Hiroaki Kikuchi

186 papers A 2B 36C 13Misc 9Journal 53Unranked 73

Year	Rank	Type	Title / Venue / Authors
2025	J	`jnl`	Data Poisoning Attacks to Locally Differentially Private Range Query Protocols. CoRR Ting-Wei Liao, Chih-Hsun Lin, Yu-Lin Tsai, Takao Murakami, Chia-Mu Yu, Jun Sakuma, Chun-Ying Huang, Hiroaki Kikuchi
2025	B	`conf`	Differential Private Risk Factors Analysis of Polypharmacy. MDAI Hiroaki Kikuchi, Andres Hernandez-Matamoros
2025	—	`conf`	Empirical Evaluation of Record Reconstruction Risk from Model Explanations with Differential Privacy. JSAI-isAI Ryotaro Toma, Hiroaki Kikuchi
2025	—	`conf`	Fine-Grained Data Poisoning Attack to Local Differential Privacy Protocols for Key-Value Data. ESORICS (1) Terumi Yaguchi, Hiroaki Kikuchi
2025	—	`conf`	Honey-Proxy: Revealing Malicious Activities via Residential Proxies. AINA (5) Hiroaki Kikuchi, Ryuichi Moriya, Takumi Kitahara, Hikari Fukuda
2025	—	`conf`	No Anonymity in Metaverse: VR User Identification Based on DTW Distance of Head-and-Arms Motions. AsiaJCIS Koki Miura, Hiroaki Kikuchi
2024	B	`conf`	A Poisoning-Resilient LDP Schema Leveraging Oblivious Transfer with the Hadamard Transform. MDAI Masahiro Shimizu, Hiroaki Kikuchi
2024	—	`conf`	Cancer Risk Evaluation with Diabetes Mellitus by a Large Medical Claims Dataset. SCIS/ISIS Keita Fukuyama, Yukiko Mori, Tomohiro Kuroda, Hiroaki Kikuchi
2024	C	`conf`	Combinations of AI Models and XAI Metrics Vulnerable to Record Reconstruction Risk. PSD Ryotaro Toma, Hiroaki Kikuchi
2024	C	`conf`	Meaningful Performance Analysis on Healthcare Data Under Local Differential Privacy. SoMeT Andres Hernandez-Matamoros, Hiroaki Kikuchi
2024	B	`ed.`	Modeling Decisions for Artificial Intelligence - 21st International Conference, MDAI 2024, Tokyo, Japan, August 27-31, 2024, Proceedings MDAI Vicenç Torra, Yasuo Narukawa, Hiroaki Kikuchi
2024	—	`conf`	Secure Aggregation of Smartwatch Health Data with LDP. SocialSec Andres Hernandez-Matamoros, Hiroaki Kikuchi
2023	C	`conf`	An Efficient Local Differential Privacy Scheme Using Bayesian Ridge Regression. PST Andres Hernandez-Matamoros, Hiroaki Kikuchi
2023	J	`jnl`	Attacker models with a variety of background knowledge to de-identified data. J. Ambient Intell. Humaniz. Comput. Satoshi Ito, Hiroaki Kikuchi, Hiroshi Nakagawa
2023	J	`jnl`	Designing a Location Trace Anonymization Contest. Proc. Priv. Enhancing Technol. Takao Murakami, Hiromi Arai, Koki Hamada, Takuma Hatano, Makoto Iguchi, Hiroaki Kikuchi, Atsushi Kuromasa, Hiroshi Nakagawa, Yuichi Nakamura, Kenshiro Nishiyama, Ryo Nojima, Hidenobu Oguri, Chiemi Watanabe, Akira Yamada, Takayasu Yamaguchi, Yuji Yamaoka
2023	J	`jnl`	Estimation of cost of k-anonymity in the number of dummy records. J. Ambient Intell. Humaniz. Comput. Satoshi Ito, Hiroaki Kikuchi
2023	—	`conf`	Expectation-Maximization Estimation for Key-Value Data Randomized with Local Differential Privacy. AINA (2) Hikaru Horigome, Hiroaki Kikuchi, Chia-Mu Yu
2023	—	`conf`	Failure of Privacy Policy for Session Replay Services Used for Monitor Your Keystroke. NBiS Daichi Kajima, Hiroaki Kikuchi
2023	B	`conf`	Local Differential Privacy Protocol for Making Key-Value Data Robust Against Poisoning Attacks. MDAI Hikaru Horigome, Hiroaki Kikuchi, Chia-Mu Yu
2023	—	`conf`	Multiple Person Tracking Based on Gait Identification Using Kinect and OpenPose. MSPN Ryotaro Toma, Terumi Yaguchi, Hiroaki Kikuchi
2023	B	`conf`	New LDP Approach Using VAE. NSS Andres Hernandez-Matamoros, Hiroaki Kikuchi
2023	Misc	`conf`	Privacy-Preserving Clustering for Multi-dimensional Data Randomization Under LDP. SEC Hiroaki Kikuchi
2023	B	`conf`	Targeted Ads Analysis: What are The most Targeted Personas? IEEE Big Data Hiroaki Kikuchi, Ayaka Aoyama
