Scoring explanatoriness of a sentence and ranking for explanatory opinion summary

Abstract

On the online reviews, one of the important types of information is the sentiment explanation which expresses a content users generated. Sentiment explanation is a sentence that expresses detailed reason of sentiment (i.e., “explanatoriness”) and plays an important role in opinion summarization. In this paper, we propose and study a method for scoring the explanatoriness of a sentence. A first method is to adapt an existing method and a second method based on a probabilistic model. Experimental results show that the proposed methods are effective, presenting a better value for a state of the art sentence ranking method for standard text summarization.