title = "The University of New South Wales at {GeoCLEF 2006}",
booktitle = "7th Workshop of the Cross-Language Evaluation Forum,
CLEF 2006",
year = "2006",
editor = "Carol Peters and Paul Clough and Fredric C. Gey and
Jussi Karlgren and Bernardo Magnini and
Douglas W. Oard and Maarten {de Rijke} and Maximilian Stempfhuber",
abstract = "This paper describes our participation in the GeoCLEF
monolingual English task of the Cross Language
Evaluation Forum 2006. The main objective of this study
is to evaluate the retrieve performance of our
geographic information retrieval system. The system
consists of four modules: the geographic knowledge base
that provides information about important geographic
entities around the world and relationships between
them; the indexing module that creates and maintains
textual and geographic indices for document
collections; the document retrieval module that uses
the Boolean model to retrieve documents that meet both
textual and geographic criteria; and the ranking module
that ranks retrieved results based on ranking functions
learnt using Genetic Programming. Experiments results
show that the geographic knowledge base, the indexing
module and the retrieval module are useful for
geographic information retrieval tasks, but the
proposed ranking function learning method doesn't work
well.",
notes = "http://ir.shef.ac.uk/geoclef/2006/
Evaluation of Multilingual and Multi-modal Information
Retrieval (GIR). Published 2007",