DIADEM: Domains to Databases

  • Tim Furche
  • Georg Gottlob
  • Christian Schallhart
Part of the Lecture Notes in Computer Science book series (LNCS, volume 7446)

Abstract

What if you could turn all websites of an entire domain into a single database? Imagine all real estate offers, all airline flights, or all your local restaurants’ menus automatically collected from hundreds or thousands of agencies, travel agencies, or restaurants, presented as a single homogeneous dataset.

Historically, this has required tremendous effort by the data providers and whoever is collecting the data: Vertical search engines aggregate offers through specific interfaces which provide suitably structured data. The semantic web vision replaces the specific interfaces with a single one, but still requires providers to publish structured data.

Attempts to turn human-oriented HTML interfaces back into their underlying databases have largely failed due to the variability of web sources. In this paper, we demonstrate that this is about to change: The availability of comprehensive entity recognition together with advances in ontology reasoning have made possible a new generation of knowledgedriven, domain-specific data extraction approaches. To that end, we introduce diadem, the first automated data extraction system that can turn nearly any website of a domain into structured data, working fully automatically, and present some preliminary evaluation results.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Tim Furche
    • 1
  • Georg Gottlob
    • 1
  • Christian Schallhart
    • 1
  1. 1.Department of Computer ScienceOxford UniversityOxfordUK

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