Fast and space-efficient secure frequent pattern mining by FHE. - Hiroki Imabayashi; Yu Ishimaki; Akira Umayabara; Hayato Yamana (IEEE BigData, 2016)

Privacy-preserving string search for genome sequences with FHE bootstrapping optimization. - Yu Ishimaki; Hiroki Imabayashi; Kana Shimizu; Hayato Yamana (IEEE BigData, 2016)

Secure Frequent Pattern Mining by Fully Homomorphic Encryption with Ciphertext Packing. - Hiroki Imabayashi; Yu Ishimaki; Akira Umayabara; Hiroki Sato; Hayato Yamana (DPM/QASA@ESORICS, 2016)

Attribute-based proxy re-encryption method for revocation in cloud data storage. - Yoshiko Yasumura; Hiroki Imabayashi; Hayato Yamana (IEEE BigData, 2017)

Private Substring Search on Homomorphically Encrypted Data. - Yu Ishimaki; Hiroki Imabayashi; Hayato Yamana (SMARTCOMP, 2017)