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Yuyang Dai

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#artificial intelligence Preprint Sep 2026

Seeing is not Enough: Vision-Language Models Perceive Evidence but Fail to Act

Vision-language models (VLMs) perform strongly on visual question answering benchmarks, yet often make decisions that contradict visual evidence they have already identified correctly. We distinguish perceptual failure, where relevant evidence is not recognized, from process failure, where recognized evidence fails to...

Yu-Yang Dai, Bo-Fei Huang, Hong-Bo Zhang et al. · 0 citations

Let Them Steal: Trapping Large Language Model Extraction Attacks with Knowledge Honeypot

Experiments show that Knowledge Trap reduces surrogate Agreement by 6.2\% on average without degrading legitimate-user accuracy, outperforming existing defenses that impose measurable user impact, and suggest that defending knowledge-space traversal is a practical direction for mitigating LLM extraction attacks.

Yu-Yang Dai, Yushun Dong · 1 citation
Review Jul 2026

Overview of FinMMEval 2026 Task 2: Multilingual Financial Short-Answer Question Answering

FinMMEval 2026 Task 2 evaluates short-answer financial question answering over multilingual evidence over multilingual evidence using document retrieval-augmented generation, cross-lingual evidence handling, structured prompting, answer compression, and validation strategies.

Zhuohan Xie, Xueqing Peng, Georgi N. Georgiev et al. · 1 citation
Review Jul 2026

Overview of FinMMEval 2026 Task 1: Multilingual Financial Multiple-Choice Question Answering

FinMMEval 2026 Task 1 evaluates multilingual financial multiple-choice question answering in English, Chinese, Arabic, and Hindi. The task tests whether systems can select the correct answer to finance questions involving domain terminology, numerical interpretation, and conceptual financial reasoning across languages...

Zhuohan Xie, Yu-Yang Dai, R. Elbadry et al. · 1 citation

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