検索結果 409件中 1-20 を表示

  • An evolutionary constrained multi-objective optimization algorithm with parallel evaluation strategy

    SHIMOYAMA Koji , KATO Taiga

    … <p>This paper proposes an improved evolutionary algorithm with parallel evaluation strategy (EAPES) for solving constrained multi-objective optimization problems (CMOPs) efficiently. … The EAPES proposed in this paper ranks infeasible solutions based on the scalarizing function named constrained penalty-based boundary intersection (C-PBI), which is determined by objective function values and a total constraint violation value. …

    Journal of Advanced Mechanical Design, Systems, and Manufacturing 11(5), JAMDSM0051-JAMDSM0051, 2017

    DOI

  • 座屈解析に進化計算を適用した薄板軽量形鋼の断面寸法最適設計

    坂本 二郎 , 小林 佳介 , 北山 哲士 , 清水 信孝

    … <p>An optimum design method for determining the cross-sectional sizes of thin steel plate columns used for steel framed house was developed to maximize their buckling strength under a constraint of constant volume using evolutionary computing and cold forming. … Differential evolution (DE) was used for the optimization algorithm because it is a fast and reliable method for non-linear, non-convex, and multimodal optimization problems. …

    日本機械学会論文集, 2017

    DOI

  • 電気めっき加工におけるめっき膜厚分布均一化のための遮蔽物のトポロジー最適化

    石塚 尚子 , 野口 悠暉 , 山田 崇恭 , 泉井 一浩 , 西脇 眞二

    … Such analytical tools can predict thickness distributions, search for optimal process configurations, and avoid production problems, to some extent, but the selection of the most effective analytical conditions still depends on skilled analysts. … This study presents a topology optimization method to achieve uniform deposition thickness, applied to the design of the shields placed in an electroplating bath. …

    日本機械学会論文集 83(853), 17-00185-17-00185, 2017

    DOI

  • アーク反転を伴う有向二部グラフ上のアイテム収集問題

    田中 聖也 , 軽野 義行

    … Given a directed bipartite structure with a set of items and a set of players, the problem asks to find an arc reversing strategy of the players which collects items in their cooperation with a budget constraint so that the total profit of the collected items is maximized. …

    生産システム部門講演会講演論文集 2017(0), 402, 2017

    DOI

  • 電気めっき加工におけるめっき膜厚分布均一化のための遮蔽物のトポロジー最適化

    石塚 尚子 , 野口 悠暉 , 山田 崇恭 , 泉井 一浩 , 西脇 眞二

    … Such analytical tools can predict thickness distributions, search for optimal process configurations, and avoid production problems, to some extent, but the selection of the most effective analytical conditions still depends on skilled analysts. … This study presents a topology optimization method to achieve uniform deposition thickness, applied to the design of the shields placed in an electroplating bath. …

    日本機械学会論文集, 2017

    DOI

  • 応答曲面法を用いた複数車種の同時最適化ベンチマーク問題の提案

    小平 剛央 , 釼持 寛正 , 大山 聖 , 立川 智章

    … We propose two optimization benchmark problems with actual engineering design features of car-body structural development using response surface method. … The first is a single-objective optimization problem of weight minimization. … The second is the multi-objective optimization problem of weight minimization and number of common thickness parts maximization. …

    進化計算学会論文誌 8(1), 11-21, 2017

    DOI

  • QUADRATIC OPTIMIZATION UNDER SEMI-FIBONACCI CONSTRAINT (II)

    Kimura Yutaka , Iwamoto Seiichi

    … <p>It is shown that the Fibonacci sequence is optimal for two quadratic programming problems (maximization and minimization) under semi-Fibonacci constraints. … The two conditional (primal) problems have their unconditional (dual) problems. … Both pairs of primal and dual problems are mutually derived through three methods — dynamic, plus-minus and inequality —.</p> …

    日本オペレーションズ・リサーチ学会論文誌 60(2), 78-90, 2017

    DOI

  • Joint Source and Relay Beamformer Design for General MIMO Relaying Broadcast Channel with Imperfect Channel State Information

    LI Yun , WAN Haibin , CHEN Wen , ASAMI Tohru

    … In the present paper, we first propose a general communication scheme with non-regenerative relay that can overcome the half-duplex relay constraint of the general MIMO-RBC. … However, solving the problems associated with throughput and fairness criteria for the robust source PM and relay BM designs is computationally intractable because these criteria are non-linear and non-convex. …

    IEICE Transactions on Communications E100.B(5), 852-864, 2017

    DOI

  • Free-form optimization of a frame structure for strength maximization

    WU Zhiqiang , SHIMODA Masatoshi , HISATOMI Kei , SHI Jin-Xing

    … <p>In this paper, we present a parameter-free free-form optimization method for the strength design problem of a frame structure. … The maximum von Mises stress is minimized under a given volume constraint. …

    Mechanical Engineering Journal, 2017

    DOI

  • Reduction of Max-Plus Algebraic Equations to Constraint Satisfaction Problems for Mixed Integer Programming

    GOTO Hiroyuki

    … The essential part of these equations is reduced to constraint satisfaction problems compatible with mixed integer programming. … This method is flexible, compared with optimization methods, and suitable for scheduling of certain discrete event systems.</p> …

    IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences E100.A(2), 427-430, 2017

