22 citations · 52 across the 14 of their papers we have counts for
4 papers · 1 filter
Technical Progress Analysis Using a Dynamic Topic Model for Technical Terms to Revise Patent Classification Codes
Mana Iwata, Yoshiro Matsuda, Yoshimasa Utsumi +2
Japanese patents are assigned a patent classification code, FI (File Index), that is unique to Japan. FI is a subdivision of the IPC, an international patent classification code, t…
Larger Sparse Quadratic Assignment Problem Optimization Using Quantum Annealing and a Bit-Flip Heuristic Algorithm
Michiya Kuramata, Ryota Katsuki, Kazuhide Nakata
Quantum annealing and D-Wave quantum annealer attracted considerable attention for their ability to solve combinatorial optimization problems. In order to solve other type of optim…
A Block Coordinate Descent Method for Sensor Network Localization
Mitsuhiro Nishijima, Kazuhide Nakata
The problem of sensor network localization (SNL) can be formulated as a semidefinite programming problem with a rank constraint. We propose a new method for solving such SNL proble…
Bilevel Cutting-plane Algorithm for Solving Cardinality-constrained Mean-CVaR Portfolio Optimization Problems
Ken Kobayashi, Yuichi Takano, Kazuhide Nakata
This paper studies mean-risk portfolio optimization models using the conditional value-at-risk (CVaR) as a risk measure. We also employ a cardinality constraint for limiting the nu…