Data Filtering

14,000,000 Leading Edge Experts on the ideXlab platform

Scan Science and Technology

Contact Leading Edge Experts & Companies

Scan Science and Technology

Contact Leading Edge Experts & Companies

The Experts below are selected from a list of 167502 Experts worldwide ranked by ideXlab platform

Feng Ding - One of the best experts on this subject based on the ideXlab platform.

  • Data Filtering based maximum likelihood gradient estimation algorithms for a multivariate equation error system with arma noise
    Journal of The Franklin Institute-engineering and Applied Mathematics, 2020
    Co-Authors: Lijuan Liu, Ahmed Alsaedi, Feng Ding, Haibo Liu, Tasawar Hayat
    Abstract:

    Abstract In this paper, we use the maximum likelihood principle and the Data Filtering technique to study the identification issue of the multivariate equation-error system whose outputs are contaminated by an ARMA noise process. The key is to break the system into several regressive identification subsystems based on the number of the outputs. Then a multivariate equation-error subsystem is transformed into a filtered model and a filtered noise model, and a Filtering based maximum likelihood extended stochastic gradient algorithm is derived to estimate the parameters of these two models. The Filtering based maximum likelihood extended stochastic gradient algorithm has higher parameter estimation accuracy than the maximum likelihood generalized extended stochastic gradient algorithm and the maximum likelihood recursive generalized extended least squares algorithm. The simulation examples indicate that the proposed methods work well.

  • maximum likelihood recursive identification for the multivariate equation error autoregressive moving average systems using the Data Filtering
    IEEE Access, 2019
    Co-Authors: Lijuan Liu, Ahmed Alsaedi, Feng Ding, Jian Pan, Tasawar Hayat
    Abstract:

    The maximum likelihood principle has wide applications in system identification. This paper studies the maximum likelihood identification problems of the multivariate equation-error systems with colored noise. The system is broken down into several subsystems based on the number of the outputs. The key is to transform the subsystem into a controlled autoregressive moving average model and a noise model. Based on the maximum likelihood principle and the Data Filtering technique, a Filtering-based maximum likelihood recursive generalized extended least squares algorithm is presented for estimating the parameters of these two models. For comparison, a maximum likelihood recursive generalized extended least squares algorithm is presented. Finally, the simulation example results confirm the effectiveness of the two algorithms.

  • auxiliary model based recursive generalized least squares algorithm for multivariate output error autoregressive systems using the Data Filtering
    Circuits Systems and Signal Processing, 2019
    Co-Authors: Feng Ding
    Abstract:

    This paper focuses on the parameter estimation problem of multivariate output-error autoregressive systems. Based on the Data Filtering technique and the auxiliary model identification idea, we derive a Filtering-based auxiliary model recursive generalized least squares algorithm. The key is to filter the input–output Data and to derive two identification models, one of which includes the system parameters and the other contains the noise parameters. Compared with the auxiliary model-based recursive generalized least squares algorithm, the proposed algorithm requires less computational burden and can generate more accurate parameter estimates. Finally, an illustrative example is provided to verify the effectiveness of the proposed algorithm.

  • adaptive gradient based iterative algorithm for multivariable controlled autoregressive moving average systems using the Data Filtering technique
    Complexity, 2018
    Co-Authors: Xiao Jiang, Feng Ding, Wenfang Ding
    Abstract:

    The identification problem of multivariable controlled autoregressive systems with measurement noise in the form of the moving average process is considered in this paper. The key is to filter the input–output Data using the Data Filtering technique and to decompose the identification model into two subidentification models. By using the negative gradient search, an adaptive Data Filtering-based gradient iterative (F-GI) algorithm and an F-GI with finite measurement Data are proposed for identifying the parameters of multivariable controlled autoregressive moving average systems. In the numerical example, we illustrate the effectiveness of the proposed identification methods.

