PAPERS

Publications in 2025

Journal Papers

Mare Hirose, Shoko IMAIZUMI, Hitoshi KIYA,
"Learnable Image Encryption Without Key Management for Privacy-Preserving Vision Transformer",
IEEE Access, Vol. 13, pp. 201351-201362, 2025-11-20. [DOI] [webpage] [Publish]

International Conference Papers

Sayaka SHIOTA, Suzuka HORIE, Kota KANNO, Shinnosuke Takamichi,
"J-SPAW: Japanese speaker verification and spoofing attacks recorded in-the-wild dataset",
ISCA International Conference on Interspeech, pp. 3913-3917, 2025-08-20. [webpage]
Haruto NAMBA, Sayaka SHIOTA,
"Dual-Feature Ensemble Deep Learning Architecture for Robust Spoofing Speech Detection",
IEEE Global Conference on Consumer Electronics, 2025-09-25.
Haruya TOMINAGA, Sayaka SHIOTA,
"Speech Privacy-Preserving Method Using Random Permutation of Speech Segments",
IEEE Global Conference on Consumer Electronics, 2025-09-25.
Homare SUEYOSHI, Kiyoshi NISHIKAWA, Hitoshi KIYA,
"A Privacy-Preserving Semantic-Segmentation Method Using Domain-Adaptation Technique",
IEEE Global Conference on Consumer Electronics, 2025-09-25.
Haiwei Lin , Shoko IMAIZUMI, Hitoshi KIYA,
"Effective Fine-Tuning of Vision Transformers with Low-Rank Adaptation for Privacy-Preserving Image Classification",
IEEE Global Conference on Consumer Electronics, 2025-09-25.
Shinji YAMASHITA, Yuma KINOSHITA, Hitoshi KIYA,
"Scale and Rotation Estimation of Similarity-Transformed Images via Cross-Correlation Maximization Based on Auxiliary Function Method",
APSIPA Annual Summit and Conference, 2025-10-23. [webpage] [Publish]
Kohei TANAKA, Hitoshi KIYA, Sayaka SHIOTA,
"Voice Privacy Preservation with Multiple Random Orthogonal Secret Keys: Attack Resistance Analysis",
APSIPA Annual Summit and Conference, 2025-10-24.
Takuo YAMAGUCHI, Sayaka SHIOTA, Naohiro TAWARA,
"Investigating Self-supervised Learning-Based Front-End for Multi-Channel Replay Attack Detection",
APSIPA Annual Summit and Conference, 2025-10-24.

Domestic Conference Papers

Koki HORIO, Kiyoshi NISHIKAWA, Hitoshi KIYA,
"A method for enhancing privacy-preserving Vision Transformer using restricted random permutation matrices",
Technical Report of IEICE, Vol. 124, No. 338, pp. EMM2024-105 , 2025-01-21. [DOI] [webpage] [Publish]
Hiroto SAWADA, Shoko IMAIZUMI, Hitoshi KIYA,
"An Extension of Privacy-Preserving FedSGD Federated Learning with Random Binary Weights to FedAvg Federated Learning",
Technical Report of IEICE, Vol. 124 , No. 390, pp. SIP2024-151, 2025-03-03. [webpage]
Haruto NAMBA, Sayaka SHIOTA,
"Speech spoofing detection using deep learning model with multiple acoustic features",
Speech Committee, Vol. 124, No. 391, pp. SP2024-71, 2025-03-04. [webpage]
Mare Hirose, Shoko IMAIZUMI, Hitoshi KIYA,
"A privacy-preserving image classification method applicable to multiple clients without key management ",
Technical Report of IEICE, Vol. 124, No. 414, pp. EMM2024-118, 2025-03-05. [webpage]
Takuo YAMAGUCHI, Naohiro TAWARA, Hiroshi SATO, Sayaka SHIOTA,
"A verification of combining DNN-based speech enhancement front-end with end-to-end neural dialization model",
Acoustical Society of Japan Spring Meeting, pp. 1083-1084, 2025-03-19.
Suzuka HORIE, Sayaka SHIOTA,
"Impact of recording conditions of recording and playback attacks on spoofed voice detection",
General Conference of IEICE, 2025-03-26.
Sawato Furubayashi, Shinnosuke Takamichi, Sayaka SHIOTA,
" A study of speech synthesis attack methods against spoofed speech detection systems.",
General Conference of IEICE, 2025-03-26.
Haruya TOMINAGA, Sayaka SHIOTA,
"Speech Privacy-Preserving Methods Using Randomized Reordering of Speech Segments",
General Conference of IEICE, 2025-03-26.
Homare SUEYOSHI, Koki HORIO, Kiyoshi NISHIKAWA, Hitoshi KIYA,
"A privacy-preserving semantic segmentation method that enables model training on cloud servers",
Technical Report of IEICE, Vol. 125, No. 38, pp. EMM2025-7, 2025-05-29. [webpage]
Takuo YAMAGUCHI, Naohiro TAWARA, Sayaka SHIOTA,
"マルチチャネルなりすまし音声検出における自己教師あり学習フロントエンドの有効性検証",
IPSJ Music and computer Symposium, Vol. 2025-SLP-156, No. 64, pp. 1-6, 2025-06-14. [webpage]
Kohei TANAKA, Hitoshi KIYA, Sayaka SHIOTA,
"複数のランダム直交行列に基づく秘密鍵による音声プライバシー保護法の適用要件緩和と攻撃耐性評価",
IPSJ Music and computer Symposium, Vol. 2025-SLP-156, No. 60, pp. 1-6, 2025-06-14. [webpage] [Publish]
Sawato Furubayashi, Shinnosuke Takamichi, Sayaka SHIOTA,
"Attacks Based on Speaker Adaptation-Based Speech Synthesis Against Spoofing Speech Detection Systems.",
Acoustical Society of Japan Autumn Meeting, 2025-09-12.
Kota KANNO, Sayaka SHIOTA,
"Verification of Spoofed Speech Detection with Multi-task Learning under Replay Attack Environments",
Acoustical Society of Japan Autumn Meeting, 2025-09-12.
Hengyi ZOU, Sayaka SHIOTA,
"Investigating Feature Characteristics of Pseudo-Speaker Data for Speaker Verification",
Acoustical Society of Japan Autumn Meeting, 2025-09-12.
Suzuka HORIE, Shinnosuke Takamichi, Sayaka SHIOTA,
"Impact of recording conditions in replay attacks on spoofed speech detection",
Acoustical Society of Japan Autumn Meeting, 2025-09-12.
Kohei TANAKA, Sayaka SHIOTA,
"Ensemble of Speaker Embeddings in Attentive Pooling-Based Speaker Verification",
Acoustical Society of Japan Autumn Meeting, 2025-09-12.
Homare SUEYOSHI, Kiyoshi NISHIKAWA, Hitoshi KIYA,
"A privacy-aware object detection method for ViT-based models",
IEICE Signal Processing Symposium, 2025-11-26.
Haiwei Lin , Shoko IMAIZUMI, Hitoshi KIYA,
"Compressible Encryption–Based Privacy-Preserving Action Recognition Using Video Transformer",
IEICE Signal Processing Symposium, 2025-11-27.