Sentiment expression analysis based on keyword hierarchy

摘要

A sentiment-scoring system may include a storage device configured to store a plurality of keywords, keyword groups, and a keyword group hierarchy. Each keyword may be associated with at least one of the keyword groups. The keyword hierarchy may include a hierarchy associated with each keyword group. The system may further include a processor in communication with the storage device. The processor may be configured to locate a plurality of sentiment expressions and identify a plurality of keywords present in the plurality of sentiment expressions. The processor may be further configured to determine at least one respective keyword group associated with each identified keyword and determine a sentiment score for each sentiment expression with respect to the associated keyword group within the keyword hierarchy. The processor may be further configured to provide at least one sentiment score to a display. A method and computer-readable medium may also be implemented.