Generation of Word Vectors for Unknown Words without Additional Corpus. - Yasufumi Takama; Yoshiyuki Mori; Hiroki Shibata (WI/IAT, 2020)

Treemap-Based Cluster Visualization and its Application to Text Data Analysis. - Yasufumi Takama; Yuna Tanaka; Yoshiyuki Mori; Hiroki Shibata (J. Adv. Comput. Intell. Intell. Informatics, 2021)