SOME: Reference-less Sub-Metrics Optimized for Manual Evaluations of Grammatical Error Correction

Ryoma Yoshimura; Masahiro Kaneko; Tomoyuki Kajiwara; Mamoru Komachi

COLING 2020main28 citations

SOME: Reference-less Sub-Metrics Optimized for Manual Evaluations of Grammatical Error Correction

Ryoma Yoshimura, Masahiro Kaneko, Tomoyuki Kajiwara, Mamoru Komachi

Abstract

We propose a reference-less metric trained on manual evaluations of system outputs for grammatical error correction (GEC). Previous studies have shown that reference-less metrics are promising; however, existing metrics are not optimized for manual evaluations of the system outputs because no dataset of the system output exists with manual evaluation. This study manually evaluates outputs of GEC systems to optimize the metrics. Experimental results show that the proposed metric improves correlation with the manual evaluation in both system- and sentence-level meta-evaluation. Our dataset and metric will be made publicly available.

BibTeX

@inproceedings{yoshimura-etal-2020-reference,
    title = "{SOME}: Reference-less Sub-Metrics Optimized for Manual Evaluations of Grammatical Error Correction",
    author = "Yoshimura, Ryoma  and
      Kaneko, Masahiro  and
      Kajiwara, Tomoyuki  and
      Komachi, Mamoru",
    editor = "Scott, Donia  and
      Bel, Nuria  and
      Zong, Chengqing",
    booktitle = "Proceedings of the 28th International Conference on Computational Linguistics",
    month = dec,
    year = "2020",
    address = "Barcelona, Spain (Online)",
    publisher = "International Committee on Computational Linguistics",
    url = "https://aclanthology.org/2020.coling-main.573/",
    doi = "10.18653/v1/2020.coling-main.573",
    pages = "6516--6522"
}