Broadcast News Gisting Using Lexical Cohesion Analysis [chapter]

Nicola Stokes, Eamonn Newman, Joe Carthy, Alan F. Smeaton
2004 Lecture Notes in Computer Science  
In this paper we describe an extractive method of creating very short summaries or gists that capture the essence of a news story using a linguistic technique called lexical chaining. The recent interest in robust gisting and title generation techniques originates from a need to improve the indexing and browsing capabilities of interactive digital multimedia systems. More specifically these systems deal with streams of continuous data, like a news programme, that require further annotation
more » ... e they can be presented to the user in a meaningful way. We automatically evaluate the performance of our lexical chaining-based gister with respect to four baseline extractive gisting methods on a collection of closed caption material taken from a series of news broadcasts. We also report results of a human-based evaluation of summary quality. Our results show that our novel lexical chaining approach to this problem outperforms standard extractive gisting methods.
doi:10.1007/978-3-540-24752-4_16 fatcat:owih6mdorvg7tcjkc2kgr3jv4q