A Linear Storage Space Algorithm for a Reference Structure Index. - Yahiko Kambayashi; Takaki Hayashi; Y. Tanaka; Shuzo Yajima (Inf. Process. Lett., 1978)

New indices for bibliographic data and their applications. - Yahiko Kambayashi; Shuzo Yajima; Osamu Konishi; Takaki Hayashi (MARK, 1979)

Dynamic Clustering Procedures for Bibliographic Data. - Yahiko Kambayashi; Takaki Hayashi; Shuzo Yajima (SIGIR, 1981)

Wavelet-Based Methods for High-Frequency Lead-Lag Analysis. - Takaki Hayashi; Yuta Koike (SIAM J. Financial Math., 2018)

Exploring the Effects of Internet Memes in Social Media Marketing through A/B Testing. - Xue Yang; Takaki Hayashi (CBI (2), 2021)