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Exploiting Long-Term Dependency for Topic Sentiment Analysis
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DOI：10.1109/ACCESS.2020.3039963.png)
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Abstract
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Most existing unsupervised approaches to detect topic sentiment in social texts consider only the text sequences in corpus and put aside social dynamics, as leads to algorithm's disability to discover true sentiment of social users. To address the issue, a probabilistic graphical model LDTSM (Long-term Dependence Topic-Sentiment Mixture) is proposed, which introduces dependency distance and uses the dynamics of social media to achieve the perfect combination of inheriting historical topic sentiment and fitting topic sentiment distribution underlying in current social texts. Extensive experiments on real-world SinaWeibo datasets show that LDTSM significantly outperforms JST, TUS-LDA and dNJST in terms of sentiment classification accuracy, with better inference convergence, and topic and sentiment evolution analysis results demonstrate that our approach is promising.
Keywords:
Analytical models
Sentiment analysis
Biological system modeling
Licenses
Social networking (online)
Time series analysis
Probabilistic logic
Sentiment analysis
topic detection
probabilistic graphical model
long-term dependency
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