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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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          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

          August 2007
          August 2007
          : 1
          IRLab, Computer Science Department

          University of A Coruña

          Fac. Informática, Campus de Elviña,

          15071, A Coruña, SPAIN
          © 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
          28-29 August 2007
          Electronic Workshops in Computing (eWiC)
          Future Directions in Information Access
          Product Information: 1477-9358BCS Learning & Development
          Self URI (journal page): https://ewic.bcs.org/
          Electronic Workshops in Computing


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