| As one of many applications of Web2.0,the microblog owns a huge amount of users,and its information ecosystem is relatively mature,the microblog users create hundred millions of informations every day,therefore it can provide abundant data for opinion mining and public opinion analysis.The microblog contains texts,emoticons,pictures and links,the text sentiment tendency was as the whole microblog sentiment tendency in the previous microblog sentiment analysis,ignored the other elements of microblog.Emoticons as the same important sentimental element as texts in microblog,they has been used widely when the microblog users created,to assist with texts sentiment which cannot express fully on account of words limit rule.Therefore,it should pay attention to the emoticons sentiment tendency,as well as emoticons have an effect on the texts sentiment tendency when they are together.This study firstly does literature review for relevant researches,clear the research status of the texts sentiment analysis of microblog and the emoticons sentiment expression and the effects of emoticons to texts sentiment analysis,secondly explains effects types of emoticons to texts sentiment tendency,including the reinforce effect and reduction effect,then directs at the current situation of there is no emoticons sentiment value,calculating the sentiment value of texts which be together with emoticons via texts sentiment analysis,also calculating the emoticons sentiment value by texts co-occur with the help of the mathematic models,makes emoticons and its sentiment value constitute emoticons sentiment value set,finally makes the emoticons sentiment value compare against the sentiment value of texts which be together with emoticons,judges and analyses the effects.The consequence proves that emoticons do have an effect on the texts sentiment tendency,it should be considered in future sentiment analysis of microblog,in order to improve the accuracy of the microblog sentiment analysis. |
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