You-Heng Hu

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Geographic Information Retrieval (GIR) has emerged as a new and promising tool for representation, storage, organisation of and access to geographic information. One of the current issues in GIR research is ranking of retrieved documents by both textual and geographic similarity measures. This paper describes an approach that learns GIR ranking functions(More)
This paper describes our participation in the GeoCLEF monolingual English task of the Cross Language Evaluation Forum 2006. Our retrieval system consists of four modules: the geographic knowledge base; the indexing module; the document retrieval module and the ranking module. The geographic knowledge base provides information about important geographic(More)
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(More)
In order to achieve its full potential, Location-Based Services (LBS) must be supported by flexible and efficient publishing and discovery mechanisms. These mechanisms should allow service providers to deploy and advertise their services, and supply clients with the ability to dynamically discover desirable services and retrieve the information by(More)
Geographic information retrieval (GIR) systems aim to provide advanced functionalities for storage, organisation, searching and representation of geographic information. Digital maps, as a well–established and powerful information medium, have been widely used in GIR systems as a representation tool for geographic knowledge and geographic relationships, and(More)
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