Analysis method for implicit viewpoint emotion polarity

The invention provides an analysis method for implicit viewpoint emotion polarity, and relates to the field of social network analysis. The analysis method for the implicit viewpoint emotion polaritycomprises the following steps of S1, obtaining the comment data of a user, wherein the comment data comprises a comment text; S2, preprocessing the comment data, and dividing the comment paper into clauses; S3, extracting product characteristics from the comment data; S4, constructing a domain-dependent sentiment dictionary, and extracting an implicit viewpoint clause from the clauses based on thesentiment dictionary; S5, extracting a frequent pattern from the implicit viewpoint clause, extracting a feature pattern from the frequent pattern, extracting a feature implicit viewpoint pattern from the feature pattern, and analyzing the emotion polarity of the feature implicit viewpoint pattern; and S6, carrying out feature level emotion polarity analysis and comment level emotion polarity analysis. The method can accurately analyze the emotional polarity of the implicit viewpoints.