  • Recursive least squares identification methods for multivariate pseudo-linear systems using the Data Filtering
    Multidimensional Systems and Signal Processing, 2018
    Co-Authors: Ping Ma, Ahmed Alsaedi, Feng Ding, Tasawar Hayat
    Abstract:

    This paper concerns the parameter identification methods of multivariate pseudo-linear autoregressive systems. A multivariate recursive generalized least squares algorithm is presented as a comparison. By using the Data Filtering technique, a multivariate pseudo-linear autoregressive system is transformed into a filtered system model and a filtered noise model, and a Filtering based multivariate recursive generalized least squares algorithm is developed for estimating the parameters of these two models. The proposed algorithm achieves a higher computational efficiency than the multivariate recursive generalized least squares algorithm, and the simulation results prove that the proposed method is effective.

Tasawar Hayat - One of the best experts on this subject based on the ideXlab platform.

  • Data Filtering based maximum likelihood gradient estimation algorithms for a multivariate equation error system with arma noise
    Journal of The Franklin Institute-engineering and Applied Mathematics, 2020
    Co-Authors: Lijuan Liu, Ahmed Alsaedi, Feng Ding, Haibo Liu, Tasawar Hayat
    Abstract:

    Abstract In this paper, we use the maximum likelihood principle and the Data Filtering technique to study the identification issue of the multivariate equation-error system whose outputs are contaminated by an ARMA noise process. The key is to break the system into several regressive identification subsystems based on the number of the outputs. Then a multivariate equation-error subsystem is transformed into a filtered model and a filtered noise model, and a Filtering based maximum likelihood extended stochastic gradient algorithm is derived to estimate the parameters of these two models. The Filtering based maximum likelihood extended stochastic gradient algorithm has higher parameter estimation accuracy than the maximum likelihood generalized extended stochastic gradient algorithm and the maximum likelihood recursive generalized extended least squares algorithm. The simulation examples indicate that the proposed methods work well.

  • maximum likelihood recursive identification for the multivariate equation error autoregressive moving average systems using the Data Filtering
    IEEE Access, 2019
    Co-Authors: Lijuan Liu, Ahmed Alsaedi, Feng Ding, Jian Pan, Tasawar Hayat
    Abstract:

    The maximum likelihood principle has wide applications in system identification. This paper studies the maximum likelihood identification problems of the multivariate equation-error systems with colored noise. The system is broken down into several subsystems based on the number of the outputs. The key is to transform the subsystem into a controlled autoregressive moving average model and a noise model. Based on the maximum likelihood principle and the Data Filtering technique, a Filtering-based maximum likelihood recursive generalized extended least squares algorithm is presented for estimating the parameters of these two models. For comparison, a maximum likelihood recursive generalized extended least squares algorithm is presented. Finally, the simulation example results confirm the effectiveness of the two algorithms.

  • Recursive least squares identification methods for multivariate pseudo-linear systems using the Data Filtering
    Multidimensional Systems and Signal Processing, 2018
    Co-Authors: Ping Ma, Ahmed Alsaedi, Feng Ding, Tasawar Hayat
    Abstract:

    This paper concerns the parameter identification methods of multivariate pseudo-linear autoregressive systems. A multivariate recursive generalized least squares algorithm is presented as a comparison. By using the Data Filtering technique, a multivariate pseudo-linear autoregressive system is transformed into a filtered system model and a filtered noise model, and a Filtering based multivariate recursive generalized least squares algorithm is developed for estimating the parameters of these two models. The proposed algorithm achieves a higher computational efficiency than the multivariate recursive generalized least squares algorithm, and the simulation results prove that the proposed method is effective.

  • Data Filtering based maximum likelihood extended gradient method for multivariable systems with autoregressive moving average noise
    Journal of The Franklin Institute-engineering and Applied Mathematics, 2018
    Co-Authors: Tasawar Hayat, Feng Ding, Feiyan Chen, Ling Xu
    Abstract:

    Abstract For multivariable systems with autoregressive moving average noises, we decompose the multivariable system into m subsystems (m denotes the number of outputs) and present a maximum likelihood generalized extended gradient algorithm and a Data Filtering based maximum likelihood extended gradient algorithm to estimate the parameter vectors of these subsystems. By combining the maximum likelihood principle and the Data Filtering technique, the proposed algorithms are effective and have computational advantages over existing estimation algorithms. Finally, a numerical simulation example is given to support the developed methods and to show their effectiveness.

