Multi-Document Summarization of News Articles Using an Event-Based Framework

Ou, S. Y. Khoo, C. S. G. Goh, D. H.

Aslib proceedings 2006 58 (3)197-217
(ReLIS:jul:onkfhj:y:2006:v:58:i:3:p:197-217)

Abstract:

Purpose - The purpose of this research is to develop a method for automatic construction of multi-document summaries of sets of news articles that might be retrieved by a web search engine in response to a user query. Design/methodology/approach - Based on the cross-document discourse analysis. an event-based framework is proposed for integrating and organizing information extracted from different news articles. It has a hierarchical structure in which the summarized information is presented at the top level and more detailed information given at the lower levels. A tree-view interface was implemented for displaying a multi-document summary based on the framework. A preliminary user evaluation was performed by comparing the framework-based summaries against the sentence-based summaries. Findings - In a small evaluation. all the human subjects preferred the framework-based summaries to the sentence-based summaries. It indicates that the event-based framework is ail effective way to summarize a set of news articles reporting an event or a series of relevant events. Research limitations/implications - Limited to event-based news articles only, not applicable to news critiques and other kinds of news articles. A summarization system based on the event-based framework is being implemented. Originality/value - An event-based framework for summarizing sets of news articles was developed and evaluated using a tree-view interface for displaying Such summaries.

Keywords: Servicios de Información ; Evaluación
Pages: 197-217
Volume: 58
Year: 2006
Issue: 3

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