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Xiaosu Wang

3 accepted papers

2023

Adaptive Structure Induction for Aspect-based Sentiment Analysis with Spectral Perspective

EMNLP 2023long findings

Recently, incorporating structure information (e.g. dependency syntactic tree) can enhance the performance of aspect-based sentiment analysis (ABSA). However, this structure information is obtained from off-the-shelf parsers, which is often sub-optimal and cumbersome. Thus, automatically learning ad…

Cited by 0SourceScholar
2023

KeFVP: Knowledge-enhanced Financial Volatility Prediction

EMNLP 2023long findings

Financial volatility prediction is vital for indicating a company's risk profile. Transcripts of companies' earnings calls are important unstructured data sources to be utilized to access companies' performance and risk profiles. However, current works ignore the role of financial metrics knowledge…

Cited by 0SourceScholar
2022

Composition-based Heterogeneous Graph Multi-channel Attention Network for Multi-aspect Multi-sentiment Classification

COLING 2022main

Aspect-based sentiment analysis (ABSA) has drawn more and more attention because of its extensive applications. However, towards the sentence carried with more than one aspect, most existing works generate an aspect-specific sentence representation for each aspect term to predict sentiment polarity,…