Japanese vowel recognition based on structural representation of speech. - Takao Murakami; Kazutaka Maruyama; Nobuaki Minematsu; Keikichi Hirose (INTERSPEECH, 2005)

Accuracy improvement with high convenience in biometric identification using multihypothesis sequential probability ratio test. - Takao Murakami; Kenta Takahashi (WIFS, 2009)

Fast and accurate biometric identification using score level indexing and fusion. - Takao Murakami; Kenta Takahashi (IJCB, 2011)

Versatile probability-based indexing for approximate similarity search. - Takao Murakami; Kenta Takahashi; Susumu Serita; Yasuhiro Fujii (SISAP, 2011)

Towards optimal countermeasures against wolves and lambs in biometrics. - Takao Murakami; Kenta Takahashi; Kanta Matsuura (BTAS, 2012)

Probabilistic enhancement of approximate indexing in metric spaces. - Takao Murakami; Kenta Takahashi; Susumu Serita; Yasuhiro Fujii (Inf. Syst., 2013)

Location prediction attacks using tensor factorization and optimal defenses. - Takao Murakami; Hajime Watanabe (IEEE BigData, 2014)

A General Framework and Algorithms for Score Level Indexing and Fusion in Biometric Identification. - Takao Murakami; Kenta Takahashi; Kanta Matsuura (IEICE Trans. Inf. Syst., 2014)

A measure of information gained through biometric systems. - Kenta Takahashi; Takao Murakami (Image Vis. Comput., 2014)

Toward Optimal Fusion Algorithms With Security Against Wolves and Lambs in Biometrics. - Takao Murakami; Kenta Takahashi; Kanta Matsuura (IEEE Trans. Inf. Forensics Secur., 2014)

A Signature Scheme with a Fuzzy Private Key. - Kenta Takahashi; Takahiro Matsuda 002; Takao Murakami; Goichiro Hanaoka; Masakatsu Nishigaki (ACNS, 2015)

Information-theoretic performance evaluation of likelihood-ratio based biometric score fusion under modality selection attacks. - Takao Murakami; Kenta Takahashi (BTAS, 2015)

Group Sparsity Tensor Factorization for De-anonymization of Mobility Traces. - Takao Murakami; Atsunori Kanemura; Hideitsu Hino (TrustCom/BigDataSE/ISPA (1), 2015)

Fuzzy Signatures: Relaxing Requirements and a New Construction. - Takahiro Matsuda 002; Kenta Takahashi; Takao Murakami; Goichiro Hanaoka (ACNS, 2016)

On restricting modalities in likelihood-ratio based biometric score fusion. - Takao Murakami; Yosuke Kaga; Kenta Takahashi (ICPR, 2016)

Information-Theoretic Performance Evaluation of Multibiometric Fusion under Modality Selection Attacks. - Takao Murakami; Yosuke Kaga; Kenta Takahashi (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2016)

Optimal sequential fusion for multibiometric cryptosystems. - Takao Murakami; Tetsushi Ohki; Kenta Takahashi (Inf. Fusion, 2016)

Localization Attacks Using Matrix and Tensor Factorization. - Takao Murakami; Hajime Watanabe (IEEE Trans. Inf. Forensics Secur., 2016)

A Secure and Practical Signature Scheme for Blockchain Based on Biometrics. - Yosuke Kaga; Masakazu Fujio; Ken Naganuma; Kenta Takahashi; Takao Murakami; Tetsushi Ohki; Masakatsu Nishigaki (ISPEC, 2017)

Model Inversion Attacks for Prediction Systems: Without Knowledge of Non-Sensitive Attributes. - Seira Hidano; Takao Murakami; Shuichi Katsumata; Shinsaku Kiyomoto; Goichiro Hanaoka (PST, 2017)

Signature Schemes with a Fuzzy Private Key. - Kenta Takahashi; Takahiro Matsuda 002; Takao Murakami; Goichiro Hanaoka; Masakatsu Nishigaki (IACR Cryptol. ePrint Arch., 2017)

Modality Selection Attacks and Modality Restriction in Likelihood-Ratio Based Biometric Score Fusion. - Takao Murakami; Yosuke Kaga; Kenta Takahashi (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2017)

Expectation-Maximization Tensor Factorization for Practical Location Privacy Attacks. - Takao Murakami (Proc. Priv. Enhancing Technol., 2017)

