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ATM : Adversarial-neural topic model

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Wang, Rui, Zhou, Deyu and He, Yulan (2019) ATM : Adversarial-neural topic model. Information Processing & Management, 56 (6). 102098. doi:10.1016/j.ipm.2019.102098

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Official URL: http://doi.org/10.1016/j.ipm.2019.102098

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Abstract

Topic models are widely used for thematic structure discovery in text. But traditional topic models often require dedicated inference procedures for specific tasks at hand. Also, they are not designed to generate word-level semantic representations. To address the limitations, we propose a neural topic modeling approach based on the Generative Adversarial Nets (GANs), called Adversarial-neural Topic Model (ATM) in this paper. To our best knowledge, this work is the first attempt to use adversarial training for topic modeling. The proposed ATM models topics with Dirichlet prior and employs a generator network to capture the semantic patterns among latent topics. Meanwhile, the generator could also produce word-level semantic representations. Besides, to illustrate the feasibility of porting ATM to tasks other than topic modeling, we apply ATM for open domain event extraction. To validate the effectiveness of the proposed ATM, two topic modeling benchmark corpora and an event dataset are employed in the experiments. Our experimental results on benchmark corpora show that ATM generates more coherence topics (considering five topic coherence measures), outperforming a number of competitive baselines. Moreover, the experiments on event dataset also validate that the proposed approach is able to extract meaningful events from news articles.

Item Type: Journal Article
Subjects: Q Science > QA Mathematics > QA76 Electronic computers. Computer science. Computer software
Divisions: Faculty of Science > Computer Science
Journal or Publication Title: Information Processing & Management
Publisher: Elsevier
ISSN: 0306-4573
Official Date: November 2019
Dates:
DateEvent
November 2019Published
17 August 2019Available
7 August 2019Accepted
Volume: 56
Number: 6
Article Number: 102098
DOI: 10.1016/j.ipm.2019.102098
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Restricted or Subscription Access
Copyright Holders: Elsevier Ltd.
Open Access Version:
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