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      Learning Multilingual Topics from Incomparable Corpus

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          Abstract

          Multilingual topic models enable crosslingual tasks by extracting consistent topics from multilingual corpora. Most models require parallel or comparable training corpora, which limits their ability to generalize. In this paper, we first demystify the knowledge transfer mechanism behind multilingual topic models by defining an alternative but equivalent formulation. Based on this analysis, we then relax the assumption of training data required by most existing models, creating a model that only requires a dictionary for training. Experiments show that our new method effectively learns coherent multilingual topics from partially and fully incomparable corpora with limited amounts of dictionary resources.

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          Most cited references16

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          Machine Reading Tea Leaves: Automatically Evaluating Topic Coherence and Topic Model Quality

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            Polylingual topic models

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              Incorporating domain knowledge into topic modeling via Dirichlet Forest priors

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                Author and article information

                Journal
                11 June 2018
                Article
                1806.04270
                104642b1-e548-4b37-8f6f-b6d55a1fc6e7

                http://arxiv.org/licenses/nonexclusive-distrib/1.0/

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                To appear in International Conference on Computational Linguistics (COLING), 2018
                cs.CL

                Theoretical computer science
                Theoretical computer science

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