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        <title>Diachrony-aware Induction of Binary Latent Representations from Typological Features</title>
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        <namePart type="given">Yugo</namePart>
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            <namePart type="given">Greg</namePart>
            <namePart type="family">Kondrak</namePart>
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    <abstract>Although features of linguistic typology are a promising alternative to lexical evidence for tracing evolutionary history of languages, a large number of missing values in the dataset pose serious difficulties for statistical modeling. In this paper, we combine two existing approaches to the problem: (1) the synchronic approach that focuses on interdependencies between features and (2) the diachronic approach that exploits phylogenetically- and/or spatially-related languages. Specifically, we propose a Bayesian model that (1) represents each language as a sequence of binary latent parameters encoding inter-feature dependencies and (2) relates a language’s parameters to those of its phylogenetic and spatial neighbors. Experiments show that the proposed model recovers missing values more accurately than others and that induced representations retain phylogenetic and spatial signals observed for surface features.</abstract>
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%0 Conference Proceedings
%T Diachrony-aware Induction of Binary Latent Representations from Typological Features
%A Murawaki, Yugo
%Y Kondrak, Greg
%Y Watanabe, Taro
%S Proceedings of the Eighth International Joint Conference on Natural Language Processing (Volume 1: Long Papers)
%D 2017
%8 November
%I Asian Federation of Natural Language Processing
%C Taipei, Taiwan
%F murawaki-2017-diachrony
%X Although features of linguistic typology are a promising alternative to lexical evidence for tracing evolutionary history of languages, a large number of missing values in the dataset pose serious difficulties for statistical modeling. In this paper, we combine two existing approaches to the problem: (1) the synchronic approach that focuses on interdependencies between features and (2) the diachronic approach that exploits phylogenetically- and/or spatially-related languages. Specifically, we propose a Bayesian model that (1) represents each language as a sequence of binary latent parameters encoding inter-feature dependencies and (2) relates a language’s parameters to those of its phylogenetic and spatial neighbors. Experiments show that the proposed model recovers missing values more accurately than others and that induced representations retain phylogenetic and spatial signals observed for surface features.
%U https://aclanthology.org/I17-1046
%P 451-461

Markdown (Informal)

[Diachrony-aware Induction of Binary Latent Representations from Typological Features](https://aclanthology.org/I17-1046) (Murawaki, IJCNLP 2017)

• Diachrony-aware Induction of Binary Latent Representations from Typological Features (Murawaki, IJCNLP 2017)

ACL

• Yugo Murawaki. 2017. Diachrony-aware Induction of Binary Latent Representations from Typological Features. In Proceedings of the Eighth International Joint Conference on Natural Language Processing (Volume 1: Long Papers), pages 451–461, Taipei, Taiwan. Asian Federation of Natural Language Processing.