time, but only 22-40% on entries lacking enough information, even when told to abstain.
arxiv.orgpaperAdded 30 Oct 2026, published 28 Oct 2026๐ง AI
Quantize by Doing: Task-Guided Mixed-Precision Quantization of Vision-Language-Action ModelsQbD-VLA is a mixed-precision post-training quantization method for vision-language-action models. It uses task success from short closed-loop evaluations to assign weight and activation bit widths, accounting for interactions between components. On four VLA models across all four LIBERO suites it holds task performance at about 4-bit weights and under 6-bit activations. The gain on SIMPLER is small. On a Franka Research 3 arm, X-VLA shows no detected loss, but ฯ0.5 fails.
arxiv.orgpaperAdded 30 Oct 2026, published 28 Oct 2026๐ง AI
When LLM Architectures Meet Smart Contract Vulnerability Detection: a Replication StudyThis paper replicates Chen et al.'s study of LLM-based smart contract vulnerability detection, first on GPT-4 and then on Mixture-of-Experts, RNN-like and State Space Models. The exact replication confirms the high-recall, low-precision pattern on GPT-4. The differentiated replication finds the pattern does not transfer uniformly: GPT-4 and Gemma-3 behave alike despite a roughly 100x parameter gap, while two MoE models diverge.
arxiv.orgpaperAdded 30 Oct 2026, published 28 Oct 2026๐ง AI
When LLM Architectures Meet Smart Contract Vulnerability Detection: a Replication StudyThis arXiv paper (October 2026) replicates Chen et al.'s study of LLM-based smart contract vulnerability detection. It confirms the high-recall, low-precision pattern on GPT-4, then tests Mixture-of-Experts and RNN-like models plus a preliminary State Space Model run. Gemma-3 matches GPT-4's profile despite far fewer parameters, while two Mixture-of-Experts models diverge, so architecture family alone does not predict detection behavior.
arxiv.orgpaperAdded 30 Oct 2026, published 28 Oct 2026๐ก๏ธ Security
Think Before You Act: Decision Gate for LLM AgentsJevAct is a runtime verification framework that intercepts selected LLM agent actions before execution and returns feedback for bounded revision. It compiles domain policies into executable state checks and structured questions scored by a prefill-only decision model, giving probability-based judgments without generation. Tested on eleven agents with tau^2-bench Airline and Telecom and BFCL, it gained consistently on Telecom and BFCL and was mixed on Airline.
arxiv.orgpaperAdded 30 Oct 2026, published 28 Oct 2026๐ง AI
From Leniency to Suspicion: How an Open Post-Training Recipe Changes Whom LLM Fact-Checkers BelieveThis paper measures job-based doubt in LLM fact-checkers: judging a claim false more often when the poster has a lower-status job. It compares base and post-trained checkpoints of six model families on fact-checked claims with randomised poster profiles. Only the open Tรผlu-3 recipe (OLMo-2 32B, Tรผlu-3 70B) creates the effect, under one percentage point but reliable. In OLMo-2 32B the flip comes from one residual-stream direction and appears at supervised fine-tuning, confirmed on 400 new claims. None of seven commercial models doubts lower-status posters more.
arxiv.orgpaperAdded 30 Oct 2026, published 28 Oct 2026๐ง AI
Benchmarking decision models against generative large language models on medical multiple-choice questionsThis preprint benchmarks 13 decision models against 15 generative LLM configurations, including different reasoning settings, on 1,273 text-only four-option MedQA questions. Accuracy ran 67.71% to 89.08% for decision models and 78.32% to 96.86% for generative configurations. Decision models were cheaper and faster, but answers with probability of at least 0.90 still had error rates of 1.71% to 12.77%, and probability repeatability varied across three runs.
arxiv.orgpaperAdded 30 Oct 2026, published 28 Oct 2026๐ง AI
TCC-RAG: Temporal Causal Chain-Guided RAG for Temporal Knowledge Graph Question AnsweringTCC-RAG is a retrieval-augmented generation method for temporal knowledge graph question answering (TKGQA). It turns the temporal knowledge graph into a multi-view causal cue graph, builds a query-specific temporal causal chain to guide retrieval, and applies a causal evidence filter to the results. The authors report gains of 10.72% and 8.40% on two TKGQA benchmarks and 62.97% on multi-step temporal reasoning.
arxiv.orgpaperAdded 30 Oct 2026, published 28 Oct 2026๐ง AI
Metacognitive Decoding: Efficient Inference for Diffusion Language AgentsMetacognitive Decoding is a lightweight plug-in controller for diffusion language model backbones. It learns when to finalize tokens and how far generation should extend, and is trained on agent trajectories to balance correctness against generation cost. Across five benchmarks it cuts inference FLOPs by 20.6% on average versus the most efficient baseline, with competitive task accuracy. The abstract names no specific benchmarks or backbones.
arxiv.orgpaperAdded 28 Oct 2026, published 27 Oct 2026๐ง AI
Interpretable Meta-Policies for Neural Decision MakingNEXUS is a hierarchical reinforcement learning framework that pairs neural skills with symbolic meta-policies, so transparent reasoning sits at the level of high-level skills rather than atomic actions. It uses object-centric observations and LLM interaction to design reward functions and meta-policies. Agents learn disentangled skills, align better with goals in the game manual, resist reward hacking more, and cope better with game simplifications than deep RL. The paper also compares neural, symbolic and neuro-symbolic meta-policy architectures.
arxiv.orgpaperAdded 28 Oct 2026, published 27 Oct 2026๐ง AI
Bayes-Adaptive MDPs for Rollout Allocation to Enhance GRPO TrainingAdaRoll-GRPO is a method that allocates GRPO rollout budgets per question by difficulty instead of uniformly. It frames allocation as a sequential decision problem and learns an allocation policy with a Bayes-adaptive MDP, computed offline so training adds no online optimization cost. Experiments on several reasoning datasets and LLM architectures show gains over standard GRPO at the same total rollout budget.
arxiv.orgpaperAdded 28 Oct 2026, published 27 Oct 2026๐ง AI
OpenGray: a benchmark for evaluating the decisions of radiotherapy planning agentsOpenGray is a benchmark that adds tasks with known correct decisions to the OpenKBP-Opt head-and-neck dataset, including two overlap contradictions with provably incompatible dose goals and a feasible control. Four planning systems, from a rule-based script to a full LLM agent, were tested on 30 patients with Terra and Ministral 3 8B. Decision accuracy reached 95.4% and 92.1%, yet only 50% and 25% of overlap contradictions were escalated. SAGE logs of 39 radiosurgery runs showed an agent that lacked an action for stopping.
arxiv.orgpaperAdded 28 Oct 2026, published 27 Oct 2026๐ง AI
Exploring the Limits of the Delta Learning Hypothesis: Single-Pair Generator Biases in Direct Preference OptimizationThis paper tests the delta-learning hypothesis for Direct Preference Optimization (DPO), where the larger model's response in a single model pair is treated as preferred. It shows, in theory and experiments, that fixed pairs add generator-specific biases that predict the preference label regardless of quality. DPO on single-pair data underperforms multi-model data, consistent with reward hacking, and adding more generators partly fixes it without an external judge.
arxiv.orgpaperAdded 28 Oct 2026, published 27 Oct 2026๐ง AI
When Algebraic Structure Meets Too Many Hints"When Algebraic Structure Meets Too Many Hints" is an ePrint paper (2026/2654) arguing that DDGR hint classes and too-many-hints thresholds are not standalone side-channel security metrics. In synthetic Kyber-512 experiments, NTT-domain residues recover the full secret with about half the hints the uniform mod-q bound predicts. Finite-precision FFT samples need 25% to 55% of the budget for uniform perfect hints. No new attack optimizations are proposed.
eprint.iacr.orgpaperPublished and added 27 Oct 2026๐ก๏ธ Security
Decision Attacks on Known-Covariance Ring-LWE via Public Gram DeterminantsAnis Bkakria's ePrint 2026/2638 gives polynomial-time decision attacks on Known-Covariance Ring-LWE (KCov-RLWE), the assumption Micciancio and Suhl introduced for simulation-secure threshold encryption. The public sample and covariance hint form a bordered Gram matrix whose determinant leaks a residual that differs between real and uniform samples. The attacks cover broad prime-modulus families at ring rank one and transfer to composite moduli with an odd prime divisor. Power-of-two moduli are not covered, and the paper does not break the full threshold-encryption scheme.
eprint.iacr.orgpaperAdded 26 Oct 2026, published 25 Oct 2026๐ก๏ธ Security
Maximum-Likelihood Decoding of Gabidulin Codes Is NP-Hard Even in Dimension OnePhilippe Gaborit proves that maximum-likelihood decoding of Gabidulin codes is NP-hard even for dimension one: deciding rank distance at most n-2 from the code {ฮปg} is NP-complete. The reduction is deterministic, so Rank Syndrome Decoding and Rank Minimum Distance for F_{q^m}-linear codes are NP-complete under deterministic reductions, where the earlier reduction was randomized. It goes through a new pivot problem, Twisted Square Membership.
eprint.iacr.orgpaperAdded 26 Oct 2026, published 25 Oct 2026๐ก๏ธ Security
Explaining Navigation Decisions: Stage-Aware Visual Attribution for Vision-Language NavigationA stage-aware visual attribution framework for Vision-Language Navigation (VLN) that explains a robot's action choices. It identifies "instruction-stage insensitivity", where existing explainers give similar outputs across navigation stages. The method builds action-conditioned temporal instruction-visual attributions, aggregates relevant historical evidence by stage, and applies an instruction-guided spatial filter. It improves attribution quality across several VLN policies and benchmarks, helps diagnose failure cases, and was tested on a Unitree G1 robot.
