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      Advances in Information Retrieval: 39th European Conference on IR Research, ECIR 2017, Aberdeen, UK, April 8-13, 2017, Proceedings 

      Exploring Time-Sensitive Variational Bayesian Inference LDA for Social Media Data

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          Finding scientific topics.

          A first step in identifying the content of a document is determining which topics that document addresses. We describe a generative model for documents, introduced by Blei, Ng, and Jordan [Blei, D. M., Ng, A. Y. & Jordan, M. I. (2003) J. Machine Learn. Res. 3, 993-1022], in which each document is generated by choosing a distribution over topics and then choosing each word in the document from a topic selected according to this distribution. We then present a Markov chain Monte Carlo algorithm for inference in this model. We use this algorithm to analyze abstracts from PNAS by using Bayesian model selection to establish the number of topics. We show that the extracted topics capture meaningful structure in the data, consistent with the class designations provided by the authors of the articles, and outline further applications of this analysis, including identifying "hot topics" by examining temporal dynamics and tagging abstracts to illustrate semantic content.
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            Dynamic topic models

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              Comparing Twitter and Traditional Media Using Topic Models

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                Book
                978-3-319-56607-8
                978-3-319-56608-5
                2017
                10.1007/978-3-319-56608-5
                Book Chapter
                2017
                April 08 2017
                : 252-265
                10.1007/978-3-319-56608-5_20

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