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公开(公告)号:US07853596B2
公开(公告)日:2010-12-14
申请号:US11766716
申请日:2007-06-21
申请人: Wei-Ying Ma , Chong Wang , Jinggang Wang , Xing Xie
发明人: Wei-Ying Ma , Chong Wang , Jinggang Wang , Xing Xie
CPC分类号: G06F17/30241
摘要: 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.
摘要翻译: 提供使用位置感知主题模型挖掘地理知识。 位置系统基于位置感知主题(“LAT”)模型估计与文档相关联的主题和位置。 位置系统从标有其关联位置的文档集合生成模型。 位置系统基于LDA样式模型生成收集级别参数。 为了生成收集级参数,定位系统估计集合的潜在主题,位置和单词的概率。 在模型生成之后,位置系统使用集合级参数来估计与目标文档相关联的主题和位置的概率。
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公开(公告)号:US20080319974A1
公开(公告)日:2008-12-25
申请号:US11766716
申请日:2007-06-21
申请人: Wei-Ying Ma , Chong Wang , Jinggang Wang , Xing Xie
发明人: Wei-Ying Ma , Chong Wang , Jinggang Wang , Xing Xie
IPC分类号: G06F17/30
CPC分类号: G06F17/30241
摘要: 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.
摘要翻译: 提供使用位置感知主题模型挖掘地理知识。 位置系统基于位置感知主题(“LAT”)模型估计与文档相关联的主题和位置。 位置系统从标有其关联位置的文档集合生成模型。 位置系统基于LDA样式模型生成收集级别参数。 为了生成收集级参数,定位系统估计集合的潜在主题,位置和单词的概率。 在模型生成之后,位置系统使用集合级参数来估计与目标文档相关联的主题和位置的概率。
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