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Yougang Lyu

4 accepted papers

2025

MACPO: Weak-to-Strong Alignment via Multi-Agent Contrastive Preference Optimization

ICLR 2025poster

As large language models (LLMs) are rapidly advancing and achieving near-human capabilities on specific tasks, aligning them with human values is becoming more urgent. In scenarios where LLMs outperform humans, we face a weak-to-strong alignment problem where we need to effectively align strong stud…

Cited by 3SourcePDFScholar
2024

KnowTuning: Knowledge-aware Fine-tuning for Large Language Models

EMNLP 2024main

Despite their success at many natural language processing (NLP) tasks, large language models still struggle to effectively leverage knowledge for knowledge-intensive tasks, manifesting limitations such as generating incomplete, non-factual, or illogical answers. These limitations stem from inadequat…

2023

Feature-Level Debiased Natural Language Understanding

AAAI 2023technical

Natural language understanding (NLU) models often rely on dataset biases rather than intended task-relevant features to achieve high performance on specific datasets. As a result, these models perform poorly on datasets outside the training distribution. Some recent studies address this issue by red…

2023

Multi-Defendant Legal Judgment Prediction via Hierarchical Reasoning

EMNLP 2023long findings

Multiple defendants in a criminal fact description generally exhibit complex interactions, and cannot be well handled by existing Legal Judgment Prediction (LJP) methods which focus on predicting judgment results (e.g., law articles, charges, and terms of penalty) for single-defendant cases. To addr…

Cited by 0SourcecodeScholar