arxiv.orgpaperAdded 27 Oct 2026, published 25 Oct 2026๐ง AI
The Patient Is Always Right? Evaluating Sycophancy in Medical Diagnosis with Graded Patient BeliefsThis paper evaluates sycophancy in medical diagnosis across nine AI models. Each model is shown clinical evidence plus a patient's belief in a specific but incorrect condition, with the belief's closeness to the evidence varied. Models adopted the belief 23.2% of the time on average, even for fictional conditions, and 43.0% under a Rare Disease Claimer persona. Medical fine-tuning and larger scale reduced susceptibility.
arxiv.orgpaperAdded 27 Oct 2026, published 25 Oct 2026๐ง AI
HerHealthGPT: An Evidence-Grounded Conversational AI System for Women's Reproductive Health Copy titleHerHealthGPT is a conversational AI system for women's reproductive health that combines retrieval-augmented generation, context-aware clarification and source validation in a web interface. Evidence retrieval raises concern-category accuracy from 54.1% to 59.3% over fine-tuning alone on 540 messages from 90 cases. The clarification router reaches 85.6% recall and 86.2% specificity. In a 30-adult study, 83.3% preferred the retrieval-enabled version. The authors say clinical validation is still needed.
arxiv.orgpaperAdded 27 Oct 2026, published 24 Oct 2026๐ง AI
DRILS: Dependency-based Requirement Change Impact Analysis Using LLMsDRILS is an LLM-based agentic framework for requirements change impact analysis. It uses multiple agents to generate candidate impact sets, with an LLM-as-a-judge promoting diversity in selection. It adds RE-RAG, a tuned retrieval technique, and a requirement dependency graph as a knowledge source. On three curated datasets it reaches 87.1% recall, 76.3% precision and 81% F1 at lower cost than baselines. The authors release the datasets.
arxiv.orgpaperAdded 27 Oct 2026, published 24 Oct 2026๐ง AI
Ranking Is Not Deciding: Benchmark Shortcuts and Operating-Point Collapse in Query-Time RAG Poisoning DefensesRanking Is Not Deciding is an October 2026 arXiv paper showing that query-time RAG poisoning filters score near-perfectly because of how the poison set was built. PoisonedRAG's code prepends the target question to each passage. Removing that prefix takes RAGuard from AUROC 0.953 to 0.758 and its miss rate from 0.191 to 0.763. The authors release a script that profiles a poison set.
arxiv.orgpaperAdded 27 Oct 2026, published 24 Oct 2026๐ก๏ธ Security
Build, Don't Play: Self-Improving LLM Research Agents Develop a Hearthstone Battlegrounds AI That Rivals Top PlayersAutoTavern is a self-improving system of specialised LLM research agents with a typed shared memory and verification gates. In 20 days it built TavernGym, a full-content Hearthstone Battlegrounds simulator, and 23 versions of TavernAgent, a PPO-trained player. TavernAgent averaged placement 1.60 with 80% first places over its last 20 live games, beating the top ten players (2.34, 59%). On TavernBench (960 tasks), it answered 91% of play tasks against at most 63% for frontier LLMs.
arxiv.orgpaperAdded 27 Oct 2026, published 24 Oct 2026๐ง AI
Sliding Networks: A Family of Residual Structures Preserving Feature Learning and Feature DiversitySliding Networks is a family of residual network structures with a joint width and depth scaling recipe that keeps both locally maximal feature learning and feature diversity in the residual stream. The key quantity is the ratio N_flat/(N_sharp L) tending to a constant alpha, and Half Copy correlated initialization can relax the shape constraints. Residual-MLP experiments support an SDE limit, but language-model experiments show performance differences under regrouping at fixed parameter count.
arxiv.orgpaperAdded 27 Oct 2026, published 24 Oct 2026๐ง AI
Learning What to Share: Expert Specialization for Time-Series ForecastingPersistent Closed-Form Routing (PCR) is a plug-and-play method for multivariate time-series forecasting. It alternates exact conditional estimation of channel-specific mixture weights with gradient training of low-rank residual experts around a frozen pretrained forecaster. Across eleven datasets and three backbones, PCR-K4 cuts dataset-balanced MSE by 3.86-14.25% and beats competing specialization methods with fewer trainable parameters. The paper also introduces GalaxyTS, a synthetic dataset with exact shared and channel-specific references.
arxiv.orgpaperAdded 27 Oct 2026, published 24 Oct 2026๐ง AI
Task Format as a Factor in Adaptation: A Controlled Comparison of LoRA and Full Fine-Tuning for Prompt-Safety ClassificationThis paper compares LoRA and full fine-tuning for prompt-safety classification using a matched 400M encoder-decoder pair (Ettin) across three task formats, with up to 15 seeds per cell and pre-specified analyses. Full fine-tuning leads LoRA by 2-3 pp at the pre-specified learning rates, and the encoder gap closes when both use the same learning-rate search. Training LoRA to write a reason after its verdict adds 4.0 pp, while a content-free sentence of equal length does not. Trained models beat a prompted 8B in domain but trail it by 8-23 pp on adversarial jailbreaks and over-flag benign prompts (27-66% against 2-3%).
arxiv.orgpaperAdded 27 Oct 2026, published 24 Oct 2026๐ง AI
Unlocking the Specialization Capability of PPG Foundation Models for Wearable Signals through Structured Pruning and Adaptive Fine-TuningSPAFT is a structured prune-then-finetune framework for PPG (photoplethysmography) foundation models used on wearable signals. It finds that pretrained PPG models have inherent sparsity and redundancy, then restricts fine-tuning to a compact parameter subspace chosen by parameter importance and structural redundancy. Across four PPG foundation models, five datasets and ten tasks, it wins 82.8% of regression and 87.5% of classification comparisons.
arxiv.orgpaperAdded 27 Oct 2026, published 24 Oct 2026๐ง AI
TriageRAG: Failure-Aware Self-Training for Adapting Retrieval-Augmented Language Models to Specialized DomainsTriageRAG is a failure-aware self-training method for adapting retrieval-augmented LLMs to specialized domains using only an unlabeled corpus. It probes the student on self-generated questions with and without retrieved context, sorts them into known, solved, context-failure and retrieval-failure, and routes each to a matching training signal. With Qwen3-4B on 11 datasets it beats budget-matched SimRAG by 1.2-6.4 points and recovers closed-book accuracy where retrieval hurts.
arxiv.orgpaperAdded 27 Oct 2026, published 24 Oct 2026๐ง AI
An actively trained neural operator for near-explicit atmospheric chemistryFNO-MoE is a Fourier neural operator with a mixture of experts that predicts the full near-explicit chemical state (Master Chemical Mechanism, thousands of species) over 30 minutes in one call. Expert disagreement selects the most informative box-model simulations, so active sampling beats random or evenly spread sampling at equal cost. Fine-tuning on longer trajectories keeps multi-hour runs stable, and the emulator runs orders of magnitude faster than the numerical solver.
arxiv.orgpaperAdded 27 Oct 2026, published 24 Oct 2026๐ง AI
Enhancing LLM-Based Vulnerability Detection via Representation-Aware Logical EnsembleRALE (Representation-Aware Logical Ensemble) is a method for LLM-based vulnerability detection in C code. The authors train LLMs on raw source code, Abstract Syntax Trees and Control Flow Graphs, and find each representation works best for certain vulnerability classes. Combining the models with explicit logical rules and majority voting raises F1 from at most 73% for a single model to 78%, with gains in accuracy, precision and recall.
arxiv.orgpaperAdded 28 Oct 2026, published 24 Oct 2026๐ง AI
Eat Your Precision: Precision Objective Mitigates Reward Hacking in Rubric-based RLFORK is a reward for rubric-based reinforcement learning that jointly optimizes recall and a new precision objective. Precision requires each unit of a response to be necessary (rubric-driven necessity credits) and factually correct (a grader). Rubric-coverage rewards otherwise produce verbose, less accurate responses. FORK keeps similar coverage with shorter outputs, raising win rate against the base policy from 10.6% to 68.0% on RubricHub-Medical and from 22.1% to 74.1% on HealthBench.
arxiv.orgpaperAdded 27 Oct 2026, published 24 Oct 2026๐ง AI
Small Edits, Shifting Decisions: Benchmarking LLM Accuracy and Reliability on French Input VariantsThis paper builds a controlled French surface-variant benchmark with seven task types and 4,200 original-low-high triplets (12,600 inputs), covering missing apostrophes and diacritics and keyboard typos. Six models from two LLM families lose accuracy and show worse Brier score and NLL as perturbation grows. Keyboard typos hurt most. Calibration temperatures fitted on original inputs transfer to variants, and combining them with input restoration improves reliability further.
arxiv.orgpaperAdded 27 Oct 2026, published 24 Oct 2026๐ง AI
IQuest-Q1: Advancing Foundation Capabilities for Agentic CLI SystemsIQuest-Q1 is an open-source sparse Mixture-of-Experts model with 320B total and 15B activated parameters, built for agentic coding in CLI systems. Pre-training combines Stable SplitNorm, Muon and muP with a two-stage curriculum that raises the coding-data share in stage two. Mid-training extends context, and post-training mixes SFT, domain-specialized RL and MOPD across scaffolds, followed by model merging.
