Patent ID: 7822701
Filing Date: 2010-10-26
Classification: G06F

Abstract:
1. A computer-implemented lexicon generation method comprising: accessing a seed list corresponding to one of a plurality of sentiment categories, wherein the seed list comprises a plurality of seed terms which are affect bearing terms corresponding to the one of the sentiment categories; accessing a plurality of text items; providing a seed vector comprising a plurality of values for respective ones of the text items, and wherein the values individually correspond to a number of occurrences of all of the seed terms of the seed list in a respective one of the text items; providing a plurality of content vectors for respective ones of a plurality of content terms, wherein an individual one of the content vectors comprises a plurality of values for respective ones of the text items, and wherein the values of one of the content vectors individually correspond to a number of occurrences of the respective content term of the one of the content vectors in a respective one of the text items; comparing individual ones of the content vectors with respect to the seed vector; and using the comparing, selecting at least one of the content terms as a term of a lexicon in sentiment analysis of text.