Distributed Extreme Learning Machine for Nonlinear Learning over Network

Distributed data collection and analysis over a network are ubiquitous, especially over a wireless sensor network (WSN). To our knowledge, the data model used in most of the distributed algorithms is linear. However, in real applications, the linearity of systems is not always guaranteed. In nonline...

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Main Authors: Songyan Huang, Chunguang Li
Format: Article
Language:English
Published: MDPI AG 2015-02-01
Series:Entropy
Subjects:
Online Access:http://www.mdpi.com/1099-4300/17/2/818
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author Songyan Huang
Chunguang Li
author_facet Songyan Huang
Chunguang Li
author_sort Songyan Huang
collection DOAJ
description Distributed data collection and analysis over a network are ubiquitous, especially over a wireless sensor network (WSN). To our knowledge, the data model used in most of the distributed algorithms is linear. However, in real applications, the linearity of systems is not always guaranteed. In nonlinear cases, the single hidden layer feedforward neural network (SLFN) with radial basis function (RBF) hidden neurons has the ability to approximate any continuous functions and, thus, may be used as the nonlinear learning system. However, confined by the communication cost, using the distributed version of the conventional algorithms to train the neural network directly is usually prohibited. Fortunately, based on the theorems provided in the extreme learning machine (ELM) literature, we only need to compute the output weights of the SLFN. Computing the output weights itself is a linear learning problem, although the input-output mapping of the overall SLFN is still nonlinear. Using the distributed algorithmto cooperatively compute the output weights of the SLFN, we obtain a distributed extreme learning machine (dELM) for nonlinear learning in this paper. This dELM is applied to the regression problem and classification problem to demonstrate its effectiveness and advantages.
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spelling doaj.art-191df3204339463b923b6167bfbe50b12022-12-22T01:56:27ZengMDPI AGEntropy1099-43002015-02-0117281884010.3390/e17020818e17020818Distributed Extreme Learning Machine for Nonlinear Learning over NetworkSongyan Huang0Chunguang Li1Department of Information Science and Electronic Engineering, Zhejiang University, Hangzhou 310027, ChinaDepartment of Information Science and Electronic Engineering, Zhejiang University, Hangzhou 310027, ChinaDistributed data collection and analysis over a network are ubiquitous, especially over a wireless sensor network (WSN). To our knowledge, the data model used in most of the distributed algorithms is linear. However, in real applications, the linearity of systems is not always guaranteed. In nonlinear cases, the single hidden layer feedforward neural network (SLFN) with radial basis function (RBF) hidden neurons has the ability to approximate any continuous functions and, thus, may be used as the nonlinear learning system. However, confined by the communication cost, using the distributed version of the conventional algorithms to train the neural network directly is usually prohibited. Fortunately, based on the theorems provided in the extreme learning machine (ELM) literature, we only need to compute the output weights of the SLFN. Computing the output weights itself is a linear learning problem, although the input-output mapping of the overall SLFN is still nonlinear. Using the distributed algorithmto cooperatively compute the output weights of the SLFN, we obtain a distributed extreme learning machine (dELM) for nonlinear learning in this paper. This dELM is applied to the regression problem and classification problem to demonstrate its effectiveness and advantages.http://www.mdpi.com/1099-4300/17/2/818distributed learningextreme learning machinenonlinear learningdiffusionleast-mean square (LMS)recursive least squares (RLS)regressionclassification
spellingShingle Songyan Huang
Chunguang Li
Distributed Extreme Learning Machine for Nonlinear Learning over Network
Entropy
distributed learning
extreme learning machine
nonlinear learning
diffusion
least-mean square (LMS)
recursive least squares (RLS)
regression
classification
title Distributed Extreme Learning Machine for Nonlinear Learning over Network
title_full Distributed Extreme Learning Machine for Nonlinear Learning over Network
title_fullStr Distributed Extreme Learning Machine for Nonlinear Learning over Network
title_full_unstemmed Distributed Extreme Learning Machine for Nonlinear Learning over Network
title_short Distributed Extreme Learning Machine for Nonlinear Learning over Network
title_sort distributed extreme learning machine for nonlinear learning over network
topic distributed learning
extreme learning machine
nonlinear learning
diffusion
least-mean square (LMS)
recursive least squares (RLS)
regression
classification
url http://www.mdpi.com/1099-4300/17/2/818
work_keys_str_mv AT songyanhuang distributedextremelearningmachinefornonlinearlearningovernetwork
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