Papers

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Journal paper

1. Teru NAGAMORI, Sayaka SHIOTA, Hitoshi KIYA,
   "Efficient Fine-Tuning with Domain Adaptation for Privacy-Preserving Vision Transformer,"
   APSIPA Trans. Signal and Information Processing,
   vol.13, No.1, e8, April, 2024.
   [DOI] [webpage]
2. Ryota IIJIMA, Sayaka SHIOTA, Hitoshi KIYA,
   "A Random Ensemble of Encrypted Vision Transformers for Adversarially Robust Defense,"
   IEEE Access,
   vol.12, pp.69206--69216, May, 2024.
   [DOI] [webpage]
3. Mare Hirose, Shoko IMAIZUMI, Hitoshi KIYA,
   "Encryption Method for JPEG Bitstreams for Partially Disclosing Visual Information,"
   MDPI electronics,
   vol.13, no.11, May, 2024.
   [DOI]
4. April Pyone MAUNG MAUNG, Isao ECHIZEN, Hitoshi KIYA,
   "Efficient Key-Based Adversarial Defense for ImageNet by Using Pre-trained Model,"
   IEEE Open Journal of Signal Processing,
   vol.5, pp.902--913, July, 2024.
   [DOI]
5. April Pyone MAUNG MAUNG, Isao ECHIZEN, Hitoshi KIYA,
   "On the Security of Learnable Image Encryption for Privacy-Preserving Deep Learning,"
   IEEE Access,
   vol.12, pp.126415--126425, September, 2024.
   [DOI] [webpage]
6. Shoko NIWA, Sayaka SHIOTA, Hitoshi KIYA,
   "Speech Privacy-preserving Methods Using Secret Key for Convolutional Neural Network Models and Their Robustness Evaluation,"
   APSIPA Trans. Signal and Information Processing,
   October, 2024.
   
7. Haiwei Lin , Shoko IMAIZUMI, Hitoshi KIYA,
   "Privacy-Preserving ConvMixer Without Any Accuracy Degradation Using Compressible Encrypted Images,"
   MDPI Information,
   vol.15, no.11, pp.723, November, 2024.
   [DOI] [webpage]

International conference

1. Ryota IIJIMA, Sayaka SHIOTA, Hitoshi KIYA,
   "A Random Ensemble of Encrypted Models for Enhancing Robustness against Adversarial Examples,"
   RISP International Workshop on Nonlinear Circuits, Communications and Signal Processing,
   27th February, 2024.
   [Publish]
2. April Pyone MAUNG MAUNG, Huy H. Nguyen, Hitoshi KIYA, Isao ECHIZEN,
   "FINE-TUNING TEXT-TO-IMAGE DIFFUSION MODELS FOR CLASS-WISE SPURIOUS FEATURE GENERATION,"
   IEEE International Conference on Image Processing,
   27th October, 2024.
   [Publish]
3. April Pyone MAUNG MAUNG, Huy H. Nguyen, Hitoshi KIYA, Isao ECHIZEN,
   "Fine-Tuning Text-To-Image Diffusion Models for Class-Wise Spurious Feature Generation,"
   IEEE International Conference on Image Processing,
   pp.3910--3916, 27th October, 2024.
   [DOI]
4. Koki HORIO, Kiyoshi NISHIKAWA, Hitoshi KIYA,
   "Privacy-Preserving Vision Transformer Using Images Encrypted with Restricted Random Permutation Matrices,"
   IEEE Global Conference on Consumer Electronics,
   31th October, 2024.
   
5. Hiroto SAWADA, Shoko IMAIZUMI, Hitoshi KIYA,
   "Enhancing Security Using Random Binary Weights in Privacy-Preserving Federated Learning,"
   APSIPA Annual Summit and Conference,
   5th December, 2024.
   
6. Mare Hirose, Shoko IMAIZUMI, Hitoshi KIYA,
   "On the Security of Bitstream-level JPEG Encryption with Restart Markers,"
   APSIPA Annual Summit and Conference,
   5th December, 2024.
   
7. Rei ASO, Sayaka SHIOTA, Hitoshi KIYA,
   "Disposable-key-based image encryption for collaborative learning of Vision Transformer,"
   APSIPA Annual Summit and Conference,
   5th December, 2024.
   
