ISCA Archive AutoMin 2021
ISCA Archive AutoMin 2021

Team Hitachi @ AutoMin 2021: Reference-free Automatic Minuting Pipeline with Argument Structure Construction over Topic-based Summarization

Atsuki Yamaguchi, Gaku Morio, Hiroaki Ozaki, Ken-ichi Yokote, Kenji Nagamatsu

This paper introduces the proposed automatic minuting system of the Hitachi team for the First Shared Task on Automatic Minuting (AutoMin-2021). We utilize a reference-free approach (i.e., without using training minutes) for automatic minuting (Task A), which first splits a transcript into blocks on the basis of topics and subsequently summarizes those blocks with a pre-trained BART model fine-tuned on a summarization corpus of chat dialogue. In addition, we apply a technique of argument mining to the generated minutes, reorganizing them in a well-structured and coherent way. We utilize multiple relevance scores to determine whether or not a minute is derived from the same meeting when either a transcript or another minute is given (Task B and C). On top of those scores, we train a conventional machine learning model to bind them and to make final decisions. Consequently, our approach for Task A achieve the best adequacy score among all submissions and close performance to the best system in terms of grammatical correctness and fluency. For Task B and C, the proposed model successfully outperformed a majority vote baseline.


doi: 10.21437/AutoMin.2021-4

Cite as: Yamaguchi, A., Morio, G., Ozaki, H., Yokote, K.-i., Nagamatsu, K. (2021) Team Hitachi @ AutoMin 2021: Reference-free Automatic Minuting Pipeline with Argument Structure Construction over Topic-based Summarization. Proc. First Shared Task on Automatic Minuting at Interspeech 2021, 41-48, doi: 10.21437/AutoMin.2021-4

@inproceedings{yamaguchi21_automin,
  author={Atsuki Yamaguchi and Gaku Morio and Hiroaki Ozaki and Ken-ichi Yokote and Kenji Nagamatsu},
  title={{Team Hitachi @ AutoMin 2021: Reference-free Automatic Minuting Pipeline with Argument Structure Construction over Topic-based Summarization}},
  year=2021,
  booktitle={Proc. First Shared Task on Automatic Minuting at Interspeech 2021},
  pages={41--48},
  doi={10.21437/AutoMin.2021-4}
}