2022	C	`conf`	A Vulnerability in Video Anonymization - Privacy Disclosure from Face-obfuscated video. PST Hiroaki Kikuchi, Shun Miyoshi, Takafumi Mori, Andres Hernandez-Matamoros
2022	J	`jnl`	Castell: Scalable Joint Probability Estimation of Multi-dimensional Data Randomized with Local Differential Privacy. CoRR Hiroaki Kikuchi
2022	B	`conf`	Improvement of Estimate Distribution with Local Differential Privacy. MDAI Hikaru Horigome, Hiroaki Kikuchi
2022	J	`jnl`	Proposal of anonymization dictionary using disclosed statements by business operators. Internet Things Masahiro Fujita, Yasuoki Iida, Mitsuhiro Hattori, Tadakazu Yamanaka, Nori Matsuda, Satoshi Ito, Hiroaki Kikuchi
2021	—	`conf`	Best Security Measures to Reduce Cyber-Incident and Data Breach Risks. DPM/CBT@ESORICS Hiroaki Kikuchi, Michihiro Yamada, Kazuki Ikegami, Koji Inui
2021	J	`jnl`	Designing a Location Trace Anonymization Contest. CoRR Takao Murakami, Hiromi Arai, Koki Hamada, Takuma Hatano, Makoto Iguchi, Hiroaki Kikuchi, Atsushi Kuromasa, Hiroshi Nakagawa, Yuichi Nakamura, Kenshiro Nishiyama, Ryo Nojima, Hidenobu Oguri, Chiemi Watanabe, Akira Yamada, Takayasu Yamaguchi, Yuji Yamaoka
2021	C	`conf`	More Accurate and Robust PRNU-Based Source Camera Identification with 3-Step 3-Class Approach. IWDW Annjhih Hsiao, Takao Takenouchi, Hiroaki Kikuchi, Kazuo Sakiyama, Noriyuki Miura
2021	—	`conf`	Proposal and Development of Anonymization Dictionary Using Public Information Disclosed by Anonymously Processed Information Handling Business Operators. IMIS Masahiro Fujita, Yasuoki Iida, Mitsuhiro Hattori, Tadakazu Yamanaka, Nori Matsuda, Satoshi Ito, Hiroaki Kikuchi
2021	—	`conf`	Reidentification Risk from Pseudonymized Customer Payment History. AINA (2) Hiroaki Kikuchi
2021	—	`conf`	Vulnerability Exploiting SMS Push Notifications. AsiaJCIS Rina Shibayama, Hiroaki Kikuchi
2021	—	`conf`	Vulnerability of Privacy Visor Used to Disrupt Unauthorized Face Recognition. DSC Hiroaki Kikuchi, Kazuki Eto, Kazushi Waki, Takafumi Mori
2021	—	`conf`	Web Crawler for an Anonymously Processed Information Database. IMIS Hiroaki Kikuchi, Atsuki Ono, Satoshi Ito, Masahiro Fujita, Tadakazu Yamanaka
2020	—	`conf`	Address Usage Estimation Based on Bitcoin Traffic Behavior. NBiS Hiroki Matsumoto, Shusei Igaki, Hiroaki Kikuchi
2020	Misc	`conf`	Analysis on Malicious Residential Hosts Activities Exploited by Residential IP Proxy Services. WISA Akihiro Hanzawa, Hiroaki Kikuchi
2020	J	`jnl`	De-identification for Transaction Data Secure against Re-identification Risk Based on Payment Records. J. Inf. Process. Satoshi Ito, Reo Harada, Hiroaki Kikuchi
2020	—	`conf`	Differentially Private Profiling of Anonymized Customer Purchase Records. DPM/CBT@ESORICS Hiroaki Kikuchi
2020	—	`conf`	Modeling the Risk of Data Breach Incidents at the Firm Level. IMIS Kazuki Ikegami, Hiroaki Kikuchi
2020	J	`jnl`	Secure hierarchical Bitcoin wallet scheme against privilege escalation attacks. Int. J. Inf. Sec. Chun-I Fan, Yi-Fan Tseng, Hui-Po Su, Ruei-Hau Hsu, Hiroaki Kikuchi
2020	J	`jnl`	Special Issue on FinTech Security and Privacy. Future Gener. Comput. Syst. Kuo-Hui Yeh, Robert H. Deng, Hiroaki Kikuchi
2019	—	`conf`	Development of a Cyber Incident Information Crawler. IMIS Kazuki Ikegami, Michihiro Yamada, Hiroaki Kikuchi, Koji Inui
2019	C	`conf`	Mathematical Model to Estimate Loss by Cyber Incident in Japan. ICISSP Michihiro Yamada, Hiroaki Kikuchi, Naoki Matsuyama, Koji Inui
2019	C	`conf`	Robust Person Identification based on DTW Distance of Multiple-Joint Gait Pattern. ICISSP Takafumi Mori, Hiroaki Kikuchi
