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The GeoTALP-IR System at GeoCLEF 2005: Experiments Using a QA-Based IR System,
 

Summary: The GeoTALP-IR System at GeoCLEF 2005:
Experiments Using a QA-Based IR System,
Linguistic Analysis, and a Geographical
Thesaurus
Daniel Ferr´es, Alicia Ageno, and Horacio Rodr´iguez
TALP Research Center, Software Department
Universitat Polit`ecnica de Catalunya
Jordi Girona 1-3, 08043 Barcelona, Spain
{dferres, ageno, horacio}@lsi.upc.edu
http://www.lsi.upc.edu/~nlp
Abstract. This paper describes GeoTALP-IR system, a Geographical
Information Retrieval (GIR) system. The system is described and eval-
uated in the context of our participation in the CLEF 2005 GeoCLEF
Monolingual English task.
The GIR system is based on Lucene and uses a modified version of
the Passage Retrieval module of the TALP Question Answering (QA)
system presented at CLEF 2004 and TREC 2004 QA evaluation tasks.
We designed a Keyword Selection algorithm based on a Linguistic and
Geographical Analysis of the topics. A Geographical Thesaurus (GT)
has been built using a set of publicly available Geographical Gazetteers

  

Source: Ageno, Alicia - Departament of Llenguatges i Sistemes Informátics, Universitat Politècnica de Catalunya

 

Collections: Computer Technologies and Information Sciences