Group Sparsity Tensor Factorization for Re-Identification of Open Mobility Traces. - Takao Murakami; Atsunori Kanemura; Hideitsu Hino (IEEE Trans. Inf. Forensics Secur., 2017)

A Generalization of the Theory of Biometric System Entropy. - Kenta Takahashi; Takao Murakami (APSIPA, 2018)

Face/Fingerphoto Spoof Detection under Noisy Conditions by using Deep Convolutional Neural Network. - Masakazu Fujio; Yosuke Kaga; Takao Murakami; Tetsushi Ohki; Kenta Takahashi (BIOSIGNALS, 2018)

On the Anonymization of Differentially Private Location Obfuscation. - Yusuke Kawamoto 001; Takao Murakami (ISITA, 2018)

A Succinct Model for Re-identification of Mobility Traces Based on Small Training Data. - Takao Murakami (ISITA, 2018)

Restricted Local Differential Privacy for Distribution Estimation with High Data Utility. - Takao Murakami; Yusuke Kawamoto 001 (CoRR, 2018)

Differentially Private Obfuscation Mechanisms for Hiding Probability Distributions. - Yusuke Kawamoto 001; Takao Murakami (CoRR, 2018)

Model Inversion Attacks for Online Prediction Systems: Without Knowledge of Non-Sensitive Attributes. - Seira Hidano; Takao Murakami; Shuichi Katsumata; Shinsaku Kiyomoto; Goichiro Hanaoka (IEICE Trans. Inf. Syst., 2018)

How to Handle Excessively Anonymized Datasets. - Ryo Nojima; Hidenobu Oguri; Hiroaki Kikuchi; Hiroshi Nakagawa; Koki Hamada; Takao Murakami; Yuji Yamaoka; Chiemi Watanabe (J. Inf. Process., 2018)

Toward Distribution Estimation under Local Differential Privacy with Small Samples. - Takao Murakami; Hideitsu Hino; Jun Sakuma (Proc. Priv. Enhancing Technol., 2018)

Local Distribution Obfuscation via Probability Coupling*. - Yusuke Kawamoto 001; Takao Murakami (Allerton, 2019)

Local Obfuscation Mechanisms for Hiding Probability Distributions. - Yusuke Kawamoto 001; Takao Murakami (ESORICS (1), 2019)

Utility-Optimized Local Differential Privacy Mechanisms for Distribution Estimation. - Takao Murakami; Yusuke Kawamoto 001 (USENIX Security Symposium, 2019)

Cancelable Permutation-Based Indexing for Secure and Efficient Biometric Identification. - Takao Murakami; Ryo Fujita; Tetsushi Ohki; Yosuke Kaga; Masakazu Fujio; Kenta Takahashi (IEEE Access, 2019)

Local Distribution Obfuscation via Probability Coupling. - Yusuke Kawamoto 001; Takao Murakami (CoRR, 2019)

Privacy-Preserving Multiple Tensor Factorization for Synthesizing Large-Scale Location Traces. - Takao Murakami; Koki Hamada; Yusuke Kawamoto 001; Takuma Hatano (CoRR, 2019)

Improved Security Evaluation Techniques for Imperfect Randomness from Arbitrary Distributions. - Takahiro Matsuda 002; Kenta Takahashi; Takao Murakami; Goichiro Hanaoka (IACR Cryptol. ePrint Arch., 2019)

Cancelable indexing based on low-rank approximation of correlation-invariant random filtering for fast and secure biometric identification. - Takao Murakami; Tetsushi Ohki; Yosuke Kaga; Masakazu Fujio; Kenta Takahashi (Pattern Recognit. Lett., 2019)

Exposing Private User Behaviors of Collaborative Filtering via Model Inversion Techniques. - Seira Hidano; Takao Murakami; Shuichi Katsumata; Shinsaku Kiyomoto; Goichiro Hanaoka (Proc. Priv. Enhancing Technol., 2020)

Locality Sensitive Hashing with Extended Differential Privacy. - Natasha Fernandes; Yusuke Kawamoto 001; Takao Murakami (ESORICS (2), 2021)

Synthesizing Privacy-Preserving Location Traces Including Co-locations. - Jun Narita; Yayoi Suganuma; Masakatsu Nishigaki; Takao Murakami; Tetsushi Ohki (DPM/CBT@ESORICS, 2021)

