47 citations · 62 across the 6 of their papers we have counts for
6 papers
Distributed Stabilization by Probability Control for Deterministic-Stochastic Large Scale Systems : Dissipativity Approach
Koji Tsumura, Binh Minh Nguyen, Hisaya Wakayama +1
By using dissipativity approach, we establish the stability condition for the feedback connection of a deterministic dynamical system and a stochastic memoryless map . After…
Deterministic Quantum Annealing Expectation-Maximization Algorithm
Hideyuki Miyahara, Koji Tsumura, Yuki Sughiyama
Maximum likelihood estimation (MLE) is one of the most important methods in machine learning, and the expectation-maximization (EM) algorithm is often used to obtain maximum likeli…
Relaxation of the EM Algorithm via Quantum Annealing for Gaussian Mixture Models
Hideyuki Miyahara, Koji Tsumura, Yuki Sughiyama
We propose a modified expectation-maximization algorithm by introducing the concept of quantum annealing, which we call the deterministic quantum annealing expectation-maximization…
Relaxation of the EM Algorithm via Quantum Annealing
Hideyuki Miyahara, Koji Tsumura
The EM algorithm is a novel numerical method to obtain maximum likelihood estimates and is often used for practical calculations. However, many of maximum likelihood estimation pro…
Suboptimal quantum-error-correcting procedure based on semidefinite programming
Naoki Yamamoto, Shinji Hara, Koji Tsumura
In this paper, we consider a simplified error-correcting problem: for a fixed encoding process, to find a cascade connected quantum channel such that the worst fidelity between the…
Synthesis of stabilizing switched controllers for N-dimensional quantum angular momentum systems
Kyosuke Matsumoto, Koji Tsumura, Shinji Hara
This paper provides a class of feedback controllers that guarantee global stability of quantum angular momentum systems. The systems are in general finite dimensions and the stabil…