الباحثون

Wei Wang

المنشورات 21

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How Narrative Wrapping Affects LLM Refusal: A Cross-Language Benchmark and Defense

Zhankai Ye, Yanning Wang, Yukai Jin وآخرون · 2026

Safety-aligned language models often refuse a harmful request stated directly but answer the same request inside a role-play or narrative wrapper. We measure this vulnerability across languages and registers: attack success on Qwen3-1.7B is already 89.4% in English and 93.0% in modern Chinese, and reaches 95.7% in Clas …

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Representation--Behavior Alignment for Explainable Weakly-Supervised Video Anomaly Detection

Chao Huang, Pengfei Wei, Kaige Li وآخرون · 2026

Multimodal Large Language Models (MLLMs) provide a natural way to make video anomaly detection more explainable. However, their final decisions do not always fully use the discriminative information contained in their hidden states, an issue we refer to as representation--behavior misalignment. We decompose this gap in …

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RoMod: Temporal Routing Modulation via Mixture-of-Experts for Video Anomaly Detection

Chao Huang, Pengfei Wei, Benfeng Wang وآخرون · 2026

Intermediate-layer features from multimodal large language models have shown strong potential for video anomaly detection (VAD), yet the origin of their discriminative power remains unclear. We study this question using sparse mixture-of-experts (MoE) models, whose explicit expert structure and sparse activation make t …

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Robust Ensemble Guidance for Scientific Inverse Problems

Zixiang Li, Wei Wang, Yunchao Wei وآخرون · 2026

Ensemble guidance combines pretrained diffusion priors with black-box forward models to solve inverse problems without differentiating through the physical simulator. However, observation coordinates with large predictive spread or extreme residuals can dominate the ensemble correction, degrading reconstruction accurac …

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Blocking at the Boundary: Auditing Long-Horizon Agents against Staged Prompt Injection

Jingkai Liu, Yufei Han, Xiaoting Lyu وآخرون · 2026

Long-horizon agents consume external content, invoke tools, and modify persistent state. Indirect prompt injection can exploit task-specific context, propagate across causally connected stages, and alter a consequential action while the workflow continues; we term this staged prompt injection. We build an automated, fe …

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From Expression to Reaction: Role-aware Visual Transfer and Stimulus-guided Reasoning for Interlocutor Emotion Recognition

Wei Wang, Zhaowu Li, Jianjie Luo وآخرون · 2026

In this paper, we propose a Role-aware Stimulus-guided (RASG) framework for interlocutor emotion recognition, which predicts listener emotions from listener-only videos and speaker-only audios. RASG consists of Role-aware Visual Transfer (RVT) and Stimulus-guided Boundary Reasoning (SBR) modules, which address supervis …

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Continual Graph Memory for Mathematical Research Agents

Junyi Zhang, Jinxi Yu, Eric Hanchen Jiang وآخرون · 2026

Using frontier agent harnesses to tackle mathematical research problems has emerged as an effective means of advancing mathematics. However, solving frontier problems in mathematics may require a massive number of agents working in parallel for extended periods to construct proofs, thereby generating an enormous volume …

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My FAULT: Self-Diagnosis as Credit Assignment in Self-Evolving Agentic Reinforcement Learning

Yihua Zhu, Qianying Liu, Weixu Qiao وآخرون · 2026

Agentic reinforcement learning (RL) has emerged as a powerful approach for training large language model agents on multi-step tasks, yet reliance on terminal outcome rewards creates two credit-assignment problems, particularly in long-horizon tasks. First, same-outcome rollout groups provide no learning signal from ter …

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LLM-Assisted Automatic Security Proofs for Cryptographic Protocols: How Far Are We?

Tianjian Liu, Shicheng Feng, Jin'ao Shang وآخرون · 2026

Large language models (LLMs) have shown strong potential for assisting software and security analysis tasks, yet their effectiveness in cryptographic symbolic protocol verification remains insufficiently understood. In this paper, we conduct the first systematic evaluation of the capability of state-of-the-art LLMs in …

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WorldAttention: An Efficient Attention Architecture for Interactive Video World Models

Zeyu Zhang, Jinyuan Mao, Dakai An وآخرون · 2026

Leveraging the paradigm of autoregressive diffusion, text-conditioned interactive video world models aim to simulate temporally coherent environments guided by textual instructions. While enabling low-latency, long-duration generation is pivotal for embodied AI and simulation-based planning, current frameworks primaril …

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LoopLUT: 3D Lookup Tables with Progressive Region Refinement for Real-Time 4K Image Enhancement

Yang Ye, Jiajun Ma, Chen Wu وآخرون · 2026

Color enhancement of 4K images must meet a quality target under a tight compute budget. Three-dimensional lookup tables (3D LUTs) dominate real-time enhancement because they decide at low resolution and apply a per-pixel lookup at full resolution. A single global LUT, however, is spatially invariant, so an underexposed …

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Seeing Parts, Reasoning about Worlds: Visual Inference under Partial Observation

Wei Wang, Wenqiao Zhang, Yutong Lin وآخرون · 2026

World modeling under partial observation requires reasoning about the complete worlds that remain compatible with limited visual evidence. Occluded objects and unseen regions can leave several world states possible; additional views can exclude alternatives and strengthen the conclusions supported by the observations. …

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TempQ-Jail: Query-Constrained Candidate Ranking for Text-to-Video Jailbreak Attacks

Tianmeng Fang, Jiancheng Wang, Chen Wang وآخرون · 2026

Existing text-to-video (T2V) jailbreak methods mainly seek more effective or stealthier attack candidates. In guarded T2V systems, however, video generation and security evaluation are costly, so an attacker often cannot test a large candidate pool. We therefore formulate T2V jailbreak as a query-constrained candidate …

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SafeStage: Evaluating Safety Before, During, and After Vision-Language-Conditioned Robot Manipulation

Jinzhu Luo, Qi Zhang, Wei Wang وآخرون · 2026

Vision-language-conditioned robot policies integrate perception, language understanding, and control for general-purpose manipulation. However, existing evaluations often focus on task success, isolated physical constraints, semantic refusal, or realized physical damage, providing limited insight into where safety fail …

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DeepSeek-V4.1-Flash: Pushing the Limits of KV Cache Compression

DeepSeek-AI, Anyi Xu, B. Li وآخرون · 2026

The widespread adoption of long-horizon agents has made model workloads increasingly input-heavy. Although prior work has substantially reduced the cost of long-context computation, prefill remains computationally expensive, and large KV caches continue to strain HBM and SSD capacity and data-transfer bandwidth. Togeth …

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SAFARI: An Industrial Benchmark for LLM-Assisted Hazard Analysis and Risk Assessment

Chenxi Wu, Zimu Wang, Haiyang Zhang وآخرون · 2026

Large language models (LLMs) are increasingly considered for safety-critical engineering, yet their reliability in regulated functional-safety workflows remains underexplored. We introduce SAFARI (Safety-Aware Functional Automotive Risk Inference), the first industrial benchmark for LLM-assisted automotive Hazard Analy …

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RESKILL: Explicit Failure Attribution and Structured Repair for Interactive Language Agents

Mengyi Deng, Xin Li, Duyi Pan وآخرون · 2026

Language agents increasingly rely on reusable skills, but post-failure repair is often handled by opaque one-shot reflection: a model generates a skill patch without explicitly maintaining how failure explanations relate to candidate repairs or how unsuccessful retests should influence later edits. We introduce RESKILL …

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