検索結果 164件中 1-20 を表示

  • パレートフロント探索に基づく熱流体デバイスのトポロジー最適化

    佐藤 勇気 , 矢地 謙太郎 , 泉井 一浩 , 山田 崇恭 , 西脇 眞二

    計算工学講演会論文集 Proceedings of the Conference on Computational Engineering and Science 22, 5p, 2017-05

  • Adaptive Baseline Enhances EM-Based Policy Search: Validation in a View-Based Positioning Task of a Smartphone Balancer

    Wang Jiexin , Uchibe Eiji , Doya Kenji

    … Previous algorithms like Policy learning by Weighting Exploration with the Returns, Fitness Expectation Maximization, and EM-based Policy Hyperparameter Exploration implemented the mechanisms to discard useless low-return episodes either implicitly or using a fixed baseline determined by the experimenter. … In this paper, we propose an adaptive baseline method to discard worse samples from the reward history and examine different baselines, including the mean, and multiples of SDs from the mean. …

    Frontiers in Neurorobotics 11, 2017-01-23

    機関リポジトリ DOI

  • Dynamic Path Provisioning and Disruption-Free Reoptimization Algorithms for Bandwidth on-Demand Services Considering Fairness

    NAKAGAWA Masahiro , HASEGAWA Hiroshi , SATO Ken-ichi

    … <p>Adaptive and flexible network control technology is considered essential for efficient network resource utilization. … Our previous study introduced a simple weighting function for achieving fairness in terms of path length and proposed two dynamic Make Before Break Routing algorithms for reducing blocking probability. …

    IEICE Transactions on Communications E100.B(4), 536-547, 2017

    J-STAGE

  • A Weighted Overlapped Block-Based Compressive Sensing in SAR Imaging

    YOU Hanxu , LI Lianqiang , ZHU Jie

    … It has two main characteristics: 1) the strategy of sensing small and recovering big and 2) adaptive weighting technique among overlapped blocks. …

    IEICE Transactions on Information and Systems E100.D(3), 590-593, 2017

    J-STAGE

  • Adaptive Weighting Just-in-Time-Learning Quality Prediction Model for an Industrial Blast Furnace

    Chen Kun , Liu Yi

    … A novel just-in-time-learning (JITL) prediction approach using adaptive feature-weighting for similar samples is developed. … Then, a suitable similarity criterion with feature weighting strategy is formulated, which is not considered in conventional JITL methods. …

    ISIJ International 57(1), 107-113, 2017

    J-STAGE

  • Dynamic Path Provisioning and Disruption-Free Reoptimization Algorithms for Bandwidth on-Demand Services Considering Fairness

    Nakagawa Masahiro , Hasegawa Hiroshi , Sato Ken-ichi

    … <p>Adaptive and flexible network control technology is considered essential for efficient network resource utilization. … Our previous study introduced a simple weighting function for achieving fairness in terms of path length and proposed two dynamic Make Before Break Routing algorithms for reducing blocking probability. …

    IEICE Transactions on Communications, 2016

    J-STAGE

  • Adaptive Sidelobe Cancellation Technique for Atmospheric Radars Containing Arrays with Nonuniform Gain

    HASHIMOTO Taishi , NISHIMURA Koji , SATO Toru

    … <p>The design and performance evaluation is presented of a partially adaptive array that suppresses clutter from low elevation angles in atmospheric radar observations. … We performed numerical simulations to show that using the proper gain weighting, the sub-array configuration has better clutter suppression capability per unit SNR loss than the uniformly divided arrays of the same size. …

    IEICE Transactions on Communications E99.B(12), 2583-2591, 2016

    J-STAGE

  • Adaptive Sidelobe Cancellation Technique for Atmospheric Radars Containing Arrays with Nonuniform Gain

    HASHIMOTO Taishi , NISHIMURA Koji , SATO Toru

    … The design and performance evaluation is presented of a partially adaptive array that suppresses clutter from low elevation angles in atmospheric radar observations. … We performed numerical simulations to show that using the proper gain weighting, the sub-array configuration has better clutter suppression capability per unit SNR loss than the uniformly divided arrays of the same size. …

    IEICE Transactions on Communications advpub(0), 2016

    J-STAGE

  • Adaptive Weighting of Structural Dependency and Textual Similarity in Software Architecture Recovery

    UM Jae-Chul , LEE Ki-Seong , LEE Chan-Gun

    Software architecture recovery techniques are often adopted to derive a module view of software from its source code in case software architecture documents are unavailable or outdated. The module vie …

    IEICE Transactions on Information and Systems E99.D(3), 756-759, 2016

    J-STAGE

  • Development of Wide-Area Measurement based Adaptive Controller Design for Power System Damping

    Tran Ngoc Huynh , Yokoyama Akihiko

    … The design strategy, which is based on a concept of adaptive controller, has fours step that are dominant mode identifying, controller output location, feedback signal weighting and parameter tuning. … The proposed feedback signal weighting is to add weighting numbers to feedback signals using only one power system stabilizer. …

    電気学会論文誌. B 136(2), 118-128, 2016

    J-STAGE

  • Part-Segment Features with Optimized Shape Priors for Articulated Pose Estimation

    UKITA Norimichi

    … The PS feature is fused complementarily with gradient features using discriminative training and adaptive weighting for robust and accurate evaluation of part similarity. …

