Example based entity search in the web of data

  • Authors:

  • Marc Bron;Krisztian Balog;Maarten de Rijke

  • Affiliations:

  • ISLA, University of Amsterdam, Amsterdam, The Netherlands;University of Stavanger, Stavanger, Norway;ISLA, University of Amsterdam, Amsterdam, The Netherlands

  • Venue:
  • ECIR'13 Proceedings of the 35th European conference on Advances in Information Retrieval
  • Year:
  • 2013

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Abstract

The scale of today's Web of Data motivates the use of keyword search-based approaches to entity-oriented search tasks in addition to traditional structure-based approaches, which require users to have knowledge of the underlying schema. We propose an alternative structure-based approach that makes use of example entities and compare its effectiveness with a text-based approach in the context of an entity list completion task. We find that both the text and structure-based approaches are effective in retrieving relevant entities, but that they find different sets of entities. Additionally, we find that the performance of the structure-based approach is dependent on the quality and number of example entities given. We experiment with a number of hybrid techniques that balance between the two approaches and find that a method that uses the example entities to determine the weights of approaches in the combination on a per query basis is most effective.