Papers by Weichang Liu
Addressing NER Annotation Noises with Uncertainty-Guided Tree-Structured CRFs (2023.emnlp-main)
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| Challenge: | Named entity recognition datasets are notorious for their noisy nature due to annotation errors, inconsistencies, and subjective interpretations. |
| Approach: | They propose a method that considers NER as a constituency tree parsing problem and uses a tree-structured Conditional Random Fields with uncertainty evaluation for integration. |
| Outcome: | The proposed model exhibits superb performance even in extreme scenarios with 90% annotation noise. |
TwT: Thinking without Tokens by Habitual Reasoning Distillation with Multi-Teachers’ Guidance (2025.findings-emnlp)
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| Challenge: | Large Language Models (LLMs) have made significant strides in problem-solving by incorporating reasoning processes, but this enhanced reasoning capability results in an increased number of output tokens during inference, leading to higher computational costs. |
| Approach: | They propose a method that internalizes explicit reasoning into the model’s habitual behavior through a Teacher-Guided compression strategy inspired by human cognition. |
| Outcome: | The proposed method reduces inference-time costs while maintaining high performance while preserving high quality and diversity of the distillation dataset. |