huggingface.copaperAdded 24 Oct 2026๐ง AI
Standing on Open Shoulders: Regional Fine-Tuning of Open-Weight Camera-Trap Models for UK Wildlife with Modest Data and ComputeDeepFaune-UK is a fine-tune of the open DeepFaune camera-trap classifier on 28 UK classes, paired with MegaDetector v6. On 20,212 MammalWeb images it reached 88.8% strict accuracy against 56.5% (DeepFaune v1.5.0) and 59.0% (SpeciesNet). Re-applying the recipe to the DINOv3-based classifier gave 90.6%. Fine-tuning on about 150 crops per class matched full-data out-of-distribution accuracy, and a DINOv2 run took about 22 minutes on under 4 GB of GPU memory.
arxiv.orgpaperAdded 26 Oct 2026, published 23 Oct 2026๐ง AI
Learning with Quantization and Worst Case Lattice ProblemsLearning with Quantization and Worst Case Lattice Problems is an IACR ePrint paper (2026/2613) by Ziwei Hong and Zhongqiu Fang. It proves that search and decision learning with quantization (LWQ) with public dither is as hard as quantum GapSVP and SIVP on arbitrary lattices, using the randomized polar lattice quantizer of Lyu et al. It also shows that a complete reduction for interval uniform error LWE (MAMBA Frost) and hardness at concrete MAMBA parameters are not established.
eprint.iacr.orgpaperAdded 24 Oct 2026, published 23 Oct 2026๐ก๏ธ Security
4DMemory: Benchmarking Long-Horizon Spatiotemporal Memory with Harness-Augmented Agents4DMemory is a benchmark suite for long-horizon spatiotemporal memory: the LongVideo dataset (about 900 hours of video, over 5,000 manually reviewed questions) and 4DMemoryBench. It also presents the 4DMemory Harness, combining four skills, 22+ tool models and a model-specific RAG system. Across 13 models, the harness improved every one by over 50%, and the same models scored over 10% lower than on a previous benchmark.
arxiv.orgpaperAdded 26 Oct 2026, published 23 Oct 2026๐ง AI
MPQ: A Message-Passing View of Post-Training QuantizationMPQ (Message-Passing Quantization) is a post-training quantization method that treats row-wise PTQ as posterior inference over discrete codebooks. It keeps soft posteriors across weight blocks using vector approximate message passing, then refines a hard-decision initialization with exact block coordinate descent. Tested at 2-bit lattice and 3- and 4-bit scalar quantization on Llama, Qwen and Mistral models, it improves perplexity and zero-shot accuracy over GPTQ-style baselines.
arxiv.orgpaperAdded 26 Oct 2026, published 23 Oct 2026๐ง AI
Tampered ML: Evaluating LLM Judgment of Machine Learning ResearchTampered ML is a benchmark of 1,858 item-pairs, each pairing an experiment proposal reconstructed from a published ML paper with a minimally edited version that adds a targeted methodological flaw. Models must pick the sounder proposal in both presentation orders. A human study estimates 86% of items are valid (95% CI 81-91%). Opus 5 reaches 77.9% accuracy, and models are sensitive to order and favor flawed designs that look more specific, transparent, or conventional.
arxiv.orgpaperAdded 26 Oct 2026, published 23 Oct 2026๐ง AI
CellTrack-Bench: Microscopic Cell Tracking Benchmark for Vision-Language ModelsCellTrack-Bench is a benchmark that tests vision-language models on microscopic cell tracking and compares them with specialised trackers. It has 1,537 problems covering 9,041 cell-linking decisions, drawn from 15 cell-tracking datasets across four imaging modalities, with a hard subset built from failures shared by distinct algorithmic trackers. The authors compare environment harnesses, benchmark 9 closed-source and 13 open-weight models, and analyse failure modes.
arxiv.orgpaperAdded 24 Oct 2026, published 22 Oct 2026๐ง AI
Training Small Language Models for Transferable Tool SelectionThis paper trains small open language models with reinforcement learning to select tools for multi-step instructions over corpora of more than ten thousand tools. A Qwen3-8B model post-trained with the recipe outperforms Llama-4-Maverick (402B) on ToolBench. The trained model transfers to different retrievers and generalizes to new tool corpora in other domains, without relying on proprietary LLMs like Claude or ChatGPT.
arxiv.orgpaperAdded 24 Oct 2026, published 22 Oct 2026๐ง AI
Drift Says When, Budget Says How Much: Rate-Controlled KV Re-selection for Long-Form Multimodal GenerationRate-Controlled Refresh (RCR) is a KV cache re-selection method for multimodal LLMs in long-form generation. Attention drift decides when and where to re-select visual tokens, and a per-sample controller sets how often. RCR beats InfiniGen by 1.6-3.8 ROUGE-L points on five of six model-task settings and stays within 1.7 points of exact per-step re-selection. On video description, where drift is homogeneous, it no longer beats a fixed threshold.
arxiv.orgpaperAdded 24 Oct 2026, published 22 Oct 2026๐ง AI
IFC-MCQ: Automatically Generating Multiple-Choice Benchmarks for Evaluating LLM Agents on IFC Data RetrievalIFC-MCQ is a method that automatically generates multiple-choice benchmarks from Industry Foundation Classes (IFC) building-model files, so answers can be graded by exact option-set match instead of human or LLM review. Its taxonomy has 15 categories and 36 subtypes in four groups, with answer keys from the file and distractors from file values or rules. Two agentic setups, tool-based and code-based retrieval, showed category-specific failures and variation by IFC model and interface.
arxiv.orgpaperAdded 23 Oct 2026, published 21 Oct 2026๐ง AI
Reverse Engineering IVXV: A Specification and Security Analysis of Estoniaโs Internet Voting SystemReverse Engineering IVXV is an October 2026 ePrint paper by Tingfeng Yu and Thomas Haines that reconstructs a specification of Estonia's IVXV internet voting system from public source code and documentation, with an executable TLA+ model checked in TLC. It analyses individual and universal verifiability, privacy, coercion resistance and eligibility, compares IVXV with Belenios and Swiss Post, and reports new vulnerabilities, some confirmed with proof-of-concept tests, plus mitigations.
eprint.iacr.orgpaperAdded 24 Oct 2026, published 21 Oct 2026๐ก๏ธ Security
AgenticRoboRL: Bringing Coding-Agent Post-Training to Agentic RoboticsAgenticRoboRL is a framework for post-training robot planners across different harnesses, combining supervised fine-tuning with multi-turn reinforcement learning. Harness-specific adapters link recorded planner interactions to task outcomes, so one RL pipeline covers both VLA skill invocation and control-code generation. On LIBERO-PRO, a 9B planner rose from 18.1% to 71.0% without external memory, near Codex (GPT-5.5) with memory at 72.1%. Code and checkpoints are promised.
arxiv.orgpaperAdded 22 Oct 2026, published 20 Oct 2026๐ง AI
Beyond 4 bits: Data-Centric Post-training Quantization and RecoveryThis paper studies 2-bit post-training quantization (PTQ) of six dense and mixture-of-experts models from 3.8B to 32B parameters. It finds the quantization representation matters most: vector codebooks give usable models where scalar PTQ falls to chance. Calibration and recovery data must be chosen jointly. The recipe uses about 2.3 effective bits per weight, keeps 89 to 97% of full-precision QA accuracy, and needs 1.4 to 30x less compute than the strongest QAT baseline.
arxiv.orgpaperAdded 22 Oct 2026, published 20 Oct 2026๐ง AI
Reward Misspecification Degrades Chain-of-Thought MonitorabilityThis paper shows that reward misspecification alone degrades chain-of-thought (CoT) monitorability in language models. Using a testbed of paired true and misspecified rewards across three models and three tasks, CoTs keep reasoning about task intent while outputs hack the reward. The proposed reward description training injects an LM-inferred reward description into the input and raises monitorability by an average of 24% or 42% absolute, depending on the metric.
arxiv.orgpaperAdded 22 Oct 2026, published 20 Oct 2026๐ง AI
Raise or Check? Predicting the Necessity of Additional Fuzzing for Continuous FuzzingRAISE (Risk-Aware Intensive Supplemental Execution Framework) is a just-in-time framework that predicts which project-days introduce a vulnerability, to decide where to spend extra fuzzing. The dataset joins OSV vulnerability-introducing commits with OSS-Fuzz coverage data for 15 C/C++ projects (15,210 project-days, 347 positive). A Random Forest using VCCFinder static features plus fuzzing features reaches ROC-AUC 0.74. In a simulation over 968 vulnerabilities, Simple-Regression needed 91.60 extra fuzzing sessions per detected vulnerability, against 171.89 for the Median heuristic.
arxiv.orgpaperAdded 22 Oct 2026, published 20 Oct 2026๐ก๏ธ Security
Can It Actually Work? Synthesizing Functional CAD MechanismsFunCAD-Harness is a framework in which LLM agents design CAD mechanisms and revise them using physical simulation feedback. It turns abstract functional requirements into candidate-specific physical tests. The paper also introduces FunCADBench, a benchmark of 46 mechanism families with interdependent, multi-step operations. Experiments on frontier LLM agents show it exposes mechanical failures that visual inspection misses and raises functional success over standard simulation-augmented baselines.
arxiv.orgpaperAdded 21 Oct 2026, published 19 Oct 2026๐ง AI
ASTOR: Benchmarking and Improving Autoformulation for Soft-Constraint Optimization with a Formal GrammarASTOR is an inference-time framework that has an LLM map a natural-language decision problem to a grammar-guided abstract syntax tree, then deterministically compiles it into executable optimization code. The paper also introduces SoftOR, a benchmark of natural-language problems with soft constraints. On SoftOR, ASTOR has the best aggregate accuracy among comparable single-request and multi-agent LLM methods, and it stays competitive on hard-constraint-only autoformulation benchmarks.
