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Text Mining with Probabilistic Topic Models: Applications in Information Retrieval and Concept Modeling - Couverture souple

Chemudugunta, Chaitanya

 
9783838364100: Text Mining with Probabilistic Topic Models: Applications in Information Retrieval and Concept Modeling
Couverture souple
ISBN 10 : 3838364104 ISBN 13 : 9783838364100
Editeur : LAP LAMBERT Academic Publishing, 2010

Synopsis

Statistical topic models are a class of probabilistic latent variable models for textual data that represent text documents as distributions over topics. These models have been shown to produce interpretable summarization of documents in the form of topics. In this book, we describe how the statistical topic modeling framework can be used for information retrieval tasks and for the integration of background knowledge in the form of semantic concepts. We first describe the special-words topic models in which a document is represented as a distribution of (i) a mixture of shared topics, (ii) a special-words distribution specific to the document, and (iii) a corpus-level background distribution. We describe the utility of the special-words topic models for information retrieval tasks. We next describe the problem of integrating background knowledge in the form of semantic concepts into the topic modeling framework. To combine data-driven topics and semantic concepts, we describe the concept-topic model and the hierarchical concept-topic model which represent a document as a distribution over data-driven topics and semantic concepts.

Les informations fournies dans la section « Synopsis » peuvent faire référence à une autre édition de ce titre.

Présentation de l'éditeur

Statistical topic models are a class of probabilistic latent variable models for textual data that represent text documents as distributions over topics. These models have been shown to produce interpretable summarization of documents in the form of topics. In this book, we describe how the statistical topic modeling framework can be used for information retrieval tasks and for the integration of background knowledge in the form of semantic concepts. We first describe the special-words topic models in which a document is represented as a distribution of (i) a mixture of shared topics, (ii) a special-words distribution specific to the document, and (iii) a corpus-level background distribution. We describe the utility of the special-words topic models for information retrieval tasks. We next describe the problem of integrating background knowledge in the form of semantic concepts into the topic modeling framework. To combine data-driven topics and semantic concepts, we describe the concept-topic model and the hierarchical concept-topic model which represent a document as a distribution over data-driven topics and semantic concepts.

Biographie de l'auteur

Chaitanya Chemudugunta holds a PhD in Computer Science from the University of California, Irvine. Chaitanya is an expert on text-mining and probabilistic topic models and has published several peer-reviewed international conference and journal papers. He has also served as a reviewer on data mining and machine learning conferences.

Les informations fournies dans la section « A propos du livre » peuvent faire référence à une autre édition de ce titre.

Éditeur
LAP LAMBERT Academic Publishing
Date d'édition
2010
Langue
anglais
ISBN 10 
3838364104
ISBN 13 
9783838364100
Reliure
Broché
Nombre de pages
140
Coordonnées du fabricant
non disponible
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