Search Results for author: Xichen Shang

Found 4 papers, 2 papers with code

Self-Adaptive Reconstruction with Contrastive Learning for Unsupervised Sentence Embeddings

no code implementations23 Feb 2024 Junlong Liu, Xichen Shang, Huawen Feng, Junhao Zheng, Qianli Ma

However, due to the token bias in pretrained language models, the models can not capture the fine-grained semantics in sentences, which leads to poor predictions.

Contrastive Learning Sentence +2

Preserving Commonsense Knowledge from Pre-trained Language Models via Causal Inference

1 code implementation19 Jun 2023 Junhao Zheng, Qianli Ma, Shengjie Qiu, Yue Wu, Peitian Ma, Junlong Liu, Huawen Feng, Xichen Shang, Haibin Chen

Intriguingly, the unified objective can be seen as the sum of the vanilla fine-tuning objective, which learns new knowledge from target data, and the causal objective, which preserves old knowledge from PLMs.

Attribute Causal Inference

Pair-Based Joint Encoding with Relational Graph Convolutional Networks for Emotion-Cause Pair Extraction

1 code implementation4 Dec 2022 Junlong Liu, Xichen Shang, Qianli Ma

Emotion-cause pair extraction (ECPE) aims to extract emotion clauses and corresponding cause clauses, which have recently received growing attention.

Emotion-Cause Pair Extraction

A Span-based Dynamic Local Attention Model for Sequential Sentence Classification

no code implementations ACL 2021 Xichen Shang, Qianli Ma, Zhenxi Lin, Jiangyue Yan, Zipeng Chen

Sequential sentence classification aims to classify each sentence in the document based on the context in which sentences appear.

Classification Sentence +1

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