Tianai Dong

Publications

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  • Scholman, M., Tianai, D., Yung, F., & Demberg, V. (2022). DiscoGeM: A crowdsourced corpus of genre-mixed implicit discourse relations. In N. Calzolari, F. B├ęchet, P. Blache, K. Choukri, C. Cieri, T. DeClerck, S. Goggi, H. Isahara, B. Maegaard, J. Mariani, H. Mazo, J. Odijk, & S. Piperidis (Eds.), Proceedings of the 13th Language Resources and Evaluation Conference (LREC 2022) (pp. 3281-3290). Marseille, France: European Language Resources Association.

    Abstract

    We present DiscoGeM, a crowdsourced corpus of 6,505 implicit discourse relations from three genres: political speech,
    literature, and encyclopedic texts. Each instance was annotated by 10 crowd workers. Various label aggregation methods
    were explored to evaluate how to obtain a label that best captures the meaning inferred by the crowd annotators. The results
    show that a significant proportion of discourse relations in DiscoGeM are ambiguous and can express multiple relation senses.
    Probability distribution labels better capture these interpretations than single labels. Further, the results emphasize that text
    genre crucially affects the distribution of discourse relations, suggesting that genre should be included as a factor in automatic
    relation classification. We make available the newly created DiscoGeM corpus, as well as the dataset with all annotator-level
    labels. Both the corpus and the dataset can facilitate a multitude of applications and research purposes, for example to
    function as training data to improve the performance of automatic discourse relation parsers, as well as facilitate research into
    non-connective signals of discourse relations.

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