TransMIA: Membership Inference Attacks Using Transfer Shadow Training. - Seira Hidano; Takao Murakami; Yusuke Kawamoto 001 (IJCNN, 2021)

Locally Differentially Private Analysis of Graph Statistics. - Jacob Imola; Takao Murakami; Kamalika Chaudhuri (USENIX Security Symposium, 2021)

Privacy-Preserving Multiple Tensor Factorization for Synthesizing Large-Scale Location Traces with Cluster-Specific Features. - Takao Murakami; Koki Hamada; Yusuke Kawamoto 001; Takuma Hatano (Proc. Priv. Enhancing Technol., 2021)

Toward Evaluating Re-identification Risks in the Local Privacy Model. - Takao Murakami; Kenta Takahashi (Trans. Data Priv., 2021)

A Crypto-Assisted Approach for Publishing Graph Statistics with Node Local Differential Privacy. - Shang Liu 001; Yang Cao 011; Takao Murakami; Masatoshi Yoshikawa (IEEE Big Data, 2022)

Differentially Private Triangle and 4-Cycle Counting in the Shuffle Model. - Jacob Imola; Takao Murakami; Kamalika Chaudhuri (CCS, 2022)

Communication-Efficient Triangle Counting under Local Differential Privacy. - Jacob Imola; Takao Murakami; Kamalika Chaudhuri (USENIX Security Symposium, 2022)

Differentially Private Subgraph Counting in the Shuffle Model. - Jacob Imola; Takao Murakami; Kamalika Chaudhuri (CoRR, 2022)

Two-Dimensional Dynamic Fusion for Continuous Authentication. - Nuttapong Attrapadung; Goichiro Hanaoka; Haochen M. Kotoi-Xie; Takahiro Matsuda 002; Takumi Moriyama; Takao Murakami; Hidenori Nakamura; Jacob C. N. Schuldt; Masaaki Tokuyama; Jing Zhang (IJCB, 2023)

Designing a Location Trace Anonymization Contest. - Takao Murakami; Hiromi Arai; Koki Hamada; Takuma Hatano; Makoto Iguchi; Hiroaki Kikuchi; Atsushi Kuromasa; Hiroshi Nakagawa; Yuichi Nakamura 004; Kenshiro Nishiyama; Ryo Nojima; Hidenobu Oguri; et al. (Proc. Priv. Enhancing Technol., 2023)

Automatic Tuning of Privacy Budgets in Input-Discriminative Local Differential Privacy. - Takao Murakami; Yuichi Sei (IEEE Internet Things J., 2023)

Card-Based Cryptography Meets Differential Privacy. - Reo Eriguchi; Kazumasa Shinagawa; Takao Murakami (FUN, 2024)

CARGO: Crypto-Assisted Differentially Private Triangle Counting Without Trusted Servers. - Shang Liu 001; Yang Cao 011; Takao Murakami; Jinfei Liu; Masatoshi Yoshikawa (ICDE, 2024)

Federated Graph Analytics with Differential Privacy. - Shang Liu 001; Yang Cao 011; Takao Murakami; Weiran Liu; Seng Pei Liew; Tsubasa Takahashi 001; Jinfei Liu; Masatoshi Yoshikawa (CoRR, 2024)

Synthesizing differentially private location traces including co-locations. - Jun Narita; Takao Murakami; Hideitsu Hino; Masakatsu Nishigaki; Tetsushi Ohki (Int. J. Inf. Sec., 2024)

Degree-Preserving Randomized Response for Graph Neural Networks under Local Differential Privacy. - Seira Hidano; Takao Murakami (Trans. Data Priv., 2024)

Augmented Shuffle Protocols for Accurate and Robust Frequency Estimation Under Differential Privacy. - Takao Murakami; Yuichi Sei; Reo Eriguchi (SP, 2025)

Visualizing differentially private mechanisms with physical cards. - Reo Eriguchi; Kazumasa Shinagawa; Takao Murakami (Theor. Comput. Sci., 2025)

Data Poisoning Attacks to Locally Differentially Private Range Query Protocols. - Ting-Wei Liao; Chih-Hsun Lin; Yu-Lin Tsai; Takao Murakami; Chia-Mu Yu; Jun Sakuma; Chun-Ying Huang; Hiroaki Kikuchi (CoRR, 2025)