Using wikipedia categories for ad hoc search

ABSTRACT

In this paper we explore the use of category information for ad hoc retrieval in Wikipedia. We show that techniques for entity ranking exploiting this category information can also be applied to ad hoc topics and lead to significant improvements. Automatically assigned target categories are good surrogates for manually assigned categories, which perform only slightly better.

REFERENCES

• 1: D. Hiemstra. Using Language Models for Information Retrieval. PhD thesis, Center for Telematics and Information Technology, University of Twente, 2001.
• 2: Djoerd Hiemstra , Stephen Robertson , Hugo Zaragoza, Parsimonious language models for information retrieval, Proceedings of the 27th annual international ACM SIGIR conference on Research and development in information retrieval, July 25-29, 2004, Sheffield, United Kingdom [doi>10.1145/1008992.1009025]
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INDEX TERMS

Primary Classification:
  H. Information Systems
  H.3 INFORMATION STORAGE AND RETRIEVAL
      H.3.3 Information Search and Retrieval
          Subjects: Retrieval models

General Terms:
Experimentation, Measurement, Performance

Keywords:
ad hoc retrieval, category information, wikipedia