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Liangjun Zang

4 accepted papers

2022

A Knowledge/Data Enhanced Method for Joint Event and Temporal Relation Extraction

ICASSP 2022accepted

Understanding temporal relations (TempRels) between events is an important task that could benefit many downstream NLP applications. This task inevitably faces the challenges of both a limited amount of high-quality training data and a very biased distribution of TempRels. These problems will substa…

Cited by 0SourceScholar
2022

ESimCSE: Enhanced Sample Building Method for Contrastive Learning of Unsupervised Sentence Embedding

COLING 2022main

Contrastive learning has been attracting much attention for learning unsupervised sentence embeddings. The current state-of-the-art unsupervised method is the unsupervised SimCSE (unsup-SimCSE). Unsup-SimCSE takes dropout as a minimal data augmentation method, and passes the same input sentence to a…

2022

Emotionflow: Capture the Dialogue Level Emotion Transitions

ICASSP 2022accepted

Emotion recognition in conversations (ERC) has attracted increasing interests in recent years, due to its wide range of applications, such as customer service analysis, health-care consultation, etc. One key challenge of ERC is that users' emotions would change due to the impact of others' emotions.…

Cited by 0SourceScholar
2022

Text Smoothing: Enhance Various Data Augmentation Methods on Text Classification Tasks

ACL 2022short

Before entering the neural network, a token needs to be converted to its one-hot representation, which is a discrete distribution of the vocabulary. Smoothed representation is the probability of candidate tokens obtained from the pre-trained masked language model, which can be seen as a more informa…