2018	J	`jnl`	Anonymization methods and inference attacks: theory and practice (NII Shonan Meeting 2018-5). NII Shonan Meet. Rep. Hiroaki Kikuchi, Josep Domingo-Ferrer, Sébastien Gambs
2018	—	`conf`	Development of White List Based Autonomous Evolution of Defense System for RAT Malware. AsiaJCIS Tomohiro Shigemoto, Shota Fujii, Ichiro Kuriama, Tetsuro Kito, Hirofumi Nakakoji, Yasuhiro Fujii, Hiroaki Kikuchi
2018	C	`conf`	Evaluation and Development of Onomatopoeia CAPTCHAs. PST Michihiro Yamada, Riko Shigeno, Hiroaki Kikuchi, Maki Sakamoto
2018	J	`jnl`	How to Handle Excessively Anonymized Datasets. J. Inf. Process. Ryo Nojima, Hidenobu Oguri, Hiroaki Kikuchi, Hiroshi Nakagawa, Koki Hamada, Takao Murakami, Yuji Yamaoka, Chiemi Watanabe
2018	—	`conf`	Impact Assessment of Password Reset PRMitM Attack with Two-Factor Authentication. DSC Kota Sasa, Hiroaki Kikuchi
2018	C	`ed.`	Information Security Practice and Experience - 14th International Conference, ISPEC 2018, Tokyo, Japan, September 25-27, 2018, Proceedings ISPEC Chunhua Su, Hiroaki Kikuchi
2018	—	`conf`	Person Tracking Based on Gait Features from Depth Sensors. NBiS Takafumi Mori, Hiroaki Kikuchi
2018	B	`conf`	Privacy Preserved Spectral Analysis Using IoT mHealth Biomedical Data for Stress Estimation. AINA Xuping Huang, Hiroaki Kikuchi, Chun-I Fan
2018	J	`jnl`	Privacy-Preserving Hypothesis Testing for Reduced Cancer Risk on Daily Physical Activity. J. Medical Syst. Hiroaki Kikuchi, Xuping Huang, Shigeta Ikuji, Manami Inoue
2018	J	`jnl`	Privacy-Preserving Multiple Linear Regression of Vertically Partitioned Real Medical Datasets. J. Inf. Process. Hiroaki Kikuchi, Chika Hamanaga, Hideo Yasunaga, Hiroki Matsui, Hideki Hashimoto, Chun-I Fan
2018	J	`jnl`	Probably Secure Efficient Anonymous Credential Scheme. Int. J. Softw. Innov. Chien-Nan Wu, Chun-I Fan, Jheng-Jia Huang, Yi-Fan Tseng, Hiroaki Kikuchi
2018	—	`conf`	Risk of Bitcoin Addresses to be Identified from Features of Output Addresses. DSC Kodai Nagata, Hiroaki Kikuchi, Chun-I Fan
2018	B	`conf`	Risk of Re-identification from Payment Card Histories in Multiple Domains. AINA Satoshi Ito, Reo Harada, Hiroaki Kikuchi
2018	—	`conf`	Secure Hierarchical Bitcoin Wallet Scheme Against Privilege Escalation Attacks. DSC Chun-I Fan, Yi-Fan Tseng, Hui-Po Su, Ruei-Hau Hsu, Hiroaki Kikuchi
2018	J	`jnl`	Study on Record Linkage of Anonymizied Data. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. Hiroaki Kikuchi, Takayasu Yamaguchi, Koki Hamada, Yuji Yamaoka, Hidenobu Oguri, Jun Sakuma
2017	J	`jnl`	A Spatio-Temporal malware and country clustering algorithm: 2012 IIJ MITF case study. Int. J. Inf. Sec. Khamphao Sisaat, Surin Kittitornkun, Hiroaki Kikuchi, Chaxiong Yukonhiatou, Masato Terada, Hiroshi Ishii
2017	B	`ed.`	Applied Cryptography and Network Security - 15th International Conference, ACNS 2017, Kanazawa, Japan, July 10-12, 2017, Proceedings ACNS Dieter Gollmann, Atsuko Miyaji, Hiroaki Kikuchi
2017	B	`conf`	Audio-CAPTCHA with distinction between random phoneme sequences and words spoken by multi-speaker. SMC Michitomo Yamaguchi, Hiroaki Kikuchi
2017	—	`conf`	Decision Tree Analysis on Environmental Factors of Insider Threats. HCI (30) Michihiro Yamada, Koichi Niihara, Hiroaki Kikuchi
2017	—	`conf`	How Much is Risk Increased by Sharing Credential in Group? STM Hiroaki Kikuchi, Koichi Niihara, Michihiro Yamada
2017	J	`jnl`	Multireceiver Predicate Encryption for Online Social Networks. IEEE Trans. Signal Inf. Process. over Networks Chun-I Fan, Yi-Fan Tseng, Jheng-Jia Huang, Shih-Fen Chen, Hiroaki Kikuchi
2017	B	`conf`	Privacy-Preserving Multiple Linear Regression of Vertically Partitioned Real Medical Datasets. AINA Hiroaki Kikuchi, Chika Hamanaga, Hideo Yasunaga, Hiroki Matsui, Hideki Hashimoto
