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    <titleInfo>
        <title>A Gradient Boosting-Seq2Seq System for Latin POS Tagging and Lemmatization</title>
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    <name type="personal">
        <namePart type="given">Giuseppe</namePart>
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            <title>Proceedings of LT4HALA 2020 - 1st Workshop on Language Technologies for Historical and Ancient Languages</title>
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        <name type="personal">
            <namePart type="given">Rachele</namePart>
            <namePart type="family">Sprugnoli</namePart>
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        <name type="personal">
            <namePart type="given">Marco</namePart>
            <namePart type="family">Passarotti</namePart>
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            <publisher>European Language Resources Association (ELRA)</publisher>
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    <abstract>The paper presents the system used in the EvaLatin shared task to POS tag and lemmatize Latin. It consists of two components. A gradient boosting machine (LightGBM) is used for POS tagging, mainly fed with pre-computed word embeddings of a window of seven contiguous tokens—the token at hand plus the three preceding and following ones—per target feature value. Word embeddings are trained on the texts of the Perseus Digital Library, Patrologia Latina, and Biblioteca Digitale di Testi Tardo Antichi, which together comprise a high number of texts of different genres from the Classical Age to Late Antiquity. Word forms plus the outputted POS labels are used to feed a seq2seq algorithm implemented in Keras to predict lemmas. The final shared-task accuracies measured for Classical Latin texts are in line with state-of-the-art POS taggers (∼0.96) and lemmatizers (∼0.95).</abstract>
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        <url>https://aclanthology.org/2020.lt4hala-1.19</url>
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%0 Conference Proceedings
%T A Gradient Boosting-Seq2Seq System for Latin POS Tagging and Lemmatization
%A Celano, Giuseppe G. A.
%Y Sprugnoli, Rachele
%Y Passarotti, Marco
%S Proceedings of LT4HALA 2020 - 1st Workshop on Language Technologies for Historical and Ancient Languages
%D 2020
%8 May
%I European Language Resources Association (ELRA)
%C Marseille, France
%@ 979-10-95546-53-5
%G English
%F celano-2020-gradient
%X The paper presents the system used in the EvaLatin shared task to POS tag and lemmatize Latin. It consists of two components. A gradient boosting machine (LightGBM) is used for POS tagging, mainly fed with pre-computed word embeddings of a window of seven contiguous tokens—the token at hand plus the three preceding and following ones—per target feature value. Word embeddings are trained on the texts of the Perseus Digital Library, Patrologia Latina, and Biblioteca Digitale di Testi Tardo Antichi, which together comprise a high number of texts of different genres from the Classical Age to Late Antiquity. Word forms plus the outputted POS labels are used to feed a seq2seq algorithm implemented in Keras to predict lemmas. The final shared-task accuracies measured for Classical Latin texts are in line with state-of-the-art POS taggers (∼0.96) and lemmatizers (∼0.95).
%U https://aclanthology.org/2020.lt4hala-1.19
%P 119-123

Markdown (Informal)

[A Gradient Boosting-Seq2Seq System for Latin POS Tagging and Lemmatization](https://aclanthology.org/2020.lt4hala-1.19) (Celano, LT4HALA 2020)

• A Gradient Boosting-Seq2Seq System for Latin POS Tagging and Lemmatization (Celano, LT4HALA 2020)

ACL

• Giuseppe G. A. Celano. 2020. A Gradient Boosting-Seq2Seq System for Latin POS Tagging and Lemmatization. In Proceedings of LT4HALA 2020 - 1st Workshop on Language Technologies for Historical and Ancient Languages, pages 119–123, Marseille, France. European Language Resources Association (ELRA).