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Differential topic models

Chen, Changyou; Buntine, Wray; Ding, Nan; Xie, Lexing; Du, Lan


In applications we may want to compare different document collections: they could have shared content but also different and unique aspects in particular collections. This task has been called comparative text mining or cross-collection modeling. We present a differential topic model for this application that models both topic differences and similarities. For this we use hierarchical Bayesian nonparametric models. Moreover, we found it was important to properly model power-law phenomena in...[Show more]

CollectionsANU Research Publications
Date published: 2015-02
Type: Journal article
Source: IEEE Transactions on Pattern Analysis and Machine Intelligence
DOI: 10.1109/TPAMI.2014.2313127


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