Papers by Huiyuan Chen
Mitigating Judgment Preference Bias in Large Language Models through Group-Based Polling (2026.findings-acl)
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| Challenge: | Large Language Models (LLMs) are used as automatic evaluators to provide accurate and reliable assessments. |
| Approach: | They propose a framework that integrates LLM-based judgment models into a multi-agent system and simulates the interactive client-server polling mechanism. |
| Outcome: | The proposed framework outperforms supervised models trained on annotated judgment data while requiring no human-labeled annotations. |
EduMARS: Can Vision-Language Models Grade Like Teachers? Benchmarking Multimodal, Rubric-Based Assessment on Chinese K-12 Answers (2026.findings-acl)
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| Challenge: | Existing benchmarks for automated grading of student work fail to evaluate real student responses . existing models fail to assess real student work, especially on cognitively demanding tasks . |
| Approach: | They propose a multimodal benchmark for rubric-aligned evaluation of real Chinese K-12 student answers. |
| Outcome: | The proposed model improves performance and interpretability of existing models on EduMARS . existing models fail to perform on real-world, cognitively demanding tasks, authors say . |
Enhancing Hyperbolic Knowledge Graph Embeddings via Lorentz Transformations (2024.findings-acl)
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| Challenge: | Existing methods for knowledge graph embedding rely on tangent approximation and are not fully hyperbolic. |
| Approach: | They propose a fully hyperbolic KGE method that represents entities as points in the Lorentz model and represents relations as the intrinsic transformation. |
| Outcome: | The proposed method captures various types of relations including hierarchical structures. |
Lost in the Context: Insufficient and Distracted Attention to Contexts in Preference Modeling (2025.acl-long)
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Shihan Dou, Jiayi Chen, Chenhao Huang, Feng Chen, Wei Chengzhi, Huiyuan Zheng, Shichun Liu, Yan Liu, Chenxiao Liu, Chao Xin, Lin Yan, Zongzhang Zhang, Tao Gui, Qi Zhang, Xuanjing Huang
| Challenge: | Existing reward models concatenate contexts and responses, but they often ignore crucial segments of the context that are important for evaluating the response quality. |
| Approach: | They propose a reward model that evaluates the response quality based on a given context and assigns a rewards reward. |
| Outcome: | The proposed framework significantly improves preference modeling by increasing attention to relevant information within the context and achieves better generalizability. |