Paper: Answering Opinion Questions on Products by Exploiting Hierarchical Organization of Consumer Reviews

ACL ID D12-1036
Title Answering Opinion Questions on Products by Exploiting Hierarchical Organization of Consumer Reviews
Venue Conference on Empirical Methods in Natural Language Processing
Session Main Conference
Year 2012
Authors

This paper proposes to generate appropriate answers for opinion questions about prod- ucts by exploiting the hierarchical organiza- tion of consumer reviews. The hierarchy orga- nizes product aspects as nodes following their parent-child relations. For each aspect, the re- views and corresponding opinions on this as- pect are stored. We develop a new framework for opinion Questions Answering, which en- ables accurate question analysis and effective answer generation by making use the hierar- chy. In particular, we first identify the (ex- plicit/implicit) product aspects asked in the questions and their sub-aspects by referring to the hierarchy. We then retrieve the corre- sponding review fragments relevant to the as- pects from the hierarchy. In order to gener- ate appropriate answers from...