23 citations · 68 across the 5 of their papers we have counts for
5 papers
Edge-of-chaos enhanced quantum-inspired algorithm for combinatorial optimization
Hayato Goto, Ryo Hidaka, Kosuke Tatsumura
Nonlinear dynamical systems with continuous variables can be used for solving combinatorial optimization problems with discrete variables. Numerical simulations of them are also us…
Efficient and Scalable Architecture for Multiple-chip Implementation of Simulated Bifurcation Machines
Tomoya Kashimata, Masaya Yamasaki, Ryo Hidaka +1
Ising machines are specialized computers for finding the lowest energy states of Ising spin models, onto which many practical combinatorial optimization problems can be mapped. Sim…
Correlation-diversified portfolio construction by finding maximum independent set in large-scale market graph
Ryo Hidaka, Yohei Hamakawa, Jun Nakayama +1
Correlation-diversified portfolios can be constructed by finding the maximum independent sets (MISs) in market graphs with edges corresponding to correlations between two stocks. T…
Real-time Trading System based on Selections of Potentially Profitable, Uncorrelated, and Balanced Stocks by NP-hard Combinatorial Optimization
Kosuke Tatsumura, Ryo Hidaka, Jun Nakayama +2
Financial portfolio construction problems are often formulated as quadratic and discrete (combinatorial) optimization that belong to the nondeterministic polynomial time (NP)-hard…
Pairs-trading System using Quantum-inspired Combinatorial Optimization Accelerator for Optimal Path Search in Market Graphs
Kosuke Tatsumura, Ryo Hidaka, Jun Nakayama +2
Pairs-trading is a trading strategy that involves matching a long position with a short position in two stocks aiming at market-neutral profits. While a typical pairs-trading syste…