System and Method for Classifying Text Sentiment Classes Based on Past Examples

摘要

A passage sentiment classifier that can be used to assign a score that indicates the polarity and magnitude of sentiment expressed by a piece of text using information about similar passages. A passage of text may be a few words, a sentence, a paragraph or an entire document. The invention described classifies automatically passages by first looking up the most similarly classified passage in a storage system, which contains passages that have been classified manually by a human.