arxiv.orgpaperAdded 21 Oct 2026, published 19 Oct 2026๐ง AI
Post-quantum commutative group actions from oriented superspecial abelian varietiesCastryck, Dina, Kutas and Lorenzon study the Shimura class group action on superspecial principally polarized abelian varieties with a CM orientation, as a post-quantum commutative group action for key exchange. They give tools to represent CM orientations through higher-dimensional isogenies and to compute the action in the restricted effective group action model. These rely on a CM version of Kani's lemma and a trick that often halves the ambient dimension. The paper also gives a method for finding oriented superspecial abelian surfaces and analyses obstructions to transitivity.
eprint.iacr.orgpaperAdded 20 Oct 2026, published 19 Oct 2026๐ก๏ธ Security
EpiLens: Lightweight RAG for Epidemiological Knowledge AcquisitionEpiLens is a lightweight, open-source retrieval-augmented generation package that applies a fixed retrieval template and output schema to every paper in a corpus and links outputs to source passages. On a corpus of 2,297 epidemiology papers, its classifier matches or exceeds supervised and zero-shot baselines on four tasks without task-specific training data, scored against 214 manual labels. It also compares model-based study shares across parameters and pathogens.
arxiv.orgpaperAdded 21 Oct 2026, published 19 Oct 2026๐ง AI
Fake News, Real Crashes: Information Injection Attacks on LLM Financial Trading AgentsFake News, Real Crashes is an October 2026 arXiv paper presenting a benchmark for information injection attacks on LLM financial trading agents. It spans five injection vectors, seven event categories and about 10,000 decisions on 15 U.S. stocks. Fabricated news reached 62% attack success versus 14% for prompt injection, and two 30-word templates hit 100%. Only hierarchical aggregation reduced success among the defenses tested.
arxiv.orgpaperAdded 21 Oct 2026, published 19 Oct 2026๐ก๏ธ Security
A Key-Recovery Attack on the GTLN Knapsack Cryptosystem via Continued FractionsThis ePrint paper (2026/2543) gives a key-recovery attack on the GTLN knapsack public-key cryptosystem of Gรณmez-Torrecillas, Lobillo and Navarro. Continued fractions recover small-denominator ratios of public-key differences, and gcd computations then yield private-key integers, the modulus and the shift, using only the public key. The Python implementation recovered the full private key in all 2,400 trials across 24 recommended parameter sets, each in under 0.05 seconds.
eprint.iacr.orgpaperAdded 20 Oct 2026, published 19 Oct 2026๐ก๏ธ Security
Computing endomorphisms of superspecial principally polarized abelian surfaces in time and memory \(p^{4/5+o(1)}\)Computing endomorphisms of superspecial principally polarized abelian surfaces is a cryptanalysis preprint by Marc Houben and Lam L. Pham, posted to IACR ePrint in October 2026. It gives an algorithm that, under a standard heuristic, finds a non-scalar polarized endomorphism in expected time and memory p^(4/5+o(1)). The abstract is the only text available, so the method and its effect on specific schemes are not described.
eprint.iacr.orgpaperAdded 19 Oct 2026, published 18 Oct 2026๐ก๏ธ Security
Revisiting the Security of VDOORevisiting the Security of VDOO is an ePrint paper (October 2026) on VDOO, a multivariate signature scheme submitted to China's NGCC program. It models VDOO as a multilayer Rainbow construction, keeps only the last oil space to get a generalized UOV instance, and applies wedge attacks. For the 512-bit parameter set it estimates 2^432 gates (reconciliation) and 2^379 gates (intersection), below the claimed level and the specification's figures.
eprint.iacr.orgpaperAdded 19 Oct 2026, published 18 Oct 2026๐ก๏ธ Security
Superspecial points on Humbert surfaces and the probability of (N,N)-splittingDetermines, to first order in 1/p with an explicit error bound, the proportion of superspecial principally polarized abelian surfaces over F_p-bar (p โก 3 mod 4) that are optimally (N,N)-split. The expected number of optimal splittings is exactly 5NยทJ_2(N)(p-1)/(pยฒ+1), so the split proportion is about 5NยทJ_2(N)/p. This gives the stationary target density of the splitting-detection attack on the dimension-two superspecial isogeny problem, which was previously known only from experiments or a one-sided bound. The proofs use Siegel's mass formula and genus averages over refined Humbert invariants, and every formula was checked by exact computation at twelve primes.
eprint.iacr.orgpaperPublished and added 17 Oct 2026๐ก๏ธ Security
OpenGCUA: Toward a Fully Open Stack for Generalist Computer UseOpenGCUA, from Alibaba's MAI-UI team, is an open stack for generalist computer-use agents (GCUAs), where the model chooses how to observe, act and organize work across GUI, accessibility-tree, API and shell interfaces. Its design combines code execution (GUI actions written as programs with loops and branches) with harness-to-model decision transfer. On OSWorld-v2 it raises mean partial score by +19.6 points across eight models, including GPT-6 Astra and Claude Opus 5, and cuts reported steps per task by 53%. The release includes the harness, prompts, evaluation trajectories, a macOS real-device harness, a cross-device SDK and an interactive lab. It also shows large efficiency gaps between models: Qwen3.8-Max used 19.4x the reasoning tokens of GPT-6 Astra on real macOS tasks.
huggingface.copaperAdded 17 Oct 2026๐ง AI
RATION: Towards Quantitative Risk-Based Access Control for AI AgentsRATION is a security framework for AI agents that tracks measurable risks from agent actions and enforces quantitative constraints during task execution, instead of simply restricting actions. It builds a task-specific policy from explicit constraints in the user request plus implicit risks calibrated from historical runs of similar tasks. Experiments on four security benchmarks show strong security with high task utility across models and environments.
arxiv.orgpaperAdded 21 Oct 2026, published 16 Oct 2026๐ก๏ธ Security
On the possibilities and limitations of LLM-based multi-agent systems for multi-criteria decision-making in healthcare operations managementThis paper proposes a framework for auditing LLM-agent-generated stakeholder preferences before they are used as weights in multi-objective optimization for healthcare operations. Experiments on outpatient appointment scheduling and emergency department configurations show that explicit ratings vary by role and clinic conditions, deliberation can erase role differences, and pairwise choices depend largely on option order. Robust weighted-sum models often select different schedules than average weights.
arxiv.orgpaperAdded 20 Oct 2026, published 16 Oct 2026๐ง AI
OwlSight: A Panoramic Monitor for Chain-of-Thought ReasoningOwlSight is a chain-of-thought monitor that uses "Factor", a monitoring requirement written into the prompt, so one monitor can cover many tasks across capability, safety and trustworthiness. Factors come at fine granularity (a specific leaked email address) and coarse granularity (privacy leakage). On 15,971 reasoning trajectories it beats general-purpose LLMs by 1.32-30.57 points (fine) and 11.71-27.81 points (coarse), and reaches state-of-the-art on OpenAI's CoT monitorability benchmark. It generalizes to unseen models and resists Factor rephrasing, CoT compression and obfuscation.
arxiv.orgpaperAdded 20 Oct 2026, published 16 Oct 2026๐ง AI
ThetreStageAI: Multi-View Retrieval-Augmented Generation for Structured Bengali Theatre Production PlanningThetreStageAI is a retrieval-augmented framework for structured Bengali theatre production planning. It keeps separate scene, actor-blocking and lighting views, embeds Bengali text with BGE-M3, indexes it in view-specific Qdrant collections, and has Gemini generate schema-constrained JSON, with validation and at most one repair attempt. The authors build a synthetic dataset of 500 records (1,500 retrieval documents) and compare single-combined retrieval with multi-view retrieval. Code and data are public.
arxiv.orgpaperAdded 20 Oct 2026, published 16 Oct 2026๐ง AI
Predictable Scaling: Efficient Model Exploration via Scaling-Law PredictionPredictable Scaling (PS) is a framework that predicts full-scale recommendation model performance from scaled-down proxies. It builds proxies with composable scaling functions along separate resource axes, then projects metrics to target scale by curve fitting with calibrated uncertainty. Of three predictors, even the raw proxy falls within repeated-run noise, and a Gaussian Process gives 15% lower relative MAE. On a task-specific ranker and a foundation ranker, PS ranks hypotheses correctly at 79-88% compute reduction.
arxiv.orgpaperAdded 20 Oct 2026, published 16 Oct 2026๐ง AI
LexPilot: Benchmarking the Proactive Interaction Ability of Legal LLMs with Laypeople in Chinese Civil Case ConsultationLexPilot is a benchmark linking proactive legal interaction to claim-level verdict prediction, built from 432 real Chinese civil judgments across 36 causes of action. It pairs expert-reviewed complete and underspecified consultation histories with court verdicts. Current LLMs score on average 23.84% lower on judgment prediction in underspecified consultations than in fully specified ones, and the paper analyses the bottlenecks.
arxiv.orgpaperAdded 20 Oct 2026, published 16 Oct 2026๐ง AI
SpikeQ: Spike-Guided Post-Training Quantization for Spiking Neural NetworksSpikeQ is a spike-guided post-training quantization framework for spiking neural networks on neuromorphic chips. It picks each weight level by simulating downstream neurons to minimize spike errors, and uses a reset-aware grid for pre-fire membrane potentials. With 4-bit weights and potentials, models stay within 2.59 points of full precision, with 7.8 to 7.9 times smaller memory and 6.4 to 6.9 times less energy.
arxiv.orgpaperAdded 20 Oct 2026, published 16 Oct 2026๐ง AI
Identify, Classify, Act: Per-Instruction Controlled Compliance for LLMs over External DataEDIC is a decomposed reward framework that trains LLMs to decide, for each instruction embedded in external data such as documents or tool returns, whether to follow or reject it. A judge initialized with SFT and refined with GRPO attributes compliance per instruction and yields separate rewards for beneficial and harmful compliance. On Qwen3-4B it raises harmful-rejection by up to 7.7% and Arena-Hard-Auto utility by 12.5% over the strongest prior defense.
