Academic Commons

Presentations (Communicative Events)

A Formal Model for Information Selection in Multi-Sentence Text Extraction

Filatova, Elena; Hatzivassiloglou, Vasileios

Selecting important information while accounting for repetitions is a hard task for both summarization and question answering. We propose a formal model that represents a collection of documents in a two-dimensional space of textual and conceptual units with an associated mapping between these two dimensions. This representation is then used to describe the task of selecting textual units for a summary or answer as a formal optimization task. We provide approximation algorithms and empirically validate the performance of the proposed model when used with two very different sets of features, words and atomic events.


  • thumnail for filatova_hatzivassiloglou_04b.pdf filatova_hatzivassiloglou_04b.pdf application/pdf 92.8 KB Download File

More About This Work

Academic Units
Computer Science
COLING '04 Proceedings of the 20th international conference on Computational Linguistics
Published Here
May 30, 2013
Academic Commons provides global access to research and scholarship produced at Columbia University, Barnard College, Teachers College, Union Theological Seminary and Jewish Theological Seminary. Academic Commons is managed by the Columbia University Libraries.