Hierarchical Bayesian topic modeling with sentiment and author extension

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dc.contributor.author Yang, Ming
dc.date.accessioned 2015-12-17T16:51:03Z
dc.date.available 2015-12-17T16:51:03Z
dc.date.issued 2016-05-01 en_US
dc.identifier.uri http://hdl.handle.net/2097/20598
dc.description.abstract While the Hierarchical Dirichlet Process (HDP) has recently been widely applied to topic modeling tasks, most current hybrid models for concurrent inference of topics and other factors are not based on HDP. In this dissertation, we present two new models that extend an HDP topic modeling framework to incorporate other learning factors. One model injects Latent Dirichlet Allocation (LDA) based sentiment learning into HDP. This model preserves the benefits of nonparametric Bayesian models for topic learning, while learning latent sentiment aspects simultaneously. It automatically learns different word distributions for each single sentiment polarity within each topic generated. The other model combines an existing HDP framework for learning topics from free text with latent authorship learning within a generative model using author list information. This model adds one more layer into the current hierarchy of HDPs to represent topic groups shared by authors, and the document topic distribution is represented as a mixture of topic distribution of its authors. This model automatically learns author contribution partitions for documents in addition to topics. en_US
dc.language.iso en_US en_US
dc.publisher Kansas State University en
dc.subject Computer science en_US
dc.title Hierarchical Bayesian topic modeling with sentiment and author extension en_US
dc.type Dissertation en_US
dc.description.degree Doctor of Philosophy en_US
dc.description.level Doctoral en_US
dc.description.department Computing and Information Sciences en_US
dc.description.advisor William H. Hsu en_US
dc.subject.umi Computer Science (0984) en_US
dc.date.published 2016 en_US
dc.date.graduationmonth May en_US

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