    IEICE Transactions on Information and Systems E99.D(1), 248-256, 2016

    J-STAGE

  • A mesh-free method with arbitrary-order accuracy for acoustic wave propagation

    Takekawa Junichi , Mikada Hitoshi , Imamura Naoto

    … The unique point of the method is that the approach calculates the approximation of derivatives using the differences of spatial variables without parameters as e.g. the weighting functions, basis functions. … Our result indicates that the method would provide accurate and efficient solutions for acoustic wave propagation using adaptive distribution of the calculation points. …

    Computers & Geosciences 78, 15-25, 2015-05

    機関リポジトリ DOI

  • 光電式カナル型脈波センサを対象とした2段階体動除去フィルタの開発 (知覚情報研究会・知覚情報技術の最前線)

    鈴木 聡 , 満倉 靖恵

    電気学会研究会資料. PI = The papers of Technical Meeting on "Perception Information", IEE Japan, 2015(43-47・49-58), 65-70, 2015-04-24

  • Image Interpolation based on Weighting Function of Gaussian (音声)

    山口 拓郎 , 中島 康博 , 池原 雅章

    本書では,自己回帰(PAR)モデルに基づいた新しい補間法を提案する.PARモデルに基づいた手法であるSAIやその改良法は非常に高い水準の画像補間法である.これらは良質な復元画像を作れるものの,重みパラメータを決定する際に逆行列間題を解かなくてはいけないため,計算コストが高くなる傾向がある.そこで私達はガウス関数を用いることで,逆行列演算を行うことなくパラメータ推定を行えるようにした.さらに,SAI …

    電子情報通信学会技術研究報告 = IEICE technical report : 信学技報 114(475), 181-185, 2015-03-02

  • Image Interpolation based on Weighting Function of Gaussian (応用音響)

    山口 拓郎 , 中島 康博 , 池原 雅章

    本書では,自己回帰(PAR)モデルに基づいた新しい補間法を提案する.PARモデルに基づいた手法であるSAIやその改良法は非常に高い水準の画像補間法である.これらは良質な復元画像を作れるものの,重みパラメータを決定する際に逆行列間題を解かなくてはいけないため,計算コストが高くなる傾向がある.そこで私達はガウス関数を用いることで,逆行列演算を行うことなくパラメータ推定を行えるようにした.さらに,SAI …

    電子情報通信学会技術研究報告 = IEICE technical report : 信学技報 114(473), 181-185, 2015-03-02

  • Image Interpolation based on Weighting Function of Gaussian (信号処理)

    山口 拓郎 , 中島 康博 , 池原 雅章

    本書では,自己回帰(PAR)モデルに基づいた新しい補間法を提案する.PARモデルに基づいた手法であるSAIやその改良法は非常に高い水準の画像補間法である.これらは良質な復元画像を作れるものの,重みパラメータを決定する際に逆行列間題を解かなくてはいけないため,計算コストが高くなる傾向がある.そこで私達はガウス関数を用いることで,逆行列演算を行うことなくパラメータ推定を行えるようにした.さらに,SAI …

    電子情報通信学会技術研究報告 = IEICE technical report : 信学技報 114(474), 181-185, 2015-03-02

  • 1214 距離制約を考慮した局所探索に基づく多目的最適化法 : 探索点の数の動的な調整法に関する検討(最適化手法・理論)

    佐藤 勇気 , 泉井 一浩 , 山田 崇恭 , 西脇 眞二

    … AGMO typically uses the weighing-sum technique, with weighting coefficients adaptively given during the optimization process. … This paper proposes techniques to enhance the diversity of search points during the optimization process in an AGMO method, by introducing distance constraints and adaptive adjustment of the number of search points, so that well-distributed Pareto solutions are obtained. …

    最適化シンポジウム : OPTIS 2014(11), "1214-1"-"1214-5", 2014-12-11

  • 遮蔽環境下における視覚野の適応的な運動検出メカニズム (ニューロコンピューティング)

    神田 雄介 , 渡部 修

    視覚野において,運動情報は主にV1からMTへの背側経路で処理されている.このような運動知覚の処理をモデル化したものとして,Simoncelliら(1998)の階層モデルがある.このモデルでは,一つの物体のみが存在するような理想的な条件を前提としており,一般的な自然画像のように遮蔽物が存在する場合については考慮されていない.特に遮蔽環境下における運動知覚の問題としては,実効的なサンプリングレートの低 …

    電子情報通信学会技術研究報告 = IEICE technical report : 信学技報 113(382), 19-24, 2014-01-20

  • 1214 距離制約を考慮した局所探索に基づく多目的最適化法 : 探索点の数の動的な調整法に関する検討(最適化手法・理論)

    佐藤 勇気 , 泉井 一浩 , 山田 崇恭 , 西脇 眞二

    … AGMO typically uses the weighing-sum technique, with weighting coefficients adaptively given during the optimization process. … This paper proposes techniques to enhance the diversity of search points during the optimization process in an AGMO method, by introducing distance constraints and adaptive adjustment of the number of search points, so that well-distributed Pareto solutions are obtained. …

    最適化シンポジウム:OPTIS 2014.11(0), _1214-1_-_1214-5_, 2014

    J-STAGE

  • 適応スキュー角ピラミッド型CMGに対するゲインスケジュールジンバル駆動則

    笠井 慎也 , 小島 広久

    … Gain-scheduled steering control for the adaptive skew pyramid-type control moment gyros (ASCMGs) is proposed. … Contrary to past studies that treated the fixed skew angle for pyramid type CMG systems, in the adaptive skew pyramid type CMG system (ASCMGs), the skew angle is treated as a variable to obtain larger torques, compared to the traditional fixed skew angle CMGs. …

    日本航空宇宙学会論文集 62(2), 55-62, 2014

    J-STAGE

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