Akimoto, Youhei

1. Verbosity Bias in Preference Labeling by Large Language Models
   2023/10/16 by K. Saito, Saito, Keita, Akifumi Wachi +5 · 13 citations
   Computer Science · #Artificial Intelligence (cs.AI) #Computation and Language (cs.CL) #FOS: Computer and information sciences #Natural Language Processing Techniques #Speech and dialogue systems #Topic Modeling
2. Stepwise Alignment for Constrained Language Model Policy Optimization
   2024/04/17 by Wachi, Akifumi, Tran, Thien Q., Sato, Rei +2 · 5 citations
   #Artificial Intelligence (cs.AI) #Computation and Language (cs.CL) #FOS: Computer and information sciences #Machine Learning (cs.LG)
3. Unauthorized AI cannot Recognize Me: Reversible Adversarial Example
   2018/11/01 by Liu, Jiayang, Zhang, Weiming, Fukuchi, Kazuto +2 · 2 citations
   #Computer Vision and Pattern Recognition (cs.CV) #FOS: Computer and information sciences #Machine Learning (cs.LG)
4. Max-Min Off-Policy Actor-Critic Method Focusing on Worst-Case Robustness to Model Misspecification
   2022/11/07 by Takumi Tanabe, Tanabe, Takumi, Rei Sato +7 · 2 citations
   Computer Science · Engineering · #Artificial Intelligence (cs.AI) #FOS: Computer and information sciences #Fuel Cells and Related Materials #I.2.6 #Machine Learning (cs.LG) #Reinforcement Learning in Robotics #Software Engineering Research
5. Theoretical foundation for CMA-ES from information geometric perspective
   2012/06/04 by Youhei Akimoto, Akimoto, Youhei, Yuichi Nagata +5 · 1 citation
   Computer Science · Mathematics · #FOS: Computer and information sciences #Face and Expression Recognition #Morphological variations and asymmetry #Neural Networks and Applications #Neural and Evolutionary Computing (cs.NE)
6. Parameterless Stochastic Natural Gradient Method for Discrete Optimization and its Application to Hyper-Parameter Optimization for Neural Network
   2018/09/18 by Nishida, Kouhei, Aguirre, Hernan, Saito, Shota +2 · 1 citation
   #FOS: Computer and information sciences #FOS: Mathematics #Machine Learning (cs.LG) #Machine Learning (stat.ML) #Optimization and Control (math.OC)
7. Diagonal Acceleration for Covariance Matrix Adaptation Evolution Strategies
   2019/05/14 by Youhei Akimoto, Nikolaus Hansen, Akimoto, Youhei +1 · 1 citation
   Computer Science · #Blind Source Separation Techniques #Neural Networks and Applications #Metaheuristic Optimization Algorithms Research
8. Global Linear Convergence of Evolution Strategies on More Than Smooth Strongly Convex Functions
   2020/09/18 by Youhei Akimoto, Akimoto, Youhei, Auger, Anne +4 · 1 citation
   Computer Science · Decision Sciences · #Stochastic Gradient Optimization Techniques #Advanced Bandit Algorithms Research #Risk and Portfolio Optimization
9. Warm Starting CMA-ES for Hyperparameter Optimization
   2020/12/13 by Nomura, Masahiro, Watanabe, Shuhei, Akimoto, Youhei +2 · 1 citation
   #FOS: Computer and information sciences #Machine Learning (cs.LG)
10. Convergence Rate of the (1+1)-Evolution Strategy with Success-Based Step-Size Adaptation on Convex Quadratic Functions
    2021/03/02 by Daiki Morinaga, Kazuto Fukuchi, Morinaga, Daiki +5 · 1 citation
    Computer Science · #Stochastic Gradient Optimization Techniques #Metaheuristic Optimization Algorithms Research #Distributed Control Multi-Agent Systems
11. Dynamic Optimization of Neural Network Structures Using Probabilistic Modeling
    2018/01/23 by Shinichi Shirakawa, Yasushi Iwata, Shirakawa, Shinichi +3 · 1 citation
    Computer Science · #Advanced Neural Network Applications #FOS: Computer and information sciences #Machine Learning (cs.LG) #Machine Learning (stat.ML) #Machine Learning and Data Classification #Neural Networks and Applications #Neural and Evolutionary Computing (cs.NE)
12. Drift Theory in Continuous Search Spaces: Expected Hitting Time of the (1+1)-ES with 1/5 Success Rule
    2018/02/09 by Youhei Akimoto, Anne Auger, Akimoto, Youhei +3 · 1 citation
    Computer Science · Decision Sciences · #Optimization and Search Problems #Auction Theory and Applications #Metaheuristic Optimization Algorithms Research
13. Vulnerability Mitigation for Safety-Aligned Language Models via Debiasing
    2025/02/04 by Thien Q. Tran, Tran, Thien Q., Akifumi Wachi +7 · 1 citation
    Computer Science · Engineering · #Artificial Intelligence (cs.AI) #Computation and Language (cs.CL) #FOS: Computer and information sciences #Machine Learning (cs.LG) #Safety Systems Engineering in Autonomy #Software Reliability and Analysis Research #Software Testing and Debugging Techniques