期刊
IEEE TRANSACTIONS ON CYBERNETICS
卷 51, 期 1, 页码 359-372出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TCYB.2019.2925883
关键词
Data models; Data analysis; Computational modeling; Analytical models; Approximation algorithms; Neural networks; Buildings; Image data analytics; randomized algorithms; 2-D stochastic configuration networks (2DSCNs)
类别
资金
- National Natural Science Foundation of China [61802132, 61890924]
- China Post-Doctoral Science Foundation [2019T120737]
The study extends original SCNs to 2DSCNs for fast building randomized learners with matrix inputs, showing good potential for image data analytics.
Stochastic configuration networks (SCNs) as a class of randomized learner model have been successfully employed in data analytics due to its universal approximation capability and fast modeling property. The technical essence lies in stochastically configuring the hidden nodes (or basis functions) based on a supervisory mechanism rather than data-independent randomization as usually adopted for building randomized neural networks. Given image data modeling tasks, the use of 1-D SCNs potentially demolishes the spatial information of images, and may result in undesirable performance. This paper extends the original SCNs to a 2-D version, called 2DSCNs, for fast building randomized learners with matrix inputs. Some theoretical analysis on the goodness of 2DSCNs against SCNs, including the complexity of the random parameter space and the superiority of generalization, are presented. Empirical results over one regression example, four benchmark handwritten digit classification tasks, two human face recognition datasets, as well as one natural image database, demonstrate that the proposed 2DSCNs perform favorably and show good potential for image data analytics.
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