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Автор: Geoffrey Andogah
Год: 2011
Издание:
LAP Lambert Academic Publishing
Страниц: 220
ISBN: 9783845408361
The state-of-the-art information retrieval systems lack the geographical intelligence needed to effectively answer geography-dependent questions. Two importance research objectives with respect to the above mentioned challenges are addressed in this thesis: how to mine and analyse the geographical information implicit in text, and how to use the geographical knowledge obtained in this way to build models for answering geography-dependent user questions. More specifically, we seek answers to the following – (1) how can place names, geographical adjectives and the names of people be used to automatically determine the geographical scopes of documents? (2) how well do the automatically determined scopes of documents compare to human assigned scopes? (3) how best to evaluate of scope resolution systems? (4) how effective is the document’s scope in aiding toponyms resolution? (5) how best to evaluate toponym resolution systems? (6) how effective is relevance feedback for Geo-IR? (7) how...
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