Search Results 1-20 of 2139

  • Implementation of a Method for Simultaneous Estimation of Multiple Parameters and its Application to Machine Learning Software  [in Japanese]

    多部田 敏樹 , 藤井 昭宏 , 田中 輝雄 , 滝沢 寛之

    計算工学講演会論文集 Proceedings of the Conference on Computational Engineering and Science 25, 4p, 2020-06

  • The Effect of Silence Feature in Dimensional Speech Emotion Recognition

    Atmaja Bagus Tris , Akagi Masato

    … As the silence feature is extracted per utterance, we grouped the silence feature with high statistical functions from a set of acoustic features. … The proper choice of a factor in the calculation of silence feature improves the performance of dimensional speech emotion recognition performance in terms of a concordance correlation coefficient. … On the other side, improper choice of that factor leads to a decrease in performance by using the same architecture. …

    Proc. 10th International Conference on Speech Prosody 2020, 26-30, 2020-05-25

    IR 

  • Involved in Editing Information Processing After 2050:6. Perspective of Future High Performance Computing  [in Japanese]

    岩下 武史

    今後の30年間の情報処理技術に関する予測は,過去30年の外挿ではありえず,難しいものとなる.近年,ムーアの法則の終焉が取り上げられる中で,単位消費電力あたりの計算機性能の向上が困難となってきている様子が伺える.筆者は,短期的には「ショッピングモール型計算機」と自身が呼ぶ,特定の計算・処理に特化した計算デバイスと汎用型のCPUを併用した計算システムに関する諸技術が発展すると予測する.そして,その後, …

    情報処理 61(5), 451-452, 2020-04-15

    IPSJ 

  • 4D Street View : A New Visualization Method for Computer Simulations  [in Japanese]

    陰山 聡 , 坂本 尚久 , 大野 暢亮

    プラズマ・核融合学会誌 = Journal of plasma and fusion research 96(4), 199-206, 2020-04

  • Deep Learning in Cross-disciplinary  [in Japanese]

    孟 林 , 孟 澤林 , 王 志辰 , 冨山 宏之

    電気学会研究会資料. CT 2020(44-47・49-55), 5-10, 2020-03-27

  • Accelerated FDPS: Algorithms to use accelerators with FDPS

    Iwasawa Masaki , Namekata Daisuke , Nitadori Keigo , Nomura Kentaro , Wang Long , Tsubouchi Miyuki , Makino Junichiro

    … We describe algorithms implemented in FDPS (Framework for Developing Particle Simulators) to make efficient use of accelerator hardware such as GPGPUs (general-purpose computing on graphics processing units). … We have developed FDPS to make it possible for researchers to develop their own high-performance parallel particle-based simulation programs without spending large amounts of time on parallelization and performance tuning. …

    Publications of the Astronomical Society of Japan 72(1), 13, 2020-02

    IR 

  • Towards Fault Tolerance Evaluation Techniques for Parallel Execution Frameworks That Consider Worker Significance  [in Japanese]

    西牟禮 亮 , 八杉 昌宏 , 平石 拓 , 馬谷 誠二

    High productivity, scalability, load balancing, and fault tolerance are all important issues of massively parallel computing. … In order to achieve high performance with parallel execution frameworks based on the HOPE model, it might be worthwhile to use several kinds of workers, e.g., a worker that serves as a base for information exchange among other normal workers. …

    情報処理学会論文誌プログラミング(PRO) 13(1), 16-16, 2020-01-29

    IPSJ 

  • Classification of Smartphone Application Reviews Using Small Corpus Based on Bidirectional LSTM Transformer

    Matsumoto Kazuyuki , Tsuchiya Seiji , Kojima Takumi , Kondo Hiroya , Yoshida Minoru , Kita Kenji

    … We propose a high performance binary classification method (positive/negative) of review texts, which uses the bidirectional long short-term memory (biLSTM) self-attentional Transformer and is based on the distributed representations created by unsupervised learning of a manually labelled small review corpus, dictionary, and an unlabeled large review corpus. …

    International Journal of Machine Learning and Computing 10(1), 148-157, 2020-01

    IR 

  • A Sequential Detection Method for Intrusion Detection System Based on Artificial Neural Networks

    Hao Zhao , Feng Yaokai , Koide Hiroshi , Sakurai Kouichi

    … We design each subclassifier with a low false positive rate, which may lead to high false negative rate. … We also investigated the effect of the number of subclassifiers on detection performance and found that the detection system performed best when using four subclassifiers. …

    International Journal of Networking and Computing 10(2), 213-226, 2020

    J-STAGE 

  • A Cache Replacement Policy with Considering Fluctuation Patterns of Total Priority Value

    Tada Jubee , Higashi Ryosuke

    … In recent computer systems, a high-performance memory system is required for improving the computing performance. … To improve the performance of the memory system, the capacity and the associativity of cache memories tend to be enlarged in all the memory hierarchy. …

    International Journal of Networking and Computing 10(2), 200-212, 2020

    J-STAGE 

  • A Study on Ad-hoc Network with BLE Advertisement

    Ito Atsushi , Takahashi Kai

    … In Japan, there is a high chance of getting damage from earthquakes, tsunamis, and typhoons, so we need to get information about where to evacuate quickly. … In this paper, we will explain the outline of our system and the result of the experiment of the performance of the ad-hoc network with BLE Advertisement. … The performance includes the reachability of transmitted packets, the routability of the routing protocol we developed. …

