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Training an extreme learning machine by localized generalization error model

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Abstract

Extreme learning machine (ELM) is a non-iterative algorithm for training single-hidden layer feed-forward networks, whose training speed is much faster than those of conventional neural networks. However, its objective is only to minimize the empirical risk, which may cause overfitting easily. To overcome this defect, this paper proposes a novel algorithm named LGE2LM based on the localized generalization error model which provides an upper bound of generalization error through adopting the stochastic sensitivity. LGE2LM aims to improve the generalization capability of ELM by using the regularization technique which makes a trade-off between the empirical risk and the stochastic sensitive measure. The essence of LGE2LM is a quadratic problem without iterative process. Similar to ELM, all the parameters of this new algorithm are obtained without tuning, which makes the efficiency of LGE2LM much higher than those of traditional neural networks. Several experiments conducted on both artificial and real-world datasets show that LGE2LM has much better generalization capability and stronger robustness in comparison with ELM.

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Acknowledgements

This work is supported by the Macao Science and Technology Development Funds (100/2013/A3 and 081/2015/A3), the National Natural Science Foundation of China (Grant 61772344 and Grant 61732011), in part by the Natural Science Foundation of SZU (Grant 827-000140, Grant 827-000230, and Grant 2017060), the National Social Science Foundation of China (17BTQ068), the Youth Foundation Project of Hebei Natural Science Foundation of China (F2018511002).

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Correspondence to Eric C. C. Tsang.

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This article does not contain any studies with human participants or animals performed by any of the authors.

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Informed consent was obtained from all individual participants included in the study.

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Communicated by X. Wang, M. Pelillo, A. K. Sangaiah.

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Zhu, H., Tsang, E.C.C. & Zhu, J. Training an extreme learning machine by localized generalization error model. Soft Comput 22, 3477–3485 (2018). https://doi.org/10.1007/s00500-018-3012-5

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  • DOI: https://doi.org/10.1007/s00500-018-3012-5

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