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Generating News Summaries at Indexing Time

BCS IRSG Symposium: Future Directions in Information Access 2007 (FDIA)

Future Directions in Information Access

28-29 August 2007

Text summarisation, News systems, News indexing

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      Abstract

      This poster presents an efficiency oriented approach to the task of summary generation for operational news retrieval systems, where the summaries are appreciated by the users. This work shows that for this task the relevant sentence extraction techniques are suitable due to the compressibility of the generated summaries and the low computational costs associated. To minimize the costs of the summary construction in retrieval time we propose an efficient storage of the summaries as sentence offsets inside the documents. At indexing time the user query is not available to make the selection of the relevant sentence so the article’s title was chosen to generate a title-biased summary, because of the high quality description of the news that the titles are. The sentence offsets were included in the direct file to just reconstruct the summaries in processing time from this information. This strategy gets a very high improvement in terms of retrieval time with a very low increment of the index size in comparison with query-biased summaries generated at retrieval time. As future work we will approach the evaluation of the summaries quality in base of the DUC measurements and the improvement of the relevance score formulas.

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      Author and article information

      Affiliations
      IRLab, Computer Science Department

      University of A Coruña

      Fac. Informática, Campus de Elviña,

      15071, A Coruña, SPAIN
      Contributors
      Conference
      August 2007
      August 2007
      : 1
      10.14236/ewic/FDIA2007.20
      © Javier Parapar. Published by BCS Learning and Development Ltd. BCS IRSG Symposium: Future Directions in Information Access 2007, Glasgow

      This work is licensed under a Creative Commons Attribution 4.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

      BCS IRSG Symposium: Future Directions in Information Access 2007
      FDIA
      Glasgow
      28-29 August 2007
      Electronic Workshops in Computing (eWiC)
      Future Directions in Information Access
      Product
      Product Information: 1477-9358 BCS Learning & Development
      Self URI (journal page): https://ewic.bcs.org/
      Categories
      Electronic Workshops in Computing

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