arxiv.orgpaperAdded 20 Oct 2026, published 16 Oct 2026๐ง AI
Between Spoilers and Guesswork: Avoiding Over-Specification in Coding BenchmarksThis October 2026 arXiv paper studies task over-specification and under-specification in repository-level coding benchmarks. It shows that hints derived from ground truth, as added in SWE-bench Pro, FEA-bench, Doc2Feat-bench and Multi-SWE-bench, leak spoilers in some of them. The authors test several specification levels, recommend techniques for parsimonious hints, and plan to release their hints.
arxiv.orgpaperAdded 20 Oct 2026, published 16 Oct 2026๐ง AI
Perceive, Predict, and Plan: a Unified World Action Model for Egocentric Dexterous ManipulationP^3-WAM is a unified world action model for egocentric dexterous manipulation with three modes: Perceive (reconstruct articulated hand motion and camera trajectories from video), Predict (generate visual futures under prescribed actions) and Plan (jointly generate action trajectories and their anticipated visual outcomes from an initial image, a language instruction and an optional visual goal). It adds a compact structured 3D action representation to a pretrained video diffusion transformer through a mixture-of-transformers design with shared base weights, modality-specific adaptation and bidirectional visual-action attention. Randomized modality visibility lets video and 3D actions act as either context or target. Unified training beats single-mode training and outperforms specialized baselines on 3D hand reconstruction and action-conditioned video prediction across four datasets, and gives better instruction adherence than video-generation baselines.
arxiv.orgpaperAdded 17 Oct 2026, published 15 Oct 2026๐ง AI
Grounding Generative Verification in 3D ContentThe paper introduces 3DVerifierBench, a 10-task benchmark for generative verification of 3D content. It scores accept/reject decisions, rejection explanations, and responses to controlled changes in specifications and candidates. A human study shows a 21.6-point gap to the strongest tested model, GPT-6 Astra. The authors also build a pipeline of multi-view fact extraction, controlled 3D editing and native annotations. It yields 14,126 training examples with contradiction explanations and linked counterfactuals. Verification-guided selection raises complete factual success from 26.7% to 90.0% with oracle selection over sixteen candidates, and human-guided recursive refinement satisfies all seven requirements for every input in an eight-input study.
arxiv.orgpaperAdded 17 Oct 2026, published 15 Oct 2026๐ง AI
MLExpert: Towards a Generalist Agentic Model for Autonomous Machine Learning EngineeringPresents MLExpert, a 35B Mixture-of-Experts agentic model trained for autonomous long-horizon machine learning engineering. Training uses a Kaggle-MLE Factory to build executable tasks and an interaction harness, hierarchical agentic SFT with outcome-guided supervision, and Windowed Interaction RL (WIRL). WIRL treats the multi-turn decisions between successive experiment results as one execution window with a shared outcome reward, and uses asynchronous collection and policy correction. On MLE-Bench Lite the average medal rate rises from 37.9% to 72.7%, comparable to larger frontier models such as Kimi-K3 and GLM-5.3. It also improves on NatureBench Lite, agent scaffold optimization and algorithm optimization.
arxiv.orgpaperAdded 17 Oct 2026, published 15 Oct 2026๐ง AI
Learning to Steer LLM Agents and Multi-Agent SystemsProposes a steering agent that supervises LLM agents and multi-agent systems during execution and corrects goal drift, where long-horizon tool use and inter-agent collaboration slowly diverge from the overall objective. A low-cost fast path decides when to intervene, and a high-cost slow path generates how to intervene. Both paths are trained jointly with reinforcement learning, combining a pairwise ranking objective with GRPO. On information-seeking search tasks it improves performance and efficiency for single-agent and multi-agent systems, generalizes out of domain, transfers to unseen executors, and allows intervention frequency to be adjusted without retraining.
arxiv.orgpaperAdded 17 Oct 2026, published 15 Oct 2026๐ง AI
AI Consilium: a Benchmark of LLM Clinical Multidisciplinary Second OpinionsAI Consilium is a multidimensional benchmark built from 300 diagnostically resolved NEJMโMedQA cases (110 for physician reference ratings and Judge calibration, 190 held out). Eight single-model pipelines produced role-specific opinions and interactive-consilium reports under free-form and structured clinical-reasoning conditions, and a physician-calibrated LLM Judge scored 3,040 final reports. Model identity separated quality more than format; structured reports won in seven of eight pipelines (management 2.740 vs. 2.436), multidisciplinary synthesis beat the primary-role opinion on all five shared criteria, and GPT-5.6-Sol led every component with the fewest review rounds.
arxiv.orgpaperAdded 17 Oct 2026, published 15 Oct 2026๐ง AI
EliteReplay: Preserving Diverse Solutions in RL Post-Training via Quality-Diversity SearchEliteReplay is an RL post-training recipe that pairs GRPO with an "elite" archive built by quality-diversity search. Before training, the frozen base model is used to collect solutions spanning distinct approaches; during training, a replay loss on this archive is added to GRPO. This counters the narrowing of solution diversity that RL causes. On text-to-SQL tasks it reaches higher pass@128 than all baselines and yields up to 77% more distinct correct strategies. It also retains more of the base model's strategies and covers both readings of ambiguous questions nearly twice as often on AmbiQT.
arxiv.orgpaperAdded 17 Oct 2026, published 15 Oct 2026๐ง AI
Librarian Agents: Training LLMs to Curate Long-Context Workspaces that Anticipate Future QueriesIntroduces Librarian Agents, where a builder agent turns raw unstructured documents into a hierarchical filesystem of synthetic files and reference links, forming a workspace for a downstream answering agent. Workspace construction is cast as a Markov decision process and the builder policy is trained with reinforcement learning to maximize downstream answering accuracy. It beats the strongest retrieval and precomputation baselines by 33 points on BrowseComp-Plus, amortizes construction cost over repeated queries, and generalizes zero-shot to BRIGHT with a 31-point average gain.
arxiv.orgpaperAdded 17 Oct 2026, published 15 Oct 2026๐ง AI
Skill-Decoupled On-Policy Expert Distillation for Unified Vision-Language ModelsProposes SCOPED (Skill-Decoupled On-Policy Expert Distillation), which trains capability-specific RL experts for vision-language models. It extracts explicit skills from them through reward-guided reflection. During on-policy distillation the skills guide expert supervision but are hidden from the unified student, so the student internalizes the procedural knowledge and needs no explicit skills at inference. Across eight multimodal benchmarks it beats the backbone and mixed-capability RL. Analyses show cross-capability gradient interference in joint RL, and that skill augmentation gives more consistent expert trajectories, more attention to task-relevant visual evidence, and better preservation of expertise.
arxiv.orgpaperAdded 17 Oct 2026, published 15 Oct 2026๐ง AI
Multi-sourced AI Tutor for Non-Native English Speaker StudentsDescribes a general-purpose LLM-based AI tutor for computing courses that accepts questions in Mandarin and replies bilingually, also generating glossaries of technical terms. It uses a specialized multi-source RAG pipeline with a novel question extraction mechanism to draw on diverse course materials. Evaluated on 91 Piazza posts: 83.52% answered correctly and helpfully, 76.92% of questions got high-quality translations, and 64.47% got glossaries.
arxiv.orgpaperAdded 17 Oct 2026, published 15 Oct 2026๐ง AI
DropKV: Decoupling Residual-Output Perturbation for Near-Optimal KV-Cache EvictionDropKV is a KV-cache eviction framework for long-context LLMs. It decouples the joint eviction decision into independent per-token scores based on residual-output perturbation, which avoids the NP-hard combinatorial problem. It has a provable constant-factor approximation guarantee under a cone condition, which the authors verify empirically on three long-context LLMs. The fused Triton kernels never materialize the full attention matrix. They give a 19.8x scoring-kernel speedup and up to 9.9% end-to-end prefill speedup. On RULER and LongBench it beats state-of-the-art eviction baselines at equal cache budgets.
arxiv.orgpaperAdded 17 Oct 2026, published 15 Oct 2026๐ง AI
GraphACM: Graph-based Action Consistency Measurement for Uncertainty Quantification in LLM AgentsGraphACM merges equivalent states from multiple rollouts of the same LLM agent task into a directed, action-labeled graph, so actions can be compared at shared decision states. It defines node-level and global action-consistency measures, and uses the global score as an uncertainty proxy to predict task success or failure. Across three LLMs on ALFWorld, AppWorld and WebShop it reaches an average AUROC of 0.811, above the strongest behavioral-consistency baseline (0.729) and verbalized confidence (0.769). It also shows where in a trajectory agent actions diverge.
arxiv.orgpaperAdded 17 Oct 2026, published 15 Oct 2026๐ง AI
GACC-Bench: Benchmarking Goal-Adaptive Context Compression Ability across Large Language ModelsGACC-Bench is a benchmark for Goal-Adaptive Context Compression, testing how well LLMs retain goal-relevant information when compressing a source context under a length budget before downstream questions are known. It has 500 goals and 2,571 human-reviewed questions over 281 document and agent-trace contexts from seven collections; a fixed reader answers the withheld questions from the compressed context. Ten LLM compressors show large gaps to full-context performance, especially in answering every question tied to a goal. Target-goal conditioning improves accuracy over goal-agnostic compression, while mismatched goals hurt it.
