ClovaCall: Korean Goal-Oriented Dialog Speech Corpus for Automatic Speech Recognition of Contact Centers

Jung-Woo Ha, Kihyun Nam, Jingu Kang, Sang-Woo Lee, Sohee Yang, Hyunhoon Jung, Hyeji Kim, Eunmi Kim, Soojin Kim, Hyun Ah Kim, Kyoungtae Doh, Chan Kyu Lee, Nako Sung, Sunghun Kim


Automatic speech recognition (ASR) via call is essential for various applications, including AI for contact center (AICC) services. Despite the advancement of ASR, however, most publicly available call-based speech corpora such as Switchboard are old-fashioned. Also, most existing call corpora are in English and mainly focus on open domain dialog or general scenarios such as audiobooks. Here we introduce a new large-scale Korean call-based speech corpus under a goal-oriented dialog scenario from more than 11,000 people, i.e., ClovaCall corpus. ClovaCall includes approximately 60,000 pairs of a short sentence and its corresponding spoken utterance in a restaurant reservation domain. We validate the effectiveness of our dataset with intensive experiments using two standard ASR models. Furthermore, we release our ClovaCall dataset and baseline source codes to be available via https://github.com/ClovaAI/ClovaCall


 DOI: 10.21437/Interspeech.2020-1136

Cite as: Ha, J., Nam, K., Kang, J., Lee, S., Yang, S., Jung, H., Kim, H., Kim, E., Kim, S., Kim, H.A., Doh, K., Lee, C.K., Sung, N., Kim, S. (2020) ClovaCall: Korean Goal-Oriented Dialog Speech Corpus for Automatic Speech Recognition of Contact Centers. Proc. Interspeech 2020, 409-413, DOI: 10.21437/Interspeech.2020-1136.


@inproceedings{Ha2020,
  author={Jung-Woo Ha and Kihyun Nam and Jingu Kang and Sang-Woo Lee and Sohee Yang and Hyunhoon Jung and Hyeji Kim and Eunmi Kim and Soojin Kim and Hyun Ah Kim and Kyoungtae Doh and Chan Kyu Lee and Nako Sung and Sunghun Kim},
  title={{ClovaCall: Korean Goal-Oriented Dialog Speech Corpus for Automatic Speech Recognition of Contact Centers}},
  year=2020,
  booktitle={Proc. Interspeech 2020},
  pages={409--413},
  doi={10.21437/Interspeech.2020-1136},
  url={http://dx.doi.org/10.21437/Interspeech.2020-1136}
}