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Sentiment classification for stock news

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6 Author(s)
Yang Gao ; Research Institute of Information Technology, Tsinghua National Laboratory for Information Science ana Technology, Department of Computer Science and Technology, Tsinghua University, Beijing, 100084, China ; Li Zhou ; Yong Zhang ; Chunxiao Xing
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Web news articles play an important role in stock market. Sentiment classification of news articles can help the investors make investment decisions more efficiently. In this paper, we implemented an approach of Chinese new words detection by using N-gram model and applied the result for Chinese word segmentation and sentiment classification. Appraisal theory was introduced into sentiment analysis and Naive Bayes, K-nearest Neighbor and Support Vector Machine were used as classification algorithms. Our method was used for a Chinese stock news data set. The best accuracy reaches 82.9% in all experiments. Additionally, we developed a prototype system to demonstrate our work.

Published in:

Pervasive Computing and Applications (ICPCA), 2010 5th International Conference on

Date of Conference:

1-3 Dec. 2010