  • Data Filtering based multi innovation extended gradient method for controlled autoregressive autoregressive moving average systems using the maximum likelihood principle
    Mathematics and Computers in Simulation, 2017
    Co-Authors: Feiyan Chen, Ahmed Alsaedi, Tasawar Hayat, Feng Ding
    Abstract:

    This paper combines the Data Filtering technique with the maximum likelihood principle for parameter estimation of controlled autoregressive ARMA (autoregressive moving average) systems. We use an estimated noise transfer function to filter the input–output Data and derive a Filtering based maximum likelihood multi-innovation extended gradient algorithm to estimate the parameters of the systems by replacing the unmeasurable variables in the information vectors with their estimates. A maximum likelihood generalized extended gradient algorithm is given for comparison. A numerical simulation is given to support the developed methods.

Yanjiao Wang - One of the best experts on this subject based on the ideXlab platform.

Jae-woo Chang - One of the best experts on this subject based on the ideXlab platform.

  • APSCC - A Sampling-Based Data Filtering Scheme for Reducing Energy Consumption in Wireless Sensor Networks
    2011 IEEE Asia-Pacific Services Computing Conference, 2011
    Co-Authors: Seung-tae Hong, Jae-woo Chang
    Abstract:

    Wireless sensor networks (WSN) are widely used in the various monitoring systems. When implementing WSN-based monitoring systems, there are three important issues to be considered. At first, we should consider a node failure detection method to provide continuous monitoring. Secondly, because sensor nodes use limited battery power, we need an efficient Data Filtering method to reduce energy consumption. At last, we should consider a Data Filtering method for reducing processing overhead. The existing Kalman Filtering scheme has good performance on Data Filtering, but it causes too much processing overhead for estimating sensed Data. To solve this problem, we, in this paper, propose a sampling-based Data Filtering scheme based on statistical Data analysis. First, our scheme periodically aggregates nodes' survival massages to support node failure detection. Secondly, to reduce energy consumption, our scheme sends the sampled Data including node survival massage and perform Data Filtering based on the messages. Finally, it analyzes the sampled Data to estimate Filtering range at a server. As a result, each sensor node can use only a simple compare operation for Filtering Data. Through performance analysis, we show that our scheme outperforms the Kalman Filtering scheme in terms of the number of Data transmissions.

  • HPCC - A New Data Filtering Scheme Based on Statistical Data Analysis for Monitoring Systems in Wireless Sensor Networks
    2011 IEEE International Conference on High Performance Computing and Communications, 2011
    Co-Authors: Seung-tae Hong, Jae-woo Chang
    Abstract:

    Recently, wireless sensor networks (WSN) are actively used for various monitoring systems. While implementing WSN-based monitoring systems, there are three important issues to be considered. At first, we should consider a node failure detection method to provide continuous monitoring. Secondly, because sensor nodes use limited battery power, we need an efficient Data Filtering method to reduce energy consumption. At last, we should consider a Data Filtering method for reducing processing overhead. The existing Kalman Filtering scheme has good performance on Data Filtering, but it causes too much processing overhead for estimating sensed Data. To solve this problem, we, in this paper, propose a new Data Filtering scheme based on statistical Data analysis. First, the proposed scheme periodically aggregates nodes' survival massages to support node failure detection. Secondly, to reduce energy consumption, the proposed scheme sends the sample Data including node survival massage and perform Data Filtering based on the messages. Finally, it analyzes the sample Data to estimate Filtering range at a server. As a result, each sensor node can use only a simple compare operation for Filtering Data. Through performance analysis, we show that the proposed scheme outperforms the Kalman Filtering scheme in terms of the number of messages transmission.

Erfu Yang - One of the best experts on this subject based on the ideXlab platform.