Systems and Methods for Automatic Understanding of Consumer Evaluations of Product Attributes from Consumer-Generated Reviews
First Claim
1. In a computing environment, a method of extracting from a pool of written reviews of products within a product category the words which describe attributes pertaining to products within that category, comprisingdividing the written reviews into sentences using a sentence segmenter;
- tokenizing the words within each sentence;
generating a parse tree for each sentence and extracting nouns, noun-noun combinations, and adjective-noun combinations;
quantifying the frequency of each such noun, noun-noun combination, and adjective-noun combination; and
retaining all high-frequency nouns, noun-noun combinations, and adjective-noun combinations.
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Abstract
Consumer-generated product reviews are a mainstay of electronic commerce and a key factor in the consumer decision process. A shopper'"'"'s typical online purchase decision can involve tedious reading of multiple reviews written by previous purchasers in order to find and compare products for purchase. Disclosed herein is an automated system, and associated methods, that identifies the product attributes discussed in consumer reviews and summarizes consumer sentiment for each attribute for each product thus, offering immense value to consumers and retailers alike.
42 Citations
18 Claims
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1. In a computing environment, a method of extracting from a pool of written reviews of products within a product category the words which describe attributes pertaining to products within that category, comprising
dividing the written reviews into sentences using a sentence segmenter; -
tokenizing the words within each sentence; generating a parse tree for each sentence and extracting nouns, noun-noun combinations, and adjective-noun combinations; quantifying the frequency of each such noun, noun-noun combination, and adjective-noun combination; and retaining all high-frequency nouns, noun-noun combinations, and adjective-noun combinations. - View Dependent Claims (2, 3)
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4. In a computing environment, for a sentence extracted from a written product review, a method of determining the probability that the sentence is about a specific attribute, comprising
applying at least one mathematical model which correlates the presence and position of words within the sentence to the probability that the sentence is about that specific attribute.
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11. In a computing environment, a method of determining the polarity of a sentiment expressed in a written sentence or sentence segment which addresses a product attribute, comprising
analyzing the sentence or sentence segment with one or more mathematical models that predict the likelihood that the sentence or sentence segment expresses a sentiment of a selected polarity.
Specification