基于SVM的微博情感傾向性分析研究
[Abstract]:With the advent of the Web2.0 era, the development of the network has entered all areas of people's lives. In recent years, the emergence of Weibo has made life more abundant. The growth of Weibo's influence has attracted a large number of scholars to study Weibo customers in depth, and emotional word recognition and emotional analysis have become an important topic. In Weibo's open platform, the function is to access information, or to post information to others to see. At the same time, with the diversification of published information, new problems arise, such as the emergence of emotional neologisms and the analysis of emotional polarity of Weibo sentences. The emergence of new words produces a lot of "scattered strings" and "fragments" that are difficult to recognize for Chinese word segmentation. The text that distinguishes the emotional tendency of Weibo guest in emotional analysis belongs to the judge of positive, negative and neutral. The emotional tendency of these texts can master the emotions of netizens, not only have certain commercial value, but also benefit the society, but also help us to perfect in the fields of public opinion monitoring, vocabulary updating, natural language processing and so on. Tens of thousands of Chinese Weibo users refresh their information every day, and the generation of Weibo emotional words and the analysis of polarity all arise. It is very important and urgent to do a good job in understanding the attitude of users. Through the data provided by the experiment, emotional word recognition through conditional random field, part-of-speech tagging, combining with the characteristics of context information, the feature vector is constructed, and the training model of corpus data is constructed and tested. Finally, the correct (Precision), recall rate (Recall) and F-value of emotional words are obtained. Effective and correct recognition of Weibo emotional words is the premise and basis for judging the emotional tendency of Weibo text. Based on the knowledge of Chinese information processing and natural language, combined with the laboratory research on the discovery of emotional neologisms and the analysis of emotional tendencies, this paper discusses the various relationships related to emotional tendencies. It is based on the existing analysis of Weibo emotional tendency judgment. The ultimate purpose of this paper is to improve the accuracy, recall rate and F-value of the data results, so as to lay a foundation for further research. The experimental data are different from the Weibo corpus given by the project, and the training and test data of emotional word recognition and emotional tendency analysis are different. The experimental results also verify that the method used in this paper is feasible. The experimental results show that the correct rate of emotional word recognition is 34.21%, the recall rate is 0.11%, and the F value is 0.002%. The results show that the overall recognition rate is not high, but it also lays a good foundation for the next step. The correct rate, recall rate and F value of emotional sentence polarity discrimination were 84.87%, 65.18% and 77.27%, respectively. the emotional tendency of Chinese Weibo was preliminarily explored in this study.
【學(xué)位授予單位】:中原工學(xué)院
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2014
【分類號(hào)】:TP391.1;TP393.092
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