2017	—	`conf`	Risk of Re-Identification Based on Euclidean Distance in Anonymized Data NBiS Satoshi Ito, Hiroaki Kikuchi
2017	—	`conf`	Sharing or Non-sharing Credentials: A Study of What Motivates People to Be Malicious Insiders. HCI (22) Koichi Niihara, Michihiro Yamada, Hiroaki Kikuchi
2016	—	`conf`	A Study from the Data Anonymization Competition Pwscup 2015. DPM/QASA@ESORICS Hiroaki Kikuchi, Takayasu Yamaguchi, Koki Hamada, Yuji Yamaoka, Hidenobu Oguri, Jun Sakuma
2016	—	`conf`	Efficient Privacy-Preserving Logistic Regression with Iteratively Re-weighted Least Squares. AsiaJCIS Hiroaki Kikuchi, Hideo Yasunaga, Hiroki Matsui, Chun-I Fan
2016	—	`conf`	Flexible Authentication Protocol with Key Reconstruction in WBAN Environments. ICITCS Chun-I Fan, Jian-Sheng Wang, Jheng-Jia Huang, Yi-Fan Tseng, Wen-Shenq Juang, Hiroaki Kikuchi
2016	B	`conf`	Ice and Fire: Quantifying the Risk of Re-identification and Utility in Data Anonymization. AINA Hiroaki Kikuchi, Takayasu Yamaguchi, Koki Hamada, Yuji Yamaoka, Hidenobu Oguri, Jun Sakuma
2016	—	`conf`	Interactive History Sniffing Attack with Amida Lottery. IMIS Hiroaki Kikuchi, Kota Sasa, Yuta Shimizu
2016	—	`conf`	Lightweight Authentication Scheme with Dynamic Group Members in IoT Environments. MobiQuitous (Adjunct Proceedings) Jheng-Jia Huang, Wen-Shenq Juang, Chun-I Fan, Yi-Fan Tseng, Hiroaki Kikuchi
2016	—	`conf`	Primary Factors of Malicious Insider in E-learning Model. HCI (26) Koichi Niihara, Hiroaki Kikuchi
2016	—	`conf`	Proposal and Evaluation of Cyber Defense System Using Blacklist Refined Based on Authentication Results. NBiS Hirofumi Nakakoji, Yasuhiro Fujii, Yoshiaki Isobe, Tomohiro Shigemoto, Tetsuro Kito, Naoki Hayashi, Nobutaka Kawaguchi, Naoki Shimotsuma, Hiroaki Kikuchi
2016	J	`jnl`	Recursive-Rule Extraction Algorithm With J48graft And Applications To Generating Credit Scores. J. Artif. Intell. Soft Comput. Res. Yoichi Hayashi, Yuki Tanaka, Tomohiro Takagi, Takamichi Saito, Hideaki Iiduka, Hiroaki Kikuchi, Guido Bologna, Sushmita Mitra
2016	J	`jnl`	SWIPASS: Image-Based User Authentication for Touch Screen Devices. J. Inf. Process. Masafumi Kosugi, Tsuyoshi Suzuki, Osamu Uchida, Hiroaki Kikuchi
2016	J	`jnl`	Zipf Distribution Model for Quantifying Risk of Re-identification from Trajectory Data. J. Inf. Process. Hiroaki Kikuchi, Katsumi Takahashi
2015	—	`conf`	Automated Detection of Drive-By Download Attack. IMIS Hiroaki Kikuchi, Hiroaki Matsumoto, Hiroshi Ishii
2015	—	`conf`	CAPTCHA System by Differentiating the Awkwardness of Objects. NBiS Michitomo Yamaguchi, Takeshi Okamoto, Hiroaki Kikuchi
2015	B	`conf`	Cryptographic Operation Load-Balancing between Cryptographic Module and CPU. AINA Yohei Kaneko, Takamichi Saito, Hiroaki Kikuchi
2015	J	`jnl`	Privacy-Preserving Decision Tree Learning with Boolean Target Class. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. Hiroaki Kikuchi, Kouichi Itoh, Mebae Ushida, Hiroshi Tsuda, Yuji Yamaoka
2015	—	`conf`	Privacy-Preserving Epidemiological Analysis for a Distributed Database of Hospitals. AsiaJCIS Hiroaki Kikuchi, Hideki Hashimoto, Hideo Yasunaga
2015	B	`conf`	Scalability of Privacy-Preserving Linear Regression in Epidemiological Studies. AINA Hiroaki Kikuchi, Hideki Hashimoto, Hideo Yasunaga, Takamichi Saito
2015	C	`conf`	Zipf distribution model for quantifying risk of re-identification from trajectory data. PST Hiroaki Kikuchi, Katsumi Takahashi
2014	—	`conf`	An Accessible CAPTCHA System for People with Visual Disability - Generation of Human/Computer Distinguish Test with Documents on the Net. HCI (7) Michitomo Yamaguchi, Toru Nakata, Takeshi Okamoto, Hiroaki Kikuchi
