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Peichao Lai

4 accepted papers

2025

Enhancing Unsupervised Sentence Embeddings via Knowledge-Driven Data Augmentation and Gaussian-Decayed Contrastive Learning

ACL 2025long

Recently, using large language models (LLMs) for data augmentation has led to considerable improvements in unsupervised sentence embedding models. However, existing methods encounter two primary challenges: limited data diversity and high data noise. Current approaches often neglect fine-grained kno…

2025

Improving Low-Resource Sequence Labeling with Knowledge Fusion and Contextual Label Explanations

EMNLP 2025

Sequence labeling remains a significant challenge in low-resource, domain-specific scenarios, particularly for character-dense languages. Existing methods primarily focus on enhancing model comprehension and improving data diversity to boost performance. However, these approaches still struggle with

2024

Quantum-inspired Language Model with Lindblad Master Equation and Interference Measurement for Sentiment Analysis

NAACL 2024long

Quantum-inspired models have demonstrated superior performance in many downstream language tasks, such as question answering and sentiment analysis. However, recent models primarily focus on embedding and measurement operations, overlooking the significance of the quantum evolution process. In this…

Cited by 0SourcePDFScholar
2022

PCBERT: Parent and Child BERT for Chinese Few-shot NER

COLING 2022main

Achieving good performance on few-shot or zero-shot datasets has been a long-term challenge for NER. The conventional semantic transfer approaches on NER will decrease model performance when the semantic distribution is quite different, especially in Chinese few-shot NER. Recently, prompt-tuning has…

Cited by 13SourcePDFScholar