Hiroaki Yamamoto, Ryosuke Oda, Yoshihiro Wachi, Hiroshi Fujiwara. Substring Searchable Symmetric Encryption Based on an Improved DAWG. IEICE Transaction on Fundamentals. 2022. Vol.E105-A. No.12. 1578-1590
Hiroshi Fujiwara, Yuichi Shirai, Hiroaki Yamamoto. The Huffuman Tree Problem with Upper Bounded Linear Functions. IEICE Trans. on Inf. & Syst. 2022. Vol.E105-D. No.05. 474-480
Hiroshi Fujiwara, Yuta Wanikawa, Hiroaki Yamamoto. Asymptotic Approximation Ratios for Certain Classes of Online Bin Packing Algorithms. IEICE Trans. on Inf. & Syst. 2021. Vol.E104-D. No.03. 362-369
Hiroaki Yamamoto, Hiroshi Fujiwara. A New Finite Automaton Construction using a Prefix and a Suffix of Regular Expressions. IEICE Trans. on Inf. & Syst. 2021. E104-D. 3