2014	J	`jnl`	Bloom Filter Bootstrap: Privacy-Preserving Estimation of the Size of an Intersection. J. Inf. Process. Hiroaki Kikuchi, Jun Sakuma
2014	—	`conf`	On the Vulnerability of Ghost Domain Names. IMIS Hiroaki Kikuchi, Tomohiro Arimizu
2014	—	`conf`	Privacy-Preserving Dose-Response Relationship Test. NBiS Hiroaki Kikuchi, Tomoki Sato, Jun Sakuma
2014	B	`conf`	Privacy-Preserving Hypothesis Testing for the Analysis of Epidemiological Medical Data. AINA Hiroaki Kikuchi, Tomoki Sato, Jun Sakuma
2014	—	`conf`	Secret Sharing Scheme with Efficient Keyword Search for Cloud Storage. AsiaJCIS Hiroaki Kikuchi, Kouichi Itoh, Mebae Ushida, Yuji Yamaoka, Takanori Oikawa
2014	B	`conf`	Vulnerability of the conventional accessible CAPTCHA used by the White House and an alternative approach for visually impaired people. SMC Michitomo Yamaguchi, Toru Nakata, Hajime Watanabe, Takeshi Okamoto, Hiroaki Kikuchi
2013	B	`conf`	Bloom Filter Bootstrap: Privacy-Preserving Estimation of the Size of an Intersection. DBSec Hiroaki Kikuchi, Jun Sakuma
2013	—	`conf`	Location Privacy Vulnerable from Bluetooth Devices. NBiS Hiroaki Kikuchi, Takeru Yokomizo
2013	J	`jnl`	Mining Botnet Coordinated Attacks using Inf. Media Technol. Masayuki Ohrui, Hiroaki Kikuchi, Nur Rohman Rosyid, Masato Terada
2013	J	`jnl`	Mining Botnet Coordinated Attacks using Apriori-PrefixSpan Hybrid Algorithm. J. Inf. Process. Masayuki Ohrui, Hiroaki Kikuchi, Nur Rohman Rosyid, Masato Terada
2013	A	`conf`	Nondestructive evaluation of hardness using AC permeability and impedance analysis. ICST Hiroaki Kikuchi, Fumiya Ito, Shogo Daimon
2013	—	`conf`	Privacy-Preserving Collaborative Filtering on the Cloud and Practical Implementation Experiences. IEEE CLOUD Anirban Basu, Jaideep Vaidya, Hiroaki Kikuchi, Theo Dimitrakos
2013	B	`conf`	Privacy-Preserving Distributed Decision Tree Learning with Boolean Class Attributes. AINA Hiroaki Kikuchi, Kouichi Itoh, Mebae Ushida, Hiroshi Tsuda, Yuji Yamaoka
2013	—	`conf`	Privacy-Preserving Protocol for Epidemiology in Effect of Radiation. IMIS Hiroaki Kikuchi, Tomoki Sato, Jun Sakuma
2013	J	`jnl`	Privacy-preserving Collaborative Filtering Using Randomized Response. Inf. Media Technol. Hiroaki Kikuchi, Anna Mochizuki
2013	J	`jnl`	Privacy-preserving Collaborative Filtering Using Randomized Response. J. Inf. Process. Hiroaki Kikuchi, Anna Mochizuki
2013	J	`jnl`	Scalable Privacy-Preserving Data Mining with Asynchronously Partitioned Datasets. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. Hiroaki Kikuchi, Daisuke Kagawa, Anirban Basu, Kazuhiko Ishii, Masayuki Terada, Sadayuki Hongo
2013	J	`jnl`	Time Zone Correlation Analysis of Malware/Bot Downloads. IEICE Trans. Commun. Khamphao Sisaat, Hiroaki Kikuchi, Shunji Matsuo, Masato Terada, Masashi Fujiwara, Surin Kittitornkun
2012	—	`conf`	Accuracy of Privacy-Preserving Collaborative Filtering Based on Quasi-homomorphic Similarity. UIC/ATC Hiroaki Kikuchi, Yoshiki Aoki, Masayuki Terada, Kazuhiko Ishii, Kimihiko Sekino
2012	Misc	`conf`	Feasibility of a privacy preserving collaborative filtering scheme on the Google App Engine: a performance case study. SAC Anirban Basu, Jaideep Vaidya, Theo Dimitrakos, Hiroaki Kikuchi
2012	—	`conf`	Geographical Visualization of Malware Download for Anomaly Detection. AsiaJCIS N. Hiroguchi, Hiroaki Kikuchi, Khamphao Sisaat, Surin Kittitornkun
2012	—	`conf`	Perturbation Based Privacy Preserving Slope One Predictors for Collaborative Filtering. IFIPTM Anirban Basu, Jaideep Vaidya, Hiroaki Kikuchi
2012	J	`jnl`	Privacy preserving collaborative filtering for SaaS enabling PaaS clouds. J. Cloud Comput. Anirban Basu, Jaideep Vaidya, Hiroaki Kikuchi, Theo Dimitrakos, Srijith K. Nair
