In recent years, the relation of Web information to a physical location has gained much attention. However, Web content today often carries only an implicit relation to a location. In this chapter, we present a novel location-based search engine that automatically derives spatial context from unstructured Web resources and allows for location-based search: our focused crawler applies heuristics to crawl and analyze Web pages that have a high probability of carrying a spatial relation to a certain region or place; the location extractor identifies the actual location information from the pages; our indexer assigns a geo-context to the pages and makes them available for a later spatial Web search. We illustrate the usage of our spatial Web search for location-based applications that provide information not only right-in-time but also right-on-the-spot.
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© 2007 Springer-Verlag Berlin Heidelberg
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Ahlers, D., Boll, S. (2007). Location-based Web Search. In: Scharl, A., Tochtermann, K. (eds) The Geospatial Web. Advanced Information and Knowledge Processing. Springer, London. https://doi.org/10.1007/978-1-84628-827-2_6
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DOI: https://doi.org/10.1007/978-1-84628-827-2_6
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