Searching by using spatial document and spatial keyword document indexes
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United States of America Patent
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May 31, 2011
Grant Date -
Feb 16, 2006
app pub date -
Jun 7, 2005
filing date -
Feb 22, 2000
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Abstract
A computer-implemented method for searching a corpus of documents for documents that are responsive to a query specifying one or more search words and spatial information, the method involving: storing in memory a spatial document index for the corpus of documents, wherein the spatial document index indexes documents in the corpus according to spatial references found within the documents; storing in a storage medium a plurality of spatial keyword document indexes for the corpus of documents, wherein each of the spatial keyword document indexes is for a different keyword and indexes those documents among the corpus that are responsive to that keyword; and intersecting a portion of the spatial document index and selected indexes among the plurality of spatial keyword document indexes to identify a result set of those documents from among the corpus of documents that are responsive to the query.
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