الباحثون

Jin Wang

المنشورات 6

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The Model Plants the Trigger: Answer-Side Backdoor Attacks in Multi-Turn Large Language Models

Yibo Zhang, Tianrong Guan, Liang Lin وآخرون · 2026

Safety alignment in Large Language Models (LLMs) remains vulnerable to backdoor attacks. Existing LLM backdoors are almost all input-centric: activation depends on explicit trigger patterns in the user input, so modern guardrails are built to sanitize the input space. We challenge this assumption with a novel answer-si …

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Beyond In-Distribution Preservation: Recovering Generalization in Quantized VLAs via Vulnerability-Oriented Tuning

Shen Ruan, Wenchang Gao, Jin Wang وآخرون · 2026

Post-training quantization has been shown to preserve VLA performance under standard evaluation conditions, but whether it preserves the full-precision model's robustness and generalization remains underexplored. In this study, we systematically study the robustness and generalization of post-quantized VLA policies und …

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RoboAssist: Interactive Human-Humanoid Planning for Long-Horizon Surgical Assistance

Jingwei Jia, Keyu Zhou, Jiewei Wang وآخرون · 2026

Long-horizon surgical assistance requires humanoid robots to coordinate with evolving human activities while maintaining safety across planning and execution. We present RoboAssist, an agent-based framework for interactive human-humanoid planning that integrates workflow reasoning, task coordination, and cross-layer sa …

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TabJoinBench: A Benchmark for Joinable Table Discovery

Join discovery aims to identify tables from large data repositories that can augment a query table with complementary information, enabling downstream tasks such as data exploration, feature engineering, and business intelligence. Although numerous join discovery methods have been proposed, existing studies rely on met …

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Staircase Policy: Streaming Inference for World-Action Models with Large Action Chunks

Guoheng Sun, Chen Chen, Jin Wang وآخرون · 2026

World-Action Models (WAMs) improve robotic manipulation by conditioning action generation on predicted future observations, but future prediction adds further inference overhead to already expensive iterative action generation. Action chunking can amortize this cost over multiple actions, yet performance degrades over …

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Scope-WM: Scoped Computation for Efficient Visual World Models

Chunzheng Li, Zesheng Jia, Hongda Zhang وآخرون · 2026

Visual world models enable robotic planning by predicting future observations, but dense latent-state propagation and sample-intensive trajectory optimization incur high inference latency and peak memory usage, limiting real-time deployment on resource-constrained platforms. Existing sparse world-model acceleration met …

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