    DOI

  • Cereal Crop Farm Planning for Profit Maximization in Afghanistan

    Ahmadzai Najeebullah , Nanseki Teruaki , Chomei Yosuke

    … The sector which is dominated by small scale farmer across the country is facing numerous problems such as inefficient use of resources, poor production technology, low labor productivity and high production costs. … This study was carried out to maximize farm income by optimization resource allocation and developing an optimal farm plan for a cooperative farm in Ahmad Abad district. …

    九州大学大学院農学研究院紀要 61(2), 401-406, 2016-09-01

    機関リポジトリ

  • 空港におけるゲート再割当の最適化とロバストなゲート割当の生成

    平井 宣幸

    … Flights are often delayed due to weather conditions and technical problems, and flight delays may necessitate reassignment of forthcoming flights to gates in real time. … In this thesis, based on an existing model, we propose a gate reassignment model with a constraint on flight connections and formulate it as 0-1 integer programming problem. …

    法政大学大学院紀要 デザイン工学研究科編 5, 2016-03-24

    機関リポジトリ

  • 計画型数理管理のための大規模ソフトウェア製作によるシミュレーション

    錦織 昭峰

    … Development of an approximation method using search trees and its large-scale software for solving large-scale constraint satisfaction and assignment problems with priority order 2). … Study on the necessary and sufficient condition on subtour elimination constraints in the formulation of symmetric traveling salesman problem 6).Study on developing the software using the incremental method by constant time for solving (modified) job shop scheduling problems 7). …

    県立広島大学経営情報学部論集 (8), 89-101, 2016-02

    機関リポジトリ

  • 多周波ステップLFM方式におけるCMSE周波数ステップ

    渡辺 優人 , 稲葉 敬之

    … The proposed Constrained Minimum Square Error (CMSE) method, which employs some constraints on the output level of SWW, provides the parameters associated with the intervals of frequencies to mitigate problems associated with the side-lobe level in the vicinity of main-lobe. …

    電気学会論文誌. C 136(10), 1454-1459, 2016

    DOI

  • 逆最適制御則設計におけるHJB方程式とKKT条件の関連について

    佐藤 康之 , 中村 文一 , 大塚 敏之

    <p>本発表では,制御Lyapunov関数に基づいた逆最適制御則設計において,制御則がみたすべきHamilton-Jacobi-Bellman(HJB)方程式が,ある凸最適化問題に対応したKarush-Kuhn-Tucker条件とみなせることを明らかにする.</p>

    自動制御連合講演会講演論文集 59(0), 1042-1043, 2016

    DOI

  • 弾性座屈荷重最大化を目的とする骨組構造体のフリーフォルム最適化

    下田 昌利 , 善本 諒

    … <p>In this study, we propose a shape optimization method of a frame structure for maximizing the elastic buckling load. … The 1st buckling load factor is maximized under a volume constraint. … The problem is formulated as a distribute parameter shape optimization problem, and the shape gradient function for this problem is theoretically derived using the Lagrange multiplier method, the adjoint variable method and the formulae of the material derivative. …

    日本機械学会論文集 82(841), 16-00229-16-00229, 2016

    DOI

  • Joint Source and Relay Beamformer Design for General MIMO Relaying Broadcast Channel with Imperfect Channel State Information

    LI Yun , WAN Haibin , CHEN Wen , ASAMI Tohru

    … In the present paper, we first propose a general communication scheme with non-regenerative relay that can overcome the half-duplex relay constraint of the general MIMO-RBC. … However, solving the problems associated with throughput and fairness criteria for the robust source PM and relay BM designs is computationally intractable because these criteria are non-linear and non-convex. …

    IEICE Transactions on Communications, 2016

    DOI

  • Multistage stochastic programming model for optimizing allocation of running time supplements

    SHIINA Takayuki , MORITO Susumu , IMAIZUMI Jun

    … In this paper, we suggest an improvement to the previous model and present a new stochastic programming model in which there is a constraint on the running time supplement allocated to each trip to minimize the expected delay. … Then the calculation times using the L-shaped algorithm and the former method solving a deterministic equivalent of large-scale problems are compared. … It is shown that the large-scale problems can be solved effectively by using the L-shaped method. …

    Journal of Advanced Mechanical Design, Systems, and Manufacturing 10(3), JAMDSM0043-JAMDSM0043, 2016

    J-STAGE DOI

  • カテゴリ毎に異なる計量行列を用いた計量距離学習手法に関する一考察

    三川 健太 , 後藤 正幸

    入力データの統計的特徴を考慮した距離計量を学習するための手法としてDistance Metric Learnig(以下,計量距離学習)が提案されている.計量距離学習では,適切な制約条件のもとで,繰り返し法による最適化問題を解くことにより最適な計量行列を学習する.しかしながら,一般的な計量距離学習手法では繰り返し毎に固有値分解を行うアルゴリズムを採用していることが多く,学習データの次元数が増加した場 …

    日本経営工学会論文誌 66(4), 335-347, 2016

    J-STAGE DOI

  • PAPR Constrained Power Allocation for Multi-Carrier Transmission in Multiuser SIMO Communications

    Trevor Valtteri , Tolli Anti , Matsumoto Tad

    … The constraints for the optimization problems are derived as a function of transmit power allocation and two successive convex approximations (SCAs) are derived for each of the constraints based on a change of variables (COV) and geometric programming (GP). … In addition, the optimization problem is constrained by a userspecific quality of service (QoS) constraint. …

    IEEE Transactions on Wireless Communications, 2015-11-30

    機関リポジトリ DOI

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