Preprints
Preprints
V. Yachongka and R. A. Chou, “Privacy-constrained function computation in distributed databases,” in Preparation for submission to IEEE Trans. Inf. Theory.
V. Yachongka and R. A. Chou, “Privacy-constrained function computation in distributed databases,” in Preparation for submission to IEEE Trans. Inf. Theory.
V. Yachongka and R. A. Chou, “Secret-key generation from private identifiers under channel uncertainty,” IEEE Trans. Inf. Forensics Secur., Oct. 2025.
V. Yachongka, H. Yagi, and H. Ochiai, “Outer bounds on the CEO problem with privacy constraints,” IEEE Trans. Inf. Forensics Secur., Dec. 2024.
V. Yachongka, H. Yagi, and H. Ochiai, “Key agreement using physical identifiers for degraded and less noisy authentication channels,” IEEE Trans. Inf. Forensics Secur., Aug. 2023.
V. Yachongka and H. Yagi, “Biometric identification systems with both chosen and generated secret keys by allowing correlation,” IEICE Trans. Fundamental, Mar. 2023
V. Yachongka, H. Yagi, and Y. Oohama, “Biometric identification systems with noisy enrollment for Gaussian sources and channels,” Entropy, Aug. 2021.
V. Yachongka and H. Yagi, “Fundamental limits of biometric identification system under noisy enrollment,” IEICE Trans. Fundamental, Jan. 2021.
V. Yachongka and H. Yagi, “Reliability function and strong converse of biometrical identification systems based on list-decoding,” IEICE Trans. Fundamental., May 2017.
V. Yachongka, R. A. Chou, and H. Yagi “An achievable rate region for hypothesis testing and user identification with multiple sources,” in Proc. Allerton Conf. Commun., Control, and Comput. (Allerton), Urbana, Illinois, USA, Sep. 2025.
V. Yachongka and R. A. Chou, “Privacy-Constrained Lossy Function Computation in Distributed Databases,” in Proc. IEEE Int. Symp. Inf. Theory (ISIT), Ann Arbor, Michigan, USA, 2025.
V. Yachongka and R. A. Chou, “Secret-Key Generation with PUFs and Biometric Identifiers for Compound Authentication Channels,” in Proc. IEEE Inf. Theory Workshop (ITW), Shenzhen, China, 2024, pp. 591-596.
T. Shen, V. Yachongka, and H. Ochiai, “Secure NOMA-based indoor VLC networks with body blockage model,” in Proc. IEEE Wirel. Commun. Netw. Conf. (WCNC), Glassgow, UK, Mar. 2023, pp. 1--6.
V. Yachongka, H. Yagi, and H. Ochiai, “Secret-key agreement using physical identifiers for degraded and less noisy authentication channels,” in Proc. IEEE Inf. Theory Workshop (ITW), Mumbai, India, Nov. 2022, pp. 232--237.
V. Yachongka, H. Yagi, and Y. Oohama, “Secret key-based authentication with passive eavesdropper for scalar Gaussian sources,” in Proc. IEEE Int. Symp. Inf. Theory (ISIT), Espoo, Finland, Jun./Jul. 2022, pp. 2666--2671.
V. Yachongka, H. Yagi, and Y. Oohama, “Biometric identification systems with noisy enrollment for Gaussian source,” in IEEE Inf. Theory Workshop (ITW), Riva del Garda, Italy (Online), Apr. 2021, pp. 1--5.
V. Yachongka and H. Yagi, “A new characterization of the capacity region of identification systems under noisy enrollment,” in Proc. 54th Annu. Conf. Inf. Sci. Syst. (CISS), New Jersey, USA, Mar. 2020, pp. 1--6.
V. Yachongka and H. Yagi, “Biometric identification systems with both chosen and generated secrecy,” in Proc. 2020 Int. Symp. Inf. Theory Its Appl. (ISITA), Hawaii, USA (Online), Oct. 2020, pp. 417--421.
V. Yachongka and H. Yagi, “Identification, secrecy, template, and privacy-leakage of biometric identification system under noisy enrollment,” in Proc. IEEE Int. Symp. Inf. Theory (ISIT), Paris, France, Jul. 2019, pp. 812--816.
V. Yachongka and H. Yagi, “Fundamental tradeoff among identification, secrecy and compression rates in biometric identification system,” in Proc. RISP Int. Workshop Nonlinear Circuits (NCSP’2018), Honolulu, Hawaii, USA, Mar. 2018, pp. 5--8.
V. Yachongka and H. Yagi, “Reliability function and strong converse of biometrical identification systems,” in Proc. Int. Symp. Inf. Theory Its Appl. (ISITA), Monterey, CA, USA, Oct./Nov. 2016, pp. 547--551.
小柳 翔吾, ヤチョンカ ワムア, 八木 秀樹, “強安全性基準に基づく受動的盗聴者が存在する生体識別システム,” 情報理論とその応用シンポジウム (SITA2023), 2023年 11月.
ヤチョンカ ワムア, 落合 秀樹, “A Study on Key Agreement Over Slow Fading Channels,” 電子情報通信学会総合大会, 2023年 3月.
小柳 翔吾, ヤチョンカ ワムア, 八木 秀樹, “登録雑音と受動的盗聴者が存在する生体識別システム,” 情報理論とその応用シンポジウム (SITA2022), 2022年 11月.
ヤチョンカ ワムア, 落合 秀樹, “Secure CEO Problem with Physical Identifiers Under Logarithmic Loss and Quadratic Gaussian Distortion Measures,” 情報理論とその応用シンポジウム (SITA2022), 2022年 11月.
ヤチョンカ ワムア，黒須 礼尚，旭 瑞歩，八木 秀樹，石橋 功至,“拡張可能なPolarization-Adjusted Convolutional 符号とそのレートレス符号への応用”, 信学技報, 2022年 5月.
旭 瑞歩，ヤチョンカ ワムア，八木 秀樹, “一般化ハミング重みを用いたポーラ符号の送信ビット選択方法”, 信学技報, 2020年7月 (オンライ開催).
黒須 礼尚，ヤチョンカ ワムア，八木 秀樹 “BICM に適したポーラ符号における polarization 重みを用いた情報インデックス選択の検討”, 信学技報, 2022年 3月.
V. Yachongka and H. Yagi, “A new characterization of the capacity region of biometric identification systems under noisy enrollment”, 情報理論とその応用シンポジウム (SITA2019), 2019年 10月.
L. Chen, V. Yachongka, and H. Yagi, “Sum-capacity rergion of an SRAM-PUF multi-enrollment rate-constrained system”, 情報理論とその応用シンポジウム (SITA2019), 2019年 10月.
V. Yachongka and H. Yagi, “Fundamental trade-off among identification, secrecy, template, and privacy-leakage rates in biometric identification system”, 情報理論とその応用シンポジウム (SITA2018), 2018年 12月.
ヤチョンカ ワムア，八木 秀樹, “生体識別システムにおける圧縮・秘密・識別のレート組の容量域”, 信学技報, 2018年 1月.