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Nuno Cardoso, Bruno Martins, Marcirio Chaves,

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Nuno Cardoso, Bruno Martins, Marcirio Chaves, Leonardo Andrade and M rio J. Silva ... Goal: Develop a stable testbed to test GIR approaches ... – PowerPoint PPT presentation

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Title: Nuno Cardoso, Bruno Martins, Marcirio Chaves,


1
The University of Lisbon at CLEF 2006
  • Nuno Cardoso, Bruno Martins, Marcirio Chaves,
  • Leonardo Andrade and Mário J. Silva

ncardoso, bmartins, mchaves, leonardo, mjs _at_
xldb.fc.ul.pt
XLDB Group - Department of Informatics Faculdade
de Ciências da Universidade de Lisboa
http//xldb.fc.ul.pt
2
The University of Lisbon at CLEF 2006
  • Poster 1 ad-hoc participation
  • - Goal Develop a stable testbed to test GIR
    approaches
  • - Improvements since 2005 QE , and Retrieval
    Ranking module.
  • Poster 2 GeoCLEF participation
  • - Goal Compare 2 strategies for GIR against
    conventional IR approach
  • 1 Geographic text mining
  • 2 Augmentation of geographic terms

3
The University of Lisbon at CLEF 2006
  • Geographic text mining (strategy 1 at GeoCLEF
    2006)
  • Mining geographic references from text.
  • Assign a scope to each document.
  • Convert topics into ltwhat, relation, wheregt
    triples.
  • assign scopes to ltwheregt terms.
  • BM25 geographic similarity
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