arxiv.orgpaperAdded 17 Oct 2026, published 15 Oct 2026๐ง AI
From Perception to Prediction and Intervention: Benchmarking Proactive Video Assistants in Real-Life ScenariosIntroduces P^3IBench, a benchmark for proactive video understanding in real-life streaming scenarios, covering three capabilities: daily perception, risk prediction and intervention. It evaluates 12 open-source and proprietary video-language models (streaming and adapted non-streaming) and finds they struggle to make well-calibrated decisions about when to respond. The authors also build extra proactive training data and train P^3I-Assistant-4B, which improves several tasks unevenly, showing that proactive assistance needs response timing and restraint as well as visual understanding.
arxiv.orgpaperAdded 17 Oct 2026, published 15 Oct 2026๐ง AI
Approve What, Exactly? Effect Binding and Trusted Rendering for Agent Step-Up AuthorizationPaper arguing that agent human-approval prompts count as a second factor only if agent compromise cannot forge them and they name exactly what is approved. It defines twelve attacks on the approval path (decoy recipients, amount cancellation, card padding, label spoofing, enrollment squatting, threshold splitting) and tests them against AP2, Microsoft's action-bound approval design and MCP elicitation. An audit of ten agent runtimes found no third-party verifiable approval record and post-approval argument changes in four of eight. The reference defense ASU (Agent Step-Up) renders the card from a canonical effect descriptor, has a phone passkey sign its digest, and executes only the stored call. It is proven in Tamarin (53 lemmas) and evaluated on 27,108 scripted trials and 609 AgentDojo pairs. The trusted card cut forged-narration attack success from 0.54 to 0.03 and raised LLM-approver catch rate from 0.30 to 0.98.
arxiv.orgpaperAdded 17 Oct 2026, published 15 Oct 2026๐ก๏ธ Security
From Detection to Decision: Calibration and Deferral for Prompt-Injection DetectionEvaluates a native probabilistic decision model (Jev), Llama Prompt Guard 2 (22M and 86M) and an LLM judge on 47,611 held-out examples covering direct/indirect prompt injection, hard-benign inputs, obfuscation and distribution shift. The LLM judge has the best AUROC (0.897), followed by Jev (0.871), Prompt Guard 2 86M (0.757) and 22M (0.714). Jev's native probabilities do not consistently beat post-hoc calibrated classifier scores, and temperature scaling improves calibration but not discrimination. At a 1% false-negative-rate target, every system needs over 91.8% escalation, so probabilistic outputs alone do not give reliable security decisions under distribution shift.
arxiv.orgpaperAdded 17 Oct 2026, published 14 Oct 2026๐ก๏ธ Security
Thinking in Graphs: Neo4j-Backed Exploit-Chain Reasoning for LLM Penetration-Testing AgentsChainGraph is a pattern that moves exploit-chain reasoning out of the flat context window and into a Neo4j property graph. Findings, attack steps, credentials, assets and tamper-evident evidence receipts are typed nodes with pre/post-condition edges. The graph is wired to Claude Code or Codex through MCP with no custom harness. Five operator questions (next-step inference, entry-to-crown-jewel pathing, combined-severity promotion, evidence provenance, chokepoint identification) become reusable Cypher and Graph Data Science queries, plus a chain-severity score. On a synthetic multi-forest Active Directory lab modeled on GOAD, three findings rated Medium in isolation become Critical once their path to the forest root is materialized. Scoping each decision to a graph result cut the reasoning payload by about 98% on a token proxy. The authors say the results are illustrative single-run measurements, not a benchmark.
arxiv.orgpaperAdded 17 Oct 2026, published 14 Oct 2026๐ง AI
Foundations of Hardware-Software Leakage ContractsSurvey-style paper introducing hardware-software leakage contracts, an ISA-level security abstraction that characterizes microarchitectural side-channel leakage (caches, speculative execution). It lets programmers and compilers produce code provably resistant to side-channel attacks like Spectre and Meltdown without reasoning about the microarchitecture, and gives hardware designers a specification to avoid undocumented side channels. It reviews recent contributions and open challenges.
arxiv.orgpaperAdded 17 Oct 2026, published 14 Oct 2026๐ก๏ธ Security
Hardware-Level Mitigation of Micro-Architectural Leakages in Embedded ProcessorsProposes RTL-level architectural changes to general-purpose processors that remove the root causes of micro-architectural leakage, so masked cryptographic software runs securely under the Robust but Relaxed (RR) d-probing model without security-aware compilers or hardware-specific software workarounds. Each countermeasure is formally proven secure and integrated into the Ibex RISC-V core, which is evaluated by tool-assisted leakage assessment of the full netlist and by physical measurements on an FPGA.
eprint.iacr.orgpaperPublished and added 14 Oct 2026๐ก๏ธ Security
Tamper Sensing Meshes in Payment Terminals and BeyondTeardown study of tamper sensing meshes (TSM) across a wide range of card payment terminals, ATM key pads and a data center HSM, with detailed photos of critical features. The authors build a taxonomy of mesh construction techniques, find most commercial meshes use simple constructions far from manufacturing limits, and derive a concise set of design patterns. They argue that meshes beating the industrial state of the art are feasible with cheap, readily available processes, giving researchers a basis for realistic test specimens.
eprint.iacr.orgpaperPublished and added 14 Oct 2026๐ก๏ธ Security
ChunkAct: Action Chunking for Agentic RoboticsChunkAct brings action chunking to agentic robotics, where an LLM agent composes perception, motion and VLA tools guided by memory. Online, one call launches a chain of primitives that runs autonomously and returns control only on failure. Offline, memory is compiled into these chunks so execution needs no memory at test time and the planner is used only for real decisions. On LIBERO-Pro it improves task success by 5.0 points over the prior agentic-robotics state of the art, with 2.9x fewer LLM calls, 4.4x fewer input tokens and 2.3x fewer output tokens.
arxiv.orgpaperAdded 14 Oct 2026, published 13 Oct 2026๐ง AI
PixelMoE: Scaling Pixel-Space Diffusion with LLM-Style Mixture-of-ExpertsPixelMoE is a pixel-space diffusion framework that scales capacity sparsely using standard LLM-style Mixture-of-Experts: token-choice routing, fine-grained routed experts, a shared expert and bias-based load balancing, with no diffusion-specific routing or auxiliary routing losses. It adds Pixel-Space Hierarchical Flow Matching, which varies spatial resolution along the denoising trajectory from global structure to fine detail. At matched active parameters it beats dense counterparts, and reaches FID 1.47 at 256x256 and 1.53 at 512x512 on class-conditional ImageNet-1K without representation alignment or perceptual losses. Code and models are promised but not yet released.
arxiv.orgpaperAdded 14 Oct 2026, published 13 Oct 2026๐ง AI
OmniCompass: A Holistic Benchmark for Omni-Modal Video Grounding and UnderstandingOmniCompass is a manually annotated benchmark for video grounding and understanding with two tracks: OmniCompass-VL (820 videos, 2,460 instances; vision-language models) and OmniCompass-AV (240 videos, 720 instances; joint audio-visual evidence for omni-modal models). Each track covers temporal grounding, spatial grounding and QA across short/medium/long videos, and each instance is run in paired text-only and text+image target specifications. Evaluating 50 MLLMs shows open-source models lag proprietary ones, especially on audio-visual understanding, that precise temporal/spatial grounding remains hard, and that predictions are inconsistent across the paired specifications.
arxiv.orgpaperAdded 14 Oct 2026, published 13 Oct 2026๐ง AI
MultiAlloc: Budget-Aware Precision Allocation for KV Cache QuantizationMultiAlloc is a profiling-guided framework for KV cache quantization. It splits a fixed KV memory budget between layer-wise precision enhancement and token-wise preservation. Lightweight offline profiling measures layer sensitivity and token importance, and the profiled memoryโaccuracy trade-off yields an allocation policy with no online search. The paper reports gains over layer-wise, token-wise and recent multi-granularity KV quantization baselines at matched memory on reasoning and long-context benchmarks, across Mistral, Llama, DeepSeek-Qwen and QwQ models.
arxiv.orgpaperAdded 14 Oct 2026, published 13 Oct 2026๐ง AI
Legal-R1: Agentic Retrieval for Evidence-Based Legal ReasoningLegal-R1 is an agentic retrieval framework for evidence-based legal question answering that splits reasoning across three agents. A Lawyer agent decides when to retrieve, which legal source to query, what evidence to seek and when it has enough. A Legal Assistant retrieves statutes and precedent cases with authority-aware and diversity-aware selection, and a Judge agent writes the final answer from the full evidence trajectory. Only the Lawyer agent is post-trained, using masked supervised fine-tuning and trajectory-aware reinforcement learning. The paper reports gains over general-purpose, legal-specific and retrieval-augmented baselines on several Chinese legal benchmarks.
arxiv.orgpaperAdded 14 Oct 2026, published 13 Oct 2026๐ง AI
LLM Agents for Automated Post-Training via Structured Recipe OptimizationIntroduces Structured Recipe Optimization (SRO), a paradigm for automated LLM post-training that optimizes over a task-adapted recipe space covering data sources, data processing, cross-domain composition and training configuration. It pairs an LLM-based Recipe-Space Designer, which builds the recipe space for the target tasks, with a Multi-Domain Recipe Optimizer that uses structured trial evidence to guide LLM candidate construction and multi-objective Bayesian trial selection. SRO gets the highest average score in all evaluated target-model and agent-LLM combinations; for example, 41.1 vs 15.4 for the strongest baseline on Qwen3-1.7B with GPT-5.4, and 53.8 vs 40.8 on Qwen3-4B with DeepSeek-V4-Flash, in joint post-training across three capability domains and six benchmarks.
