Survey on sentiment orientation analysis of texts

The basic flow of sentiment orientation analysis of texts was introduced,and the primary four aspects of current interesting researches were presented: subjectivity text recognition,sentiment orientation analysis method of texts,existing systems and evaluation methods,construction of corpus.Then three methods and their characteristics were summarized,i.e.simple statistics,machine learning and fine-grained sentiment relative analysis method.Merits and demerits of methods were analyzed from complexity,efficiency and applicable scope.Finally,the current achievements and shortages were summarized,and forecasted research perspectives were proposed including basic problem and implementation method of specific application.