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Yi Chang

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Preprint Sep 2026

CCRV-Bench: Constraint-Based Evaluation of Causal Reasoning in Vision-Language Models

Vision-language models (VLMs) have demonstrated excellent performance in visual tasks, but their visual causal reasoning capabilities still lack reliable evaluation. Existing evaluations struggle to distinguish whether a model is performing causal reasoning based on visual evidence or relying on statistical correlation...

Lin-Yuan Gao, Yuan Wu, Yi Chang · 0 citations
#artificial intelligence Preprint Sep 2026

More Choices, Fewer Decisions: Ordinal-Scale Bias in JEV-like Direct-Decision Models

Direct-decision models turn text into low-latency structured labels and scores, making them attractive for classification and automatic evaluation. Yet reliability requires more than accuracy: a model must also use the ordinal decision scale supplied by the user faithfully. We analyze JEV~1.13 and three open KEV models...

Tian-Xiang Gao, Jin-Zhe Li, Zhiyuan Li et al. · 0 citations
Preprint Aug 2026

How Agents Represent Humans: Human-Directed Stereotypes in an Open Agent Social Network

It is found that competence dominates human-directed evaluations, while many \textit{other} attributions describe humans as epistemic, cultural, or embodied subjects, and suggest that bias in agent societies should be studied not only as isolated model output, but also as a discourse process.

Huang Xu, Yuan Wu, Yi Chang · 1 citation
#artificial intelligence Preprint Sep 2026

What if LLMs Ate Their Words: Causal History Effects in Multi-Turn Interaction

Multi-turn interaction creates a feedback process in which an LLM's previous responses become context for later behavior. Prior work shows substantial multi-turn degradation and that assistant-generated history can affect later behavior. However, it remains unclear how these effects manifest across models, tasks, turns...

Jinnan Li, Zheren Fu, Yue Wang et al. · 0 citations
Preprint Aug 2026

Beyond Blind Compliance: Benchmarking Task Verification in OCR Reasoning

VeriOCRBench, a 1,800-sample human-verified benchmark built from source images drawn from 8 OCR-related datasets and spanning 8 real-world image domains, with controlled, image-grounded diagnostic tasks, is introduced, exposing a critical reliability gap in current OCR reasoning systems.

Yue Zhou, Yuan Wu, Yi Chang · 0 citations
#artificial intelligence Preprint Sep 2026

RPCBench: A Benchmark for Proactive Premise Critique in LLM-based Recommendation

RPCBench, a benchmark for evaluating Recommender-Premise Critique: the ability to detect, diagnose, and properly handle faulty premises in natural-language recommendation requests, is introduced and a fine-grained evaluation framework that measures proactive detection, error localization, post-detection handling strate...

Zhong-Ru Chen, Yuan Wu, Yi Chang · 0 citations
#artificial intelligence Preprint Aug 2026

MMPCBench: Benchmarking Multimodal Large Language Models on Proactive Critique of Flawed Inputs

This work proposes MMPCBench, a comprehensive framework for evaluating MLLMs' proactive critique competence, which adopts a hierarchical evaluation protocol to measure models' error detection, diagnosis and resolution performance, and applies alignment-aware metrics to assess the coherence between internal reasoning an...

Jin-Zhe Li, Geng-Xu Li, Jinnan Li et al. · 0 citations
#natural language process... Preprint Aug 2026

OCR-MetaReasoning Benchmark: Evaluating the Meta-Reasoning Ability of MLLMs in Text-Rich Image Understanding

Experiments with representative closed-source and open-source MLLMs show that OCR-grounded meta-reasoning remains far from saturated: models struggle with visible-rule application and layout-sensitive inference, while process-compliant rationales can accompany incorrect final answers under exact-match evaluation.

Geng-Xu Li, Yuan Wu, Yi Chang · 0 citations
Preprint Aug 2026

CD-LoRA: Consistency-Driven Low-Rank Adaptation for Multi-Task Fine-Tuning

By eliminating routers entirely, CD-LoRA employs a consistency-driven alignment mechanism to enforce representation congruence across tasks in a shared low-rank space, which fosters robust, task-agnostic features without explicit partitioning overhead.

Qian Zha, Jinda Liu, Yuan Wu et al. · 2 citations
Preprint Aug 2026

CaSKG: Counterfactual-Causal Skill Graphs for Scalable Agent Skill Retrieval

CaSKG, a counterfactual-causal skill graph framework that calibrates procedural relations before retrieval, is proposed, position edge-confidence calibration as an effective route to compact and executable skill retrieval at scale.

Zhiyuan Li, Lin-Yuan Gao, Xue-Chun Ding et al. · 1 citation
Preprint Aug 2026

Thinking vs. NoThinking: Towards Interpreting Reasoning Mechanisms of Large Language Models via Sparse Autoencoders

This work applies Top-K Sparse Autoencoders to the intermediate representations of DeepSeek-R1-Distill-Qwen-7B and examines the model's divergent behaviors across math-solving tasks of three distinct difficulty levels, identifying a clear distinction in how the model functions under two reasoning modes.

Bo Cheng, Qiaolin Lu, Yi Chang et al. · 0 citations

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