Hongtao Liu

Expansion of Sentiment Lexicon Based on Label Propagation

2019

Sentiment lexicons play a vital role in the field of sentiment classification. The existing sentiment lexicon has problems such as limited coverage and poor adaptability in the field. Building an sentiment lexicon with large coverage …

Contrastive Pre-training for Personalized Expert Finding

2023

Expert finding could help route questions to potential suitable users to answer in Community Question Answering (CQA) platforms. Hence it is essential to learn accurate representations of experts and questions according to the question text …