arxiv.orgpaperAdded 14 Oct 2026, published 13 Oct 2026๐ง AI
Towards Safe Autonomy for Computer UseIntroduces SA-CUA, a dual-LLM framework that gives Computer Use Agents a trust boundary against indirect prompt injection. It derives conservative deterministic rules from the accessibility tree to unmask trusted screen regions for the privileged LLM, and adds an endorsement channel that moves values from untrusted to trusted domains by verification. Human input is needed only at task specification. It reports much higher utility than CaMeL-CUA with a zero attack success rate.
arxiv.orgpaperAdded 15 Oct 2026, published 13 Oct 2026๐ก๏ธ Security
Kairos: Transactional Security Enforcement at the System Boundary for LLM AgentsKairos is a reference monitor placed at the isolation boundary of an unmodified, opaque LLM agent, where tool calls, shell commands and agent-written scripts all appear as the same file and network operations. A declarative trust policy decides most effects deterministically and defers the rest; deferred effects are held while the agent continues speculatively, and a bounded-authority decision oracle (an LLM or a human) releases or refuses them based on the trace. Across three benchmarks and three agent models it beats existing defenses on the attack-success/utility trade-off; on AgentDojo it cuts attack success from 47.0% to 2.7% with no loss of benign utility.
arxiv.orgpaperAdded 15 Oct 2026, published 13 Oct 2026๐ก๏ธ Security
EmoGenie: Benchmarking and Evaluating Expressed and Evoked Emotion in T2I Generation with MLLMsEmoGenie is a benchmark for emotions expressed and evoked by text-to-image outputs. It has 6,400 images from eight T2I models using 800 emotion-targeted prompts. It includes EmoGenie-QA (90,000 closed-set and 1,057 open-ended questions) and EmoGenie-Assess (13,175 mean opinion scores for valence, arousal, dominance and aesthetic quality). The authors also propose EmoProbe, which pairs emotion QA with response-aligned, dimension-specific regression heads. They report that it beats baselines on emotion QA and correlates better with human ratings. The work shows how reliably MLLMs interpret affect in generated images.
arxiv.orgpaperAdded 14 Oct 2026, published 13 Oct 2026๐ง AI
Leakage-Resilient Incompressible Cryptography: Constructions and BarriersIntroduces leakage-resilient incompressible cryptography, a security model combining leakage resilience (partial key leakage plus full ciphertext) with incompressibility (full key but only part of the ciphertext or signature). It gives a transformation from incompressible symmetric-key encryption (SKE) to leakage-resilient incompressible SKE, a leakage-resilient incompressible PKE built from a new leakage-resilient non-committing KEM, and an incompressible SKE with ciphertext and compression rate 1/2 using invertible extractors. It also gives a leakage-resilient incompressible signature scheme in the random oracle model under DCR or LWE plus Decisional Linear. Black-box impossibility results show barriers to improving these parameters.
eprint.iacr.orgpaperAdded 14 Oct 2026, published 13 Oct 2026๐ก๏ธ Security
A methodology to derive security specifications for complex electronic systemsPaper proposing a risk-based methodology to derive security specifications for complex electronic systems such as AI chips and chiplet-based designs. It walks from system missions to assets, threat analysis, security requirements and then countermeasure selection. The method is illustrated on datacenter and automotive chiplets for the missions of secure provisioning, trimming, debugging, booting and remote attestation, and addresses the longer supply chain and multi-tenant threats that chiplets introduce.
eprint.iacr.orgpaperAdded 14 Oct 2026, published 12 Oct 2026๐ก๏ธ Security
LLM-based Code Auditing by Inferring and Evaluating Developer AssumptionsPresents Creed, an LLM-based code auditing approach that infers a developer's security-related beliefs for a function, scores how reasonable each is, and derives the conditions under which it is violated. It catches domain-specific semantic flaws that syntactic static analysis misses, such as a timing side-channel that undermines user-enumeration protection. The paper also introduces two measures for explanation-based vulnerability detection, recall and overhead. On a recent real-world benchmark, Creed beats existing explanation-based tools on the effectiveness-effort trade-off.
arxiv.orgpaperAdded 15 Oct 2026, published 11 Oct 2026๐ก๏ธ Security
KedgeFlow: A Programmable Control Plane for Enterprise AI AgentsKedgeFlow specifies language-independent contracts so trusted controllers can authorize state-changing operations by enterprise AI agents and privileged gateways can enforce that authority independently of agent reasoning. It combines evidence-backed policy checks, signed permission for an exact action, a single-use shared allowance, target-side conditions and retained outcome records, with two conditional properties (at most one claim per allowance; every dispatch linked to a grant and claim) that hold even if the agent is compromised. A reference implementation exposes the path via MCP; evaluation on a three-member etcd cluster gave exactly one successful claim for each of 82 allowances across 6,560 concurrent attempts, and one committed effect in a 32-call gateway race. The authors report limits: permissive policy still authorized an undesirable effect, and distributed reservations, production access routes, crash recovery and real-target exactly-once effects remain untested.
arxiv.orgpaperAdded 15 Oct 2026, published 10 Oct 2026๐ง AI
Flying, Not Floating: Precise Fixed-Point Falcon on Embedded ProcessorsPresents the first fixed-point FN-DSA (Falcon) signer for microcontrollers, using 32.64 arithmetic in constant-time Cortex-M4 assembly for Falcon-512 and Falcon-1024. Techniques that keep reciprocals, inverse square roots and small constants wide and round once at the consumer restore the precision lost by naive fixed-point. Measured precision supports about 2^99.7 (Falcon-512) and 2^96.7 (Falcon-1024) signing queries per key, against about 2^61.5 and 2^58.7 for double precision and the 2^64 target. The signer needs about 45% fewer cycles than double-precision emulation, at the cost of signing RAM rising from 59n to 83n bytes. The paper also shows which implementation choices lift double-precision c-fn-dsa above 2^64, derives Falcon-1024 key-generation bounds (72.3% of keys accepted vs 8.5% with the Falcon-512 values), and gives recommendations for the fixed-point FN-DSA NIST plans.
eprint.iacr.orgpaperAdded 12 Oct 2026, published 9 Oct 2026๐ก๏ธ Security
ReplaySSM: Cache SSM Inputs, Not StateReplaySSM represents state-space model state as a periodically updated checkpoint plus a buffer of recent SSM inputs, separating output computation from checkpoint updates. This avoids state writes on most decoding steps (roughly halving dominant state memory traffic), makes speculative-decoding rollback a buffer-pointer operation, and lets a low-precision checkpoint serve outputs while a higher-precision one drives recurrent updates. Implemented in vLLM for Mamba-2 and Gated DeltaNet, it gives 1.20โ1.47x decoding speedup at batch size 256 across four hybrid models and about 1.8x the throughput of vLLM speculative decoding on two 120B-class models.
arxiv.orgpaperAdded 12 Oct 2026, published 9 Oct 2026๐ง AI
Matched-Context Group Policy Optimization for LLM Agent TrainingProposes Matched-Context Group Policy Optimization (MCGPO), which builds weighted action preferences from already-collected sibling rollouts to give credit to intermediate decisions when feedback is sparse and arrives only at the end. Comparison contexts use pre-action state summaries and rubric progress. Exact and coarse matching rules are selected by two-action support, and fixed folds separate candidate decisions from the terminal outcomes that orient them. An evidence-weighted auxiliary pairwise loss is added to GraphGPO task learning, and no critic is needed. Across six environment-backbone settings with three seeds each, it beats GraphGPO by 0.47-1.46 points on ALFWorld and WebShop with Qwen2.5-1.5B/7B, and by 3.96 and 5.16 points on WebShop with Qwen3-4B/8B. ALFWorld gains are small because baseline success is already above 92%.
arxiv.orgpaperAdded 12 Oct 2026, published 9 Oct 2026๐ง AI
A Baseline Assessment for the Agentic Web Technology StackProposes MASTIF (Multi-Agent System TestIng Framework) for evaluating Agentic Web stacks. It reports a baseline assessment of 3 LLMs, 3 protocols and 4 agent implementation frameworks on 300 Mind2Web benchmark tasks. Results suggest that choosing a task-specific stack can improve task completion rate, efficiency and social value stability, and can reduce verbosity and completion time. This gives developers reference metrics for choosing among fast-moving agent protocols and frameworks.
arxiv.orgpaperAdded 12 Oct 2026, published 9 Oct 2026๐ง AI
Benchmarking Answer-Grounding Consistency in Remote Sensing Visual Question AnsweringProposes the Answer-Evidence Support Protocol (AESP), which checks whether the grounding evidence a model outputs actually supports its own answer in grounded remote sensing visual question answering. It applies task-specific rules to existence, counting and comparison questions. The authors build the G-RSVQA benchmark of 15,027 samples with questions, reference answers and object-level annotations. Tests on seven grounded vision-language models show evidence-support failures on all three question types, with up to 50.82% of correct answers unsupported by their grounding evidence.
arxiv.orgpaperAdded 12 Oct 2026, published 9 Oct 2026๐ง AI
Humanize Olympiad Agents: A Multi-Session Workflow for Olympiad Problem Solving with Solve, Review, Wiki, VerifyHOA (Humanize Olympiads Agent) is an open, flow-level framework that coordinates several agent sessions through three feedback channels: an independent reviewer that critiques each candidate, a structured wiki supplying task-specific knowledge the base model may lack, and a verifier that checks generated Lean proofs against trusted challenge statements. With GPT-5.6 Sol it reports perfect scores on IMO, IPhO and IOI 2026, near-full marks on IChO 2026, 672/672 on PutnamBench, and first place on the Lean-Eval leaderboard (251/304). With the open model Kimi-K3 it matches or exceeds a GPT-5.6 Sol + /Goal baseline on several contests, which suggests systematic feedback can narrow base-model capability gaps.
