Papers by Wanpeng Zhang
Unexpected Phenomenon: LLMs’ Spurious Associations in Information Extraction (2024.findings-acl)
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Weiyan Zhang, Wanpeng Lu, Jiacheng Wang, Yating Wang, Lihan Chen, Haiyun Jiang, Jingping Liu, Tong Ruan
| Challenge: | Information extraction (IE) tasks require a limited number of example instructions to achieve effective performance. |
| Approach: | They propose two strategies to find spurious associations in large language models (LLMs) they use forward label extension and backward label validation to leverage extended labels to improve model performance. |
| Outcome: | The proposed methods improve performance on Chinese and English datasets and 9.55%, 11.42%, and 21.27% in F1 scores on SciERC, ACE05, and DuEE datasets. |
LLM-Based Explicit Models of Opponents for Multi-Agent Games (2025.naacl-long)
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| Challenge: | Existing approaches to model adversarial and cooperative interactions often focus on treating other agents as separate entities with their own intentions and strategies. |
| Approach: | They propose a model of opponents based on Large Language Models (LLMs) that constructs an individual model for each opponent and aligns these models working in synergy through a bi-level feedback-refinement framework. |
| Outcome: | The proposed model outperforms single-model approaches in multi-player deduction games, showing that it significantly enhances agents’ decision-making. |
AdaRefiner: Refining Decisions of Language Models with Adaptive Feedback (2024.findings-naacl)
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| Challenge: | Large Language Models (LLMs) have demonstrated significant success across various domains, but their application in complex decision-making tasks often necessitates intricate prompt engineering or fine-tuning. |
| Approach: | They propose a lightweight Adapter Language Model (LM) which automatically refines task comprehension based on feedback from RL agents. |
| Outcome: | The proposed framework enhances synergy between LLMs and RL feedback while maintaining generalization abilities and enhancing decision-making capabilities in downstream tasks. |