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RIKEN Center for Advanced Intelligence Project AI Security and Privacy Team

Team Leader: Jun Sakuma (D.Eng.)

Research Summary

Jun  Sakuma(D.Eng.)

Along with the development of artificial intelligence (AI) technologies, decision making by machine learning is being widely implemented in society. In order for artificial intelligence to play a prominent role in decision making of humans, it is necessary to guarantee that private or confidential information is not leaked through the process of decision making by AI. Also, we need guarantee that that AI's behavior cannot be arbitrarily manipulated by a malicious attacker and AI cannot harm humans against the original AI designers’ intent. Our team aims to develop fundamental technologies of security and privacy that are necessary for proper use of AI in society.

Research Subjects:

  • Artificial Intelligence Security
  • Privacy Preservation in Artificial Intelligence

Main Research Fields

  • Informatics

Related Research Fields

  • Engineering
  • Humanities
  • Intelligent informatics
  • Information security

Keywords

  • machine learning
  • security
  • privacy
  • fairness

Selected Publications

  • 1. Akifumi Wachi, Thien Q. Tran, Rei Sato, Takumi Tanabe, Youhei Akimoto:
    "Stepwise Alignment for Constrained Language Model Policy Optimization."
    NeurIPS 20246
  • 2. Yuwei Sun, Hideya Ochiai:
    "Bidirectional Contrastive Split Learning for Visual Question Answering."
    AAAI 2024: 21602-216096
  • 3. Jiayang Liu, Weiming Zhang, Kazuto Fukuchi, Youhei Akimoto, Jun Sakuma:
    "Unauthorized AI cannot recognize me: Reversible adversarial example."
    Pattern Recognit. 134: 109048 (2023)6
  • 4. Thien Q. Tran, Kazuto Fukuchi, Youhei Akimoto, Jun Sakuma:
    "Statistically Significant Pattern Mining With Ordinal Utility."
    IEEE Trans. Knowl. Data Eng. 35(9): 8770-8783 (2023)6
  • 5. Yoshimasa Akimoto, Kazuto Fukuchi, Youhei Akimoto, Jun Sakuma:
    "Privformer: Privacy-preserving Transformer with MPC."
    EuroS&P 2023: 392-4106
  • 6. Kaiwen Xu, Kazuto Fukuchi, Youhei Akimoto,Jun Sakuma:
    "Statistically Significant Concept-based Explanation of Image Classifiers via Model Knockoffs."
    IJCAI 2023: 519-5266
  • 7. Kazuto Fukuchi, Jun Sakuma:
    "Demographic Parity Constrained Minimax Optimal Regression under Linear Model."
    NeurIPS 20236
  • 8. Thien Q. Tran, Kazuto Fukuchi, Youhei Akimoto, Jun Sakuma:
    "Unsupervised Causal Binary Concepts Discovery with VAE for Black-Box Model Explanation."
    AAAI 2022: 9614-96226
  • 9. Takumi Tanabe, Rei Sato, Kazuto Fukuchi, Jun Sakuma, Youhei Akimoto:
    "Max-Min Off-Policy Actor-Critic Method Focusing on Worst-Case Robustness to Model Misspecification."
    NeurIPS 20226
  • 10. Rei Sato, Jun Sakuma, Youhei Akimoto:
    "AdvantageNAS: Efficient Neural Architecture Search with Credit Assignment."
    AAAI 2021: 9489-9496

Related Links

Lab Members

Principal investigator

Jun Sakuma
Team Leader

Core members

Jun Seita
Research Scientist
Lu Sun
Research Scientist
Zhe Yu
Postdoctoral Researcher
Kazuto Fukuchi
Visiting Scientist
Hideitsu Hino
Visiting Scientist
Tatsuya Mori
Visiting Scientist
Yohei Akimoto
Visiting Scientist
Yuki Koike
Visiting Scientist
Takao Murakami
Visiting Scientist
Yuwei Sun
Visiting Scientist
Daiki Nishiyama
Research Part-time Worker I
Ziling He
Research Part-time Worker I
Junhao Wei
Research Part-time Worker I
Mikoto Kudou
Research Part-time Worker I
Takaaki Toda
Research Part-time Worker II
Shiwen An
Research Part-time Worker II
Md Ragib Amin Nihal
Research Part-time Worker II
Yu-Lin Tsai
Student Trainee
Takaki Kato
Student Trainee

Contact Information

SB1006
1-1-1, Tennohdai, Tsukuba, Ibaraki
Email: jun.sakuma@riken.jp

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