1. M. Ball, “The Metaverse: What It Is, Where to Find It, Who Will Build It,” 2020.
2. The Japan Research Institute, Limited, “Metaverse Overview and Trends—Toward Use in Business Scenarios” (in Japanese).
https://www.jri.co.jp/MediaLibrary/file/column/opinion/pdf/13531.pdf
3. Press release issued by NTT on Nov. 15, 2022 (in Japanese).
https://group.ntt/jp/newsrelease/2022/11/15/221115b.html
4. Press release issued by NTT on Apr. 29, 2023 (in Japanese).
https://group.ntt/jp/newsrelease/2023/04/29/230429a.html
5. C. Ahuja, D. W. Lee, R. Ishii, and L. P. Morency, “No Gestures Left Behind: Learning Relationships between Spoken Language and Freeform Gestures,” EMNLP: Findings, pp. 1884–1895, Nov. 2020.
https://doi.org/10.18653/v1/2020.findings-emnlp.170