2012	—	`conf`	Privacy-Preserving Collaborative Filtering Using Randomized Response. IMIS Hiroaki Kikuchi, Anna Mochizuki
2012	—	`conf`	Synthesis of Secure Passwords. AsiaJCIS Tomoki Sato, Hiroaki Kikuchi
2012	—	`conf`	Word Salad CAPTCHA - Application and Evaluation of Synthesized Sentences. NBiS Yoshifumi Kamoshida, Hiroaki Kikuchi
2011	J	`jnl`	Analysis on the Sequential Behavior of Malware Attacks. IEICE Trans. Inf. Syst. Nur Rohman Rosyid, Masayuki Ohrui, Hiroaki Kikuchi, Pitikhate Sooraksa, Masato Terada
2011	—	`conf`	Apriori-PrefixSpan Hybrid Approach for Automated Detection of Botnet Coordinated Attacks. NBiS Masayuki Ohrui, Hiroaki Kikuchi, Masato Terada, Nur Rohman Rosyid
2011	—	`conf`	Distributed Collaborative Filtering Protocol Based on Quasi-homomorphic Similarity. IMIS Hiroaki Kikuchi, Yoshiki Aoki, Masayuki Terada, Kazuhiko Ishii, Kimihiko Sekino
2011	J	`jnl`	Efficient Privacy-Preserving Collaborative Filtering Based on the Weighted Slope One Predictor. J. Internet Serv. Inf. Secur. Anirban Basu, Jaideep Vaidya, Hiroaki Kikuchi
2011	—	`conf`	Improving Efficiency in Privacy-Preserving Automated Trust Negotiation with Conjunctive Policies. NBiS Tangtisanon Pikulkaew, Hiroaki Kikuchi
2011	B	`conf`	Perfect Privacy Preserving in Automated Trust Negotiation. AINA Hiroaki Kikuchi, Tangtisanon Pikulkaew
2011	J	`jnl`	Perfect Privacy-preserving Automated Trust Negotiation. Inf. Media Technol. Tangtisanon Pikulkaew, Hiroaki Kikuchi
2011	J	`jnl`	Perfect Privacy-preserving Automated Trust Negotiation. J. Inf. Process. Tangtisanon Pikulkaew, Hiroaki Kikuchi
2011	J	`jnl`	Principal Component Analysis of Botnet Takeover. Inf. Media Technol. Hiroaki Kikuchi, Shuji Matsuo, Masato Terada
2011	J	`jnl`	Principal Component Analysis of Botnet Takeover. J. Inf. Process. Hiroaki Kikuchi, Shuji Matsuo, Masato Terada
2011	C	`conf`	Privacy-preserving Collaborative Filtering for the Cloud. CloudCom Anirban Basu, Jaideep Vaidya, Hiroaki Kikuchi, Theo Dimitrakos
2011	Misc	`conf`	Scalable Privacy-Preserving Data Mining with Asynchronously Partitioned Datasets. SEC Hiroaki Kikuchi, Daisuke Kagawa, Anirban Basu, Kazuhiko Ishii, Masayuki Terada, Sadayuki Hongo
2010	B	`conf`	A discovery of sequential attack patterns of malware in botnets. SMC Nur Rohman Rosyid, Masayuki Ohrui, Hiroaki Kikuchi, Pitikhate Sooraksa, Masato Terada
2010	J	`jnl`	Foreword. IEICE Trans. Inf. Syst. Hiroaki Kikuchi
2010	B	`conf`	Heuristics for Detecting Botnet Coordinated Attacks. ARES Kazuya Kuwabara, Hiroaki Kikuchi, Masato Terada, Masashi Fujiwara
2010	—	`conf`	Mining Association Rules Consisting of Download Servers from Distributed Honeypot Observation. NBiS Masayuki Ohrui, Hiroaki Kikuchi, Masato Terada
2010	J	`jnl`	Principal Component Analysis of Port-scans for Reduction of Distributed Sensors. Inf. Media Technol. Hiroaki Kikuchi, Masato Terada
2010	J	`jnl`	Principal Component Analysis of Port-scans for Reduction of Distributed Sensors. J. Inf. Process. Hiroaki Kikuchi, Masato Terada
2010	B	`conf`	Privacy-Preserving Collaborative Filtering Protocol Based on Similarity between Items. AINA Minako Tada, Hiroaki Kikuchi, Sutheera Puntheeranurak
2010	J	`jnl`	Privacy-preserving similarity evaluation and application to remote biometrics authentication. Soft Comput. Hiroaki Kikuchi, Kei Nagai, Wakaha Ogata, Masakatsu Nishigaki
2009	Misc	`conf`	A Proposal of Efficient Remote Biometric Authentication Protocol. IWSEC Taiki Sakashita, Yoichi Shibata, Takumi Yamamoto, Kenta Takahashi, Wakaha Ogata, Hiroaki Kikuchi, Masakatsu Nishigaki
2009	C	`conf`	A Storage Efficient Redactable Signature in the Standard Model. ISC Ryo Nojima, Jin Tamura, Youki Kadobayashi, Hiroaki Kikuchi
