Inverting Semantic Structure Under Open Domain Opinion Mining

We explore the semantic structure of how opinions on products and services are expressed in blogs and forums in the form of user needs. To optimize the efficiency of content delivery, we invert the product feature structure and propose a specific way to represent the user opinion content in forums and blogs, focusing on user needs about product qualities and features. The content is subject to inversion so that these needs become primary entry points for browsing and search. User need is defined syntactically; semantic and concept structure means for such user needs are developed. The system is subject to evaluation with respect to coverage and information access efficiency.