Generating Coherent Summaries with Textual Aspects

摘要

Initiated by TAC 2010, aspect guided summaries not only address specific user need, but also ameliorate content level coherence by using aspect information. This paper presents a full fledged system composed of three modules: finding sentence level textual aspects, modeling aspect based co herence with an HMM model, and selecting and ordering sentences with aspect information to generate coherent summaries. The evaluation results on the TAC 2011 da tasets show the superiority of aspect guided summaries in terms of both information coverage and textual coherence.