Mining geographic knowledge using a location aware topic model
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United States of America Patent
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Dec 14, 2010
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N/A
app pub date -
Jun 21, 2007
filing date -
Jun 21, 2007
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Abstract
Mining geographic knowledge using a location aware topic model is provided. A location system estimates topics and locations associated with documents based on a location aware topic (“LAT”) model. The location system generates the model from a collection of documents that are labeled with their associated locations. The location system generates collection level parameters based on an LDA-style model. To generate the collection level parameters, the location system estimates probabilities of latent topics, locations, and words of the collection. After the model is generated, the location system uses the collection level parameters to estimate probabilities of topics and locations being associated with target documents.
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