arxiv.orgpaperAdded 12 Oct 2026, published 9 Oct 2026๐ง AI
AgentTune: A Unified Training Lifecycle for Tool-Using LLM AgentsAgentTune is a source-available Python library that unifies building, training, evaluating, distilling and maintaining tool-using LLM agents. Its core is a two-tier EventLog representation that preserves agent trajectories and yields consistent projections for training, evaluation and auditing. On top of it sit a shared agent runtime, tool-calling reinforcement learning, agentic distillation, RAG, decision workflows, evaluation utilities and a designed path toward self-healing agents, demonstrated on tasks such as legal contract search.
arxiv.orgpaperAdded 12 Oct 2026, published 9 Oct 2026๐ง AI
RM-KLPT: Algebraic Pathfinding for Superspecial Abelian Surfaces with Maximal Real MultiplicationThe paper presents RM-KLPT, an algorithm that solves the algebraic pathfinding problem in isogeny graphs of superspecial abelian surfaces with maximal real multiplication. It does this by solving a norm equation in ideals of a quaternion algebra over a real quadratic field. The authors implement it and revisit the RM-CGL hash function of Charles, Goren and Lauter. They show that if the initial surface's algebraic description is known, RM-KLPT gives a second-preimage attack on the hash. Paths are much shorter (~p^3) than with KLPT^2, because a higher-dimensional Deuring correspondence exists in the RM setting. The paper also discusses cryptographic constructions that could be built on RM-KLPT.
eprint.iacr.orgpaperAdded 12 Oct 2026, published 9 Oct 2026๐ก๏ธ Security
Provable Subexponential Algorithms for Module-SIS and Module-LWEePrint preprint extending the DucasโEngelbertsโLoyer provable subexponential Gaussian sampler (built on Wagner's generalized birthday algorithm) to module matrices over power-of-two cyclotomic rings. It gives provable 2^{O(n/lnln n)}-time algorithms for Module-SIS and for decision and search Module-LWE using only the k+โ ring samples provided, plus sample-preserving scalar search-LWE and narrow Module-LWE variants. Separate heuristic estimates suggest these Wagner-style attacks do not reach the NIST security targets of ML-KEM and ML-DSA.
eprint.iacr.orgpaperAdded 12 Oct 2026, published 8 Oct 2026๐ก๏ธ Security
OmniCapBench: A Deep-Structured Evaluation Framework for Fine-Grained Audio-Visual CaptioningOmniCapBench is a benchmark of 786 densely annotated videos that evaluates audio-visual captioning in multimodal LLMs. Instead of scoring free-form captions, it asks models for sets of atomic, verifiable units across three tracks (entity references, visual shots, audio events). These are scored with deterministic constraint checks plus localized LLM-based semantic comparisons, which gives coverage, localization and stable scoring together. Tests on frontier MLLMs show strong local perception but weak long-horizon audio-visual reasoning, especially identity drift and cross-modal misalignment.
arxiv.orgpaperAdded 9 Oct 2026, published 8 Oct 2026๐ง AI
WOVEN: Weaving Visual World Modeling into Multimodal LLMsWOVEN is a training source and benchmark for visual transition reasoning in multimodal LLMs. It has 36,076 examples spanning 20 scene types, 5 action types and 8 reasoning types, built from rollouts of video-pretrained generative models. Evaluating 38 frontier MLLMs (including GPT-5.4 and Qwen3-VL-235B-A22B) shows systematic deficits that persist with scale. Training on WOVEN subsets of about 2,000 items improves 22 of 26 external benchmarks by up to 27.3 points, and WOVEN data can replace 30-50% of a task's own training data. The authors derive a recipe: select supervision by the reasoning operation it teaches rather than by scene or action, and prefer larger visual-state changes.
arxiv.orgpaperAdded 9 Oct 2026, published 8 Oct 2026๐ง AI
ReSI: Recursive Safety Improvement toward Resistant and Resilient AIReSI is a recursive safety improvement framework that automates rounds of safety alignment. Each round applies diverse red-teaming methods to the current target model, develops training recipes to fix the vulnerabilities found, and promotes the update with the largest safety gain among those passing a Pareto gate on capability retention. On four dense and mixture-of-experts models it matches or exceeds frontier models on in-distribution and out-of-distribution safety benchmarks. It cuts mean X-Teaming attack success rate from 86.01% to 31.45%, against 56.69% for the best frontier model (GPT-5.6 Luna), while largely preserving general capabilities.
arxiv.orgpaperAdded 9 Oct 2026, published 8 Oct 2026๐ง AI
ReSI: Recursive Safety Improvement toward Resistant and Resilient AIReSI is a recursive safety improvement framework. Each round runs diverse red-teaming methods against the current target model, develops training recipes for the vulnerabilities found, and promotes the update with the largest safety gain among those passing a Pareto gate on capability retention. Across four dense and mixture-of-experts models it cuts mean X-Teaming multi-turn jailbreak attack success from 86.01% to 31.45%, versus 56.69% for the best frontier model evaluated (GPT-5.6-Luna). It also beats alignment baselines on nearly all safety evaluations while largely preserving general capability. It frames the goals as resistance to known threats and resilience to unforeseen ones, following RยฒAI.
arxiv.orgpaperAdded 9 Oct 2026, published 8 Oct 2026๐ก๏ธ Security
A Closer Look at Agentic BBO: Benchmarking LLM Agents for Black-Box OptimizationIntroduces AgenticBBO-Bench, a benchmark for LLM-agent black-box optimization across synthetic functions, hyperparameter optimization, database tuning, chip design and molecular design under a unified finite-budget protocol. Agentic BBO beats direct LLM methods in all five domains and the best numerical optimizers in four. Ablations show extra numerical tools don't consistently help, task semantics help more than specific priors, and numerical optimizers can absorb gains from agent-found trajectories. A five-task frontier challenge evaluates seven LLMs under the Codex agent harness, with GPT-6 Astra and DeepSeek-V4.1-Flash on the performance-cost Pareto frontier.
arxiv.orgpaperAdded 9 Oct 2026, published 8 Oct 2026๐ง AI
Specialized Decision Models vs. General-Purpose LLMs: Benchmarking Jev Across Knowledge, Reasoning, and Multilingual TasksEvaluates Jev, a "System One" decision model that returns a choice among given options instead of generating text, on 13 multiple-choice benchmarks covering knowledge, reasoning and multilingual understanding. It is compared with 19 LLMs in frontier, representative and small tiers. Jev is competitive with frontier LLMs on knowledge and commonsense tasks, and best on MMLU-Redux and ARC-Challenge. It beats most representative LLMs and all small ones outside math, but is 17.7 points below the frontier median on MathQA and scores lower than all 19 LLMs there. This suggests specialized decision models can match general LLMs on knowledge-driven decisions but not on multi-step calculation.
arxiv.orgpaperAdded 9 Oct 2026, published 8 Oct 2026๐ง AI
PathTime-VLA: Path-Time Decoupling for Factorized Post-Training of Vision-Language-Action PoliciesPathTime-VLA reparameterizes Vision-Language-Action actions as a progress-indexed interaction path X(s) plus a positive interval-time profile that defines a monotone time law t(s). Geometry is thus decoupled from execution speed, so teleoperation timing artifacts don't contaminate the path target. A staged post-training recipe uses demonstrations and DAgger interventions for a target-domain prior, Speed-DQN to learn execution-speed multipliers from robot interaction, and Path-AWR to refine the diffusion path generator from rollout outcomes. On three tasks it reaches 58/60 successes versus 57/60 for BC+DAgger at fixed 1ร, with about 39โ52% shorter mean completion times on successful trials.
arxiv.orgpaperAdded 9 Oct 2026, published 8 Oct 2026๐ง AI
What Output-Only Review Cannot Verify: Study Contracts for Research AgentsProposes "study contracts" that bind an AI-generated study's declared experimental choices, run obligations and claim scope to recorded execution evidence, defining contract-relative verification as distinct from scientific truth. In a diagnostic with eight self-authored clean/mutated pairs, a deterministic fault-specific checker caught all eight mutations, while eighteen LLM judge aliases given metadata-filtered packages flagged 104 of 144 mutated cases (32 abstentions, 8 terminal failures). The authors stress the setting is deliberately information-asymmetric, not a verifier-quality comparison or reward-hacking result, and call for full-information comparisons, legitimate-adaptation controls and closed-loop agent evaluations.
arxiv.orgpaperAdded 9 Oct 2026, published 8 Oct 2026๐ง AI
Average-Case Hardness of Lattice Problems in Special Genera of Fixed RankThe paper proves, under GRH, a worst-case to average-case reduction inside any special genus of Hermitian lattices of fixed rank rโฅ2 over cyclotomic fields. It covers (H)SVP, HCVP, (ฮ)BDD, DSP and DGS, at a poly(d)ยทdet^{O_r(1)/d} loss in the approximation factor. The reduction is a random walk on the Kneser p-neighbour graph, and its fast mixing comes from spectral bounds on Hecke operators. It also gives a direct, tight security proof for a minimal Lattice Isomorphism Problem (LIP) based KEM. The proof rests on two assumptions: the KEM's lattice is indistinguishable from a random lattice of its genus, and ฮBDD is hard on that genus. This removes the need for the ad-hoc qฮโ(q+1)ฮ lattice and the tightness loss from the dense sublattice.
eprint.iacr.orgpaperAdded 11 Oct 2026, published 8 Oct 2026๐ก๏ธ Security
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