8. Yuma KINOSHITA, Hitoshi KIYA,
   "Scene-Segmentation-Based Exposure Compensation for Tone Mapping of High Dynamic Range Scenes,"
   APSIPA Annual Summit and Conference,
   5th December, 2024.
   
9. Hengyi ZOU, Sayaka SHIOTA,
   "Vocal Tract Length Perturbation-based Pseudo-Speaker Augmentation Considering Speaker Variability for Speaker Verification,"
   APSIPA Annual Summit and Conference,
   6th December, 2024.
   

Domestic conference

1. Mare Hirose, Shoko IMAIZUMI, Hitoshi KIYA,
   "An encryption method of JPEG bitstreams for partially disclosing visual information ,"
   Technical Report of IEICE,
   vol.123, no.332, pp.26--31, 17th January, 2024.
   
2. Shoko NIWA, Sayaka SHIOTA, Hitoshi KIYA,
   "Robustness Against Attacks on a Voice Privacy-preserving Method Using Random Orthogonal Matrix-based Secret Key,"
   IEICE Symposium on Cryptography and Information Security,
   24th January, 2024.
   [Local]
3. Fumika ONO, Tomoka WAKAMATSU, Sayaka SHIOTA,
   "Pseudo-speaker augmentation based on vocal tract length perturbation considering speaker variability for speaker verification,"
   Speech Committee,
   vol.123, no.403, no.SP2023-44, pp.7--12, 29th February, 2024.
   [webpage] [Publish] [Local]
4. Tomoka WAKAMATSU, Sayaka SHIOTA, Hitoshi KIYA,
   "Vocal tract length perturbation-based pseudo-speaker augmentation for automatic speaker verification,"
   Speech Committee,
   vol.123, no.403, no.SP-2023-43, pp.1--6, 29th February, 2024.
   [webpage] [Publish] [Local]
5. Rei ASO, Sayaka SHIOTA, Hitoshi KIYA,
   "An Enhanced Privacy-Preserving Scheme for Federated Learning of Vision Transformer without Model Performance Degradation ,"
   Technical Report of IEICE,
   vol.123, no.402, pp.115--120, 29th February, 2024.
   
6. Eri HIRAYAMA, Sayaka SHIOTA,
   "None,"
   General Conference of IEICE,
   pp.73--73, 7th March, 2024.
   [Publish]
7. Sora WATABE, Sayaka SHIOTA,
   "None,"
   General Conference of IEICE,
   pp.72--72, 7th March, 2024.
   [Publish]
8. Hiroto SAWADA, Shoko IMAIZUMI, Hitoshi KIYA,
   "Enhanced Security with Random Binary Weights for Privacy-Preserving Federated Learning ,"
   Technical Report of IEICE,
   vol.124, no.58, no.1, pp.1--6, 6th June, 2024.
   
9. Kota KANNO, Shinnosuke Takamichi, Sayaka SHIOTA,
   "J-SpAW: Japanese corpus for speaker verification and spoofing attack detection, recorded in the wild,"
   IPSJ Music and computer Symposium,
   vol.152, no.52, pp.1--7, 7th June, 2024.
   [Publish] [Local]
10. Koki HORIO, Kiyoshi NISHIKAWA, Hitoshi KIYA,
    "A fine-tuning method using encrypted pre-trained model for Vision Transformer considering privacy protection,"
    Technical Report of IEICE,
    vol.124, no.112, no.21, pp.18--23, 11th July, 2024.
    
11. Kohei TANAKA, Hitoshi KIYA, Sayaka SHIOTA,
    "Enhancing robustness using multiple random orthogonal matrices for voice privacy-preserving,"
    Technical Report of IEICE,
    vol.124, no.162, no.SIP2024-53, pp.45--49, 19th August, 2024.
    [webpage] [Local]
12. Rei ASO, Sayaka SHIOTA, Hitoshi KIYA,
    "Disposable key-based image encryption for muti-participant DNN learning,"
    Technical Report of IEICE,
    vol.124, no.162, no.SIP2024-47, pp.19--24, 26th August, 2024.
    [Local]
13. Yuma KINOSHITA, Hitoshi KIYA,
    "Scene-Segmentation-Based Exposure Compensation for Tone Mapping by Multi-Exposure Image Fusion,"
    IEICE Signal Processing Symposium,
    18th December, 2024.
    [Local]

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