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- W2529577912 abstract "We present a new approach towards capturing topic interests corresponding to all the observed latent topics generated by an author in documents to which he or she has contributed. Topic models based on Latent Dirichlet Allocation (LDA) have been built for this purpose but are brittle as to the number of topics allowed for a collection and for each author of documents within the collection. Meanwhile, topic models based upon Hierarchical Dirichlet Processes (HDPs) allow an arbitrary number of topics to be discovered and generative distributions of interest inferred from text corpora, but this approach is not directly extensible to generative models of authors as contributors to documents with variable topical expertise. Our approach 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 another 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. Our model automatically learns author contribution partitions for documents in addition to topics." @default.
- W2529577912 created "2016-10-14" @default.
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- W2529577912 date "2016-01-01" @default.
- W2529577912 modified "2023-09-27" @default.
- W2529577912 title "HDPauthor" @default.
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- W2529577912 doi "https://doi.org/10.1145/2872518.2890561" @default.
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