Paper: Title Generation with Quasi-Synchronous Grammar

ACL ID D10-1050
Title Title Generation with Quasi-Synchronous Grammar
Venue Conference on Empirical Methods in Natural Language Processing
Session Main Conference
Year 2010
Authors

The task of selecting information and render- ing it appropriately appears in multiple con- texts in summarization. In this paper we present a model that simultaneously optimizes selection and rendering preferences. The model operates over a phrase-based represen- tation of the source document which we ob- tain by merging PCFG parse trees and depen- dency graphs. Selection preferences for in- dividual phrases are learned discriminatively, while a quasi-synchronous grammar (Smith and Eisner, 2006) captures rendering prefer- ences such as paraphrases and compressions. Based on an integer linear programming for- mulation, the model learns to generate sum- maries that satisfy both types of preferences, while ensuring that length, topic coverage and grammar constraints are met. Experiments on h...