Use of Temporal Expressions in Web Search

  • Sérgio Nunes
  • Cristina Ribeiro
  • Gabriel David
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4956)


While trying to understand and characterize users’ behavior online, the temporal dimension has received little attention by the research community. This exploratory study uses two collections of web search queries to investigate the use of temporal information needs. Using state-of-the-art information extraction techniques we identify temporal expressions in these queries. We find that temporal expressions are rarely used (1.5% of queries) and, when used, they are related to current and past events. Also, there are specific topics where the use of temporal expressions is more visible.


Temporal Expression 27th Annual International Conference 16th International World Wide Information Extraction Technique Monday Night 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer-Verlag Berlin Heidelberg 2008

Authors and Affiliations

  • Sérgio Nunes
    • 1
  • Cristina Ribeiro
    • 1
    • 2
  • Gabriel David
    • 1
    • 2
  1. 1.Faculdade de Engenharia da Universidade do Porto 
  2. 2.INESC-Porto, Rua Dr. Roberto Frias, s/n 4200-465 PortoPortugal

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