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Št. zadetkov: 3
TopicFlow Model: Unsupervised Learning of Topic-specific Influences of Hyperlinked Documents
Ramesh Nallapati
Video in druga učna gradiva
Oznake: computer science;machine learning;unsupervised learning
Popular algorithms for modeling the influence of entities in networked data, such as PageRank, work by analyzing the hyperlink structure, but ignore the contents of documents. However, often times, influence is topic dependent, e.g., a web page of high influence in politics may be an unknown entity ...
Leto: 2011 Vir: videolectures.net
Multiscale Topic Tomography
Ramesh Nallapati
Video in druga učna gradiva
Oznake: computer science;network analysis;text mining;machine learning;clustering
Modeling the evolution of topics with time is of great value in automatic summarization and analysis of large document collections. In this work, we propose a new probabilistic graphical model to address this issue. The new model, which we call the Multiscale Topic Tomography Model (MTTM), employs n ...
Leto: 2007 Vir: videolectures.net
Link-PLSA-LDA: A new unsupervised model for topics and influence of blogs
Ramesh Nallapati , William Cohen
Video in druga učna gradiva
Oznake: computer science;social media
Leto: 2008 Vir: videolectures.net
Št. zadetkov: 3
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