Transactions of the Institute of Systems, Control and Information Engineers
New Arrival Alert : OFF

You can use this feature after you logged into the site.
Please click the button below.

Log in / Sign up
ONLINE ISSN: 2185-811X
PRINT ISSN: 1342-5668

Transactions of the Institute of Systems, Control and Information Engineers Vol. 9 (1996), No. 8

  • A Parallel Algorithm of Scale-Space Filtering

    pp. 347-355

    Bookmark

    You can use this feature after you logged into the site.
    Please click the button below.

    Log in / Sign Up

    DOI:10.5687/iscie.9.347

    Scale Space Filtering (SSF) is a kind of Multi-Scale Descriptions, and it has a problem that the time complexity proportionally increases with the number of the scale parameters. It is difficult to realize the real-time processing of SSF. The authors noticed SSF has a property that the calculation of one scale parameter does not interfere with the other scale parameter's and the calculation of each scale parameter can be executed in parallel. In this paper, the parallel algorithm called “Scale-Axis Division Method” is proposed for speeding up SSF, and it is inspected by the execution results using MIMD parallel machine. Then, the limitation of this method are estimated. Also, the performance of processor for the real-time processing of the underwater data transmission is considered in this algorithm.
  • Model reduction via directional interpolation

    pp. 356-365

    Bookmark

    You can use this feature after you logged into the site.
    Please click the button below.

    Log in / Sign Up

    DOI:10.5687/iscie.9.356

    In this paper, we provide a model reduction method for stable MIMO linear discrete-time systems such that the reduced-order model interpolates a finite series of 1st-order information (information associated with the transfer function) and 2nd-order information (information associated with the power spectrum function) of the original system with respect to a direction. The directional interpolation approach to the model reduction guarantees the stability of the reduced-order model and can suppress the unnecessary increase of its order involved by the increase of interpolated information. We also propose an algorithm of the output frequency-weighted model reduction as an effective application of the model reduction via directional interpolation.
  • A Method for Parameter Estimation in the NARMAX Model Using Neural Computation

    pp. 366-374

    Bookmark

    You can use this feature after you logged into the site.
    Please click the button below.

    Log in / Sign Up

    DOI:10.5687/iscie.9.366

    This paper discusses a method for parameter estimation in the NARMAX (non-linear autoregressive moving average with exogenous inputs) model using neural computation. The primary aim of the method is to examine the structure of biological systems, utilizing the fact that the NARMAX model contains a relatively few parameters. A three-layered feedforward neural network is trained to describe a system. The actual input of the system and the computed output of the network are used as the input data set of the network for training, and values of weights and thresholds in the network are determined to minimize the prediction error between the actual and computed output. Parameters in the NARMAX model are calculated from the values of weights by expanding the sigmoid functions in neural units using Maclaurin's formula. The structure of the NARMAX model is finally determined by information criteria. The proposed method, therefore, requires no prior knowledge of the structure of the NARMAX model. Some numerical examples are presented to illustrate that the propised method can work well for noisy data.
  • Hankel Singular Values of Non-Commensurate Input Delay Systems

    pp. 375-382

    Bookmark

    You can use this feature after you logged into the site.
    Please click the button below.

    Log in / Sign Up

    DOI:10.5687/iscie.9.375

    This paper deals with a problem of computing the Hankel singular values of systems with two-point non-commensurate delays in control. It is explicitly shown that the Gramian can be described as an integral operator with semi-separable kernel function, that is, the sum of a Volterra operator and a finite dimensional one. As a result, the Hankel singular values are computed by solving a transcendental equation.
  • On the Mechanics of Elastomer Shear Pads for Remote Center Compliance (RCC)

    pp. 383-391

    Bookmark

    You can use this feature after you logged into the site.
    Please click the button below.

    Log in / Sign Up

    DOI:10.5687/iscie.9.383

    The mechanical behavior of RCC devices depends on the number of rubber-metal layers in elastomer shear pads, thickness and radius of the rubber and metal, axial and lateral stiffness of the elastomer, which have to be considered for complete analysis or design of the RCC devices. This paper presents a useful method of analyzing the behavior of RCC based on the material mechanics approach. This makes it easy to design a new RCC for a specific purpose. Simulation and experimental results are also presented.
  • Learning Algorithm for Recurrent Neural Network Using Extended Kalman Filter

    pp. 392-394

    Bookmark

    You can use this feature after you logged into the site.
    Please click the button below.

    Log in / Sign Up

    DOI:10.5687/iscie.9.392

Article Access Ranking

16 Sep. (Last 30 Days)

  1. Micro-structure and Mechanical Properties of Induction Heating Quenched and Tempered Spring Steel Tetsu-to-Hagané Vol.73(1987), No.16
  2. Perspective toward Long-term Global Goal for Carbon Dioxide Mitigation in Steel Industry Tetsu-to-Hagané Vol.105(2019), No.6
  3. Preface to the Special Issue on “Recent Progress of Technique Elements for New Cokemaking Process” ISIJ International Vol.59(2019), No.8
  4. Removal of Phosphorus from High-phosphorus Iron Ore with Preliminary Reduction Treatment and Physical Concentration Tetsu-to-Hagané Vol.105(2019), No.9
  5. Atomic and Effective Pair Interactions in FeC Alloy with Point Defects: A Cluster Expansion Study ISIJ International Advance Publication
  6. Quantitative Analyses of Chemical Structural Change and Gas Generation Profile of Coal upon Heating toward Gaining New Insights for Coal Pyrolysis Chemistry ISIJ International Vol.59(2019), No.8
  7. Structure Analysis of High Strength Coke Using X-ray CT ISIJ International Vol.59(2019), No.8
  8. Accuracy Evaluation of Phase-field Models for Grain Growth Simulation with Anisotropic Grain Boundary Properties ISIJ International Advance Publication
  9. Influence of Shape of Cohesive Zone on Gas Flow and Permeability in the Blast Furnace Analyzed by DEM-CFD Model ISIJ International Vol.55(2015), No.6
  10. Perspective on Progressive Development of Oxygen Blast Furnace for Energy Saving ISIJ International Vol.55(2015), No.9

Search Phrase Ranking

16 Sep. (Last 30 Days)

  1. blast furnace
  2. blast furnace permeability
  3. blast furnace productivity
  4. micro-structure and mechanical properties of induction heating quenched and tempered spring steel
  5. mold
  6. tic&steel&solidification
  7. steel
  8. continuous casting
  9. ferrosilicon
  10. isij