Paper: Opinion Mining using Econometrics: A Case Study on Reputation Systems

ACL ID P07-1053
Title Opinion Mining using Econometrics: A Case Study on Reputation Systems
Venue Annual Meeting of the Association of Computational Linguistics
Session Main Conference
Year 2007
Authors

Deriving the polarity and strength of opinions is an important research topic, attracting sig- nificant attention over the last few years. In this work, to measure the strength and po- larity of an opinion, we consider the eco- nomic context in which the opinion is eval- uated, instead of using human annotators or linguistic resources. We rely on the fact that text in on-line systems influences the behav- ior of humans and this effect can be observed using some easy-to-measure economic vari- ables, such as revenues or product prices. By reversing the logic, we infer the semantic ori- entation and strength of an opinion by tracing the changes in the associated economic vari- able. In effect, we use econometrics to iden- tify the “economic value of text” and assign a “dollar value” t...