2009	A	`conf`	A Study of User-Friendly Hash Comparison Schemes. ACSAC Hsu-Chun Hsiao, Yue-Hsun Lin, Ahren Studer, Cassandra Studer, King-Hang Wang, Hiroaki Kikuchi, Adrian Perrig, Hung-Min Sun, Bo-Yin Yang
2009	J	`jnl`	Multiparty Computation from El Gamal/Paillier Conversion. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. Koji Chida, Hiroaki Kikuchi, Keiichi Hirota, Gembu Morohashi
2009	—	`conf`	Orthogonal Expansion of Port-scanning Packets. NBiS Hiroaki Kikuchi, Tomohiro Kobori, Masato Terada
2009	B	`conf`	Privacy-Preserving Collaborative Filtering Schemes. ARES Hiroaki Kikuchi, Hiroyasu Kizawa, Minako Tada
2008	B	`conf`	Automated Classification of Port-Scans from Distributed Sensors. AINA Hiroaki Kikuchi, Naoya Fukuno, Tomohiro Kobori, Masato Terada, Tangtisanon Pikulkaew
2008	J	`jnl`	Automated Port-scan Classification with Decision Tree and Distributed Sensors. Inf. Media Technol. Hiroaki Kikuchi, Naoya Fukuno, Tomohiro Kobori, Masato Terada, Tangtisanon Pikulkaew
2008	J	`jnl`	Automated Port-scan Classification with Decision Tree and Distributed Sensors. J. Inf. Process. Hiroaki Kikuchi, Naoya Fukuno, Tomohiro Kobori, Masato Terada, Tangtisanon Pikulkaew
2008	J	`jnl`	Estimation of Increase of Scanners Based on ISDAS Distributed Sensors. Inf. Media Technol. Hiroaki Kikuchi, Masato Terada, Naoya Fukuno, Norihisa Doi
2008	J	`jnl`	Estimation of Increase of Scanners Based on ISDAS Distributed Sensors. J. Inf. Process. Hiroaki Kikuchi, Masato Terada, Naoya Fukuno, Norihisa Doi
2008	B	`conf`	Internet Observation with ISDAS: How Long Does a Worm Perform Scanning? ARES Tomohiro Kobori, Hiroaki Kikuchi, Masato Terada
2008	J	`jnl`	Multi-Bit Embedding in Asymmetric Digital Watermarking without Exposing Secret Information. IEICE Trans. Inf. Syst. Mitsuo Okada, Hiroaki Kikuchi, Yasuo Okabe
2008	—	`conf`	Principal Components of Port-Address Matrices in Port-Scan Analysis. OTM Conferences (2) Hiroaki Kikuchi, Naoya Fukuno, Masato Terada, Norihisa Doi
2008	B	`conf`	Privacy-Preserving Similarity Evaluation and Application to Remote Biometrics Authentication. MDAI Hiroaki Kikuchi, Kei Nagai, Wakaha Ogata, Masakatsu Nishigaki
2008	J	`jnl`	Secure Multiparty Computation for Comparator Networks. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. Gembu Morohashi, Koji Chida, Keiichi Hirota, Hiroaki Kikuchi
2007	Misc	`ed.`	Advances in Information and Computer Security, Second International Workshop on Security, IWSEC 2007, Nara, Japan, October 29-31, 2007, Proceedings IWSEC Atsuko Miyaji, Hiroaki Kikuchi, Kai Rannenberg
2007	J	`jnl`	Cryptanalysis of Modification to Self-Certified Group-Oriented Cryptosystem without A Combiner. Int. J. Netw. Secur. Willy Susilo, Hiroaki Kikuchi
2007	B	`conf`	Efficient Multiparty Computation for Comparator Networks. ARES Koji Chida, Hiroaki Kikuchi, Gembu Morohashi, Keiichi Hirota
2007	—	`conf`	Estimation of Behavior of Scanners Based on ISDAS Distributed Sensors. OTM Conferences (2) Hiroaki Kikuchi, Masato Terada, Naoya Fukuno, Norihisa Doi
2007	B	`conf`	Evaluation and implement of fuzzy vault scheme using indexed minutiae. SMC Hiroaki Kikuchi, Yasunori Onuki, Kei Nagai
2007	—	`conf`	Online and Offline Presence Information Integrated with RFID and Instant Messaging Agent. AINA Workshops (1) Hiroaki Kikuchi, Yuichi Nakamura
2007	B	`conf`	ZeroBio - Evaluation and Development of Asymmetric Fingerprint Authentication System Using Oblivious Neural Network Evaluation Protocol. ARES Kei Nagai, Hiroaki Kikuchi, Wakaha Ogata, Masakatsu Nishigaki
2006	—	`conf`	Dual RSA Accumulators and Its Application for Private Revocation Check. AINA (1) Hiroaki Kikuchi
2006	Misc	`conf`	How Many Malicious Scanners Are in the Internet? WISA Hiroaki Kikuchi, Masato Terada
