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GeoTagMapper : A Map-based Geographic Information Retrieval System for GeoTagged Web content

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 provide users with capabilities to understand and reason about the geographic environment that is correlated with the retrieved information. This paper addresses several key challenges in designing and implementing of retrieval systems for geo-tagged Web content by developing an online map-based GIR system called GeoTagMapper. The components of the proposed are described in detail and the effectiveness and the usefulness of our system are demonstrated by applying it to a large collection of geo-tagged Web pages.