Conference paper Open Access

Multilingual Dynamic Topic Model

Elaine Zosa; Mark Granroth-Wilding

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    <subfield code="a">Topic modeling</subfield>
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    <subfield code="d">2-4 September 2019</subfield>
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    <subfield code="a">Recent Advances in Natural Language Processing</subfield>
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    <subfield code="u">University of Helsinki</subfield>
    <subfield code="a">Mark Granroth-Wilding</subfield>
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    <subfield code="u">University of Helsinki</subfield>
    <subfield code="a">Elaine Zosa</subfield>
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    <subfield code="a">Multilingual Dynamic Topic Model</subfield>
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    <subfield code="a">&lt;p&gt;Dynamic topic models (DTMs) capture the evolution of topics and trends in time series data.&lt;br&gt;
Current DTMs are applicable only to monolingual datasets. In this paper we present the multilingual&lt;br&gt;
dynamic topic model (ML-DTM), a novel topic model that combines DTM with an existing multilingual&lt;br&gt;
topic modeling method to capture crosslingual topics that evolve across time. We present&lt;br&gt;
results of this model on a parallel German-English corpus of news articles and a comparable corpus&lt;br&gt;
of Finnish and Swedish news articles. We demonstrate&amp;nbsp;the capability of ML-DTM to track significant&lt;br&gt;
events related to a topic and show that it finds&amp;nbsp;distinct topics and performs as well as existing&lt;br&gt;
multilingual topic models in aligning cross-lingual&amp;nbsp;topics.&lt;/p&gt;</subfield>
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