    International Journal of Networking and Computing 10(2), 94-110, 2020

    J-STAGE 

  • DC-Balanced Improvement of Interlaken Protocol

    YOOWATTANA Sarat , EKPANYAPONG Mongkol

    … <p>High-speed serial data communication is essential for connecting peripherals in high-performance computing systems. … Interlaken is a high-speed serial data communication protocol that has been widely adopted in various applications as it can run on multiple medias such as PCBs, blackplans or over cables. …

    IEICE Transactions on Communications, 2020

    J-STAGE 

  • FDN: Function Delivery Network - Optimizing Service Chain Deployment in NFV

    HIRWE Anish , KATAOKA Kotaro

    … <p>The static deployment of Virtualized Network Functions (VNFs) introduces 1) significant degradation of Quality of Service (QoS), 2) inefficiency in the network and computing resource utilization, and 3) Network Function Virtualization (NFV)-based services with insufficient scalability, optimality, and flexibility. … Caching VNFs is a promising solution to satisfy the dynamic demand to deploy a variety of VNFs and to maximize the performance as well as cost effectiveness. …

    IEICE Transactions on Communications E103.B(7), 712-725, 2020

    J-STAGE 

  • High Resolution Patterning of Functional Inks using Wettability and Repellency Control Method and Its Application to Electronic Devices

    Hamaguchi Hitoshi , Wada Mitsuhiro , Yasuda Hiroyuki , Kawaguchi Kazuo , Ueda Jirou , Kuriyama Keisuke

    … <p>High performance and easily processable wettable/repellent patterns formation were achieved using photo-induced surface control materials (PISC) by conventional i-line exposure and annealing. … Functional inks can be patterned spontaneously on exposed surface which realize high resolution patterning by drop-coating methods. …

    Journal of Photopolymer Science and Technology 33(4), 381-386, 2020

    J-STAGE 

  • Global Simulations of the Atmosphere at 1.45 km Grid-Spacing with the Integrated Forecasting System

    DUEBEN Peter D. , WEDI Nils , SAARINEN Sami , ZEMAN Christian

    <p>Global simulations with 1.45 km grid spacing are presented that were performed using the Integrated Forecasting System (IFS) of the European Centre for Medium-Range Weather Forecasts (ECMWF). …

    Journal of the Meteorological Society of Japan. Ser. II 98(3), 551-572, 2020

    J-STAGE 

  • Image recognition model based on convolutional reservoir computing  [in Japanese]

    YONEMURA Yoshihiro , KATORI Yuichi

    … <p>The convolutional neural network (CNN) achieves high accuracy score in image recognition tasks by extracting spatial features of input images and can be utilized to construct a classifier by combining with other machine learning techniques. … Reservoir computing (RC) generates complex time series with simple learning rule. … In this research, we construct a model composed of CNN and RC and analyze its performance. …

    Proceedings of the Annual Conference of JSAI JSAI2020(0), 4Rin183-4Rin183, 2020

    J-STAGE 

  • Locally mesh-refined lattice Boltzmann method for fuel debris air cooling analysis on GPU supercomputer

    ONODERA Naoyuki , IDOMURA Yasuhiro , UESAWA Shinichiro , YAMASHITA Susumu , YOSHIDA Hiroyuki

    … Japan Atomic Energy Agency (JAEA) has been evaluating the air cooling performance of the fuel debris by using the JUPITER code based on an incompressible fluid model and the CityLBM code based on the lattice Boltzmann method (LBM). …

    Mechanical Engineering Journal 7(3), 19-00531-19-00531, 2020

    J-STAGE 

  • <b>Recent Research and Development on Numerical Simulation Techniques in Railway Dynamics</b>

    UEHAN Fumiaki

    … The main mission of this division, is to develop railway simulators using advanced numerical simulation techniques and high performance computing. …

    Quarterly Report of RTRI 61(2), 86-89, 2020

    J-STAGE 

  • Flex-LIONS: a Silicon Photonic Bandwidth-Reconfigurable Optical Switch Fabric

    Proietti Roberto , Xiao Xian , Fariborz Marjan , Fotouhi Pouya , Zhang Yu , Yoo S.J.Ben

    … <p>This paper summarizes our recent studies on architecture, photonic integration, system validation and networking performance analysis of a flexible low-latency interconnect optical network switch (Flex-LIONS) for datacenter and high-performance computing (HPC) applications. …

    IEICE Transactions on Communications, 2020

    J-STAGE 

  • Co-Design of Binary Processing in Memory ReRAM Array and DNN Model Optimization Algorithm

    GUAN Yue , OHSAWA Takashi

    … However, the computation complexity of DNN is extremely high. … Furthermore, the performance of traditional von Neumann computing architecture has been slowing down due to the memory wall problem. … Deployed with such co-design model, ReRAM array processes DNN with high robustness against fabrication fluctuation.</p> …

    IEICE Transactions on Electronics, 2020

    J-STAGE 

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