2005	B	`conf`	Efficient Key Management Based on the Subset Difference Method for Secure Group Communication. AINA Yuichi Nakamura, Hiroaki Kikuchi
2005	B	`conf`	Privacy Preserving Web-Based Questionnaire. AINA Junji Nakazato, Kenji Fujimoto, Hiroaki Kikuchi
2005	Misc	`conf`	Secure Asymmetric Watermark Detection Without Secret of Modified Pixels. WISA Mitsuo Okada, Hiroaki Kikuchi
2005	B	`conf`	Webpage clustering - automated classification into jointly classified groups. SMC Hiroaki Kikuchi
2004	J	`jnl`	Applications of Fuzzy Logic Functions to Knowledge Discovery in Databases. Trans. Rough Sets Noboru Takagi, Hiroaki Kikuchi, Masao Mukaidono
2004	Misc	`conf`	ModInt: Compact Modular Arithmatic Class Library Available on Cellular Phone and its Application to Secure Electronic Voting System. SEC Hiroaki Kikuchi, Junji Nakazato
2004	B	`conf`	Rabin Tree and Its Application to Group Key Distribution. ATVA Hiroaki Kikuchi
2004	—	`conf`	Secure Instant Messaging Protocol Preserving Confidentiality against Administrator. AINA (2) Hiroaki Kikuchi, Minako Tada, Shohachiro Nakanishi
2002	J	`jnl`	( IEICE Trans. Fundam. Electron. Commun. Comput. Sci. Hiroaki Kikuchi
2002	J	`jnl`	Hierarchical fuzzy modeling and jointly expandable functions. Int. J. Intell. Syst. Hiroaki Kikuchi, Noboru Takagi
2002	C	`conf`	Oblivious Counter and Majority Protocol. ISC Hiroaki Kikuchi
2002	—	`conf`	de Morgan Bisemilattice of Fuzzy Truth Value. ISMVL Hiroaki Kikuchi, Noboru Takagi
2001	—	`conf`	(M+1)st-Price Auction Protocol. Financial Cryptography Hiroaki Kikuchi
2001	B	`conf`	Closures of Fuzzy Linguitic Trugh Value With Regards to the Extension Principle. FUZZ-IEEE Hiroaki Kikuchi
2001	—	`conf`	Identification of Incompletely Specified Fuzzy Unate Logic Function. ISMVL Hiroaki Kikuchi
2001	B	`conf`	Multi-Interval Truth Valued Logic. FUZZ-IEEE Noboru Takagi, Hiroaki Kikuchi, Kyoichi Nakashima
2001	—	`conf`	Power Auction Protocol without Revealing Winning Bids. ICOIN Hiroaki Kikuchi
2000	—	`conf`	Distributed auction servers resolving winner and winning bid without revealing privacy of bids. ICPADS Workshops Hiroaki Kikuchi, Shinji Hotta, Kensuke Abe, Shohachiro Nakanishi
1999	—	`conf`	Performance Evaluation of Certificate Revocation Using ISW Hiroaki Kikuchi, Kensuke Abe, Shohachiro Nakanishi
1999	—	`conf`	Performance Evaluation of Public-Key Certificate Revocation System with Balanced Hash Tree. ICPP Workshops Hiroaki Kikuchi, Kensuke Abe, Shohachiro Nakanishi
1998	—	`conf`	Electronic Auctions with Private Bids. USENIX Workshop on Electronic Commerce Michael Harkavy, J. Doug Tygar, Hiroaki Kikuchi
1998	J	`jnl`	Functional Completeness of Hierarchical Fuzzy Modeling. Inf. Sci. Hiroaki Kikuchi, Akihiro Ohtake, Shohachiro Nakanishi
1998	J	`jnl`	Identification of incompletely specified multiple-valued Kleenean functions. IEEE Trans. Syst. Man Cybern. Part A Noboru Takagi, Hiroaki Kikuchi, Kyoichi Nakashima, Masao Mukaidono
1997	—	`conf`	Fuzzy system identification for composite operation and fuzzy relation by genetic algorithms. KES (1) Shinobu Ohtani, Hiroaki Kikuchi, Ronald R. Yager, Shohachiro Nakanishi
1995	—	`conf`	A Characterization of Kleenean Functions. ISMVL Noboru Takagi, Hiroaki Kikuchi, Kyoichi Nakashima, Masao Mukaidono
1995	—	`conf`	Structure Identification of Acquired Knowledge in Fuzzy Inference by Genetic Algorithms. IEEE/Nagoya-University World Wisepersons Workshop Shohachiro Nakanishi, Akihiro Ohtake, Ronald R. Yager, Shinobu Ohtani, Hiroaki Kikuchi
1995	—	`conf`	Uniqueness of Partially Specified Multiple-Valued Kleenean Function. ISMVL Hiroaki Kikuchi, Noboru Takagi, Shohachiro Nakanishi, Masao Mukaidono