@article{thenttdcase2020challengetask6system,
  title = {The NTT DCASE2020 Challenge Task 6 system: Automated Audio Captioning with Keywords and Sentence Length Estimation},
  author = {Yuma Koizumi and Daiki Takeuchi and Yasunori Ohishi and Noboru Harada and Kunio Kashino},
  year = {2020},
  eprint = {2007.00225},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2007.00225v1},
}