SPSA for layer-wise training of deep networks

Wulff, B.; Schuecker, J.; Bauckhage, C.

Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) 11141 LNCS: 564-573

2018


ISSN/ISBN: 0302-9743
DOI: 10.1007/978-3-030-01424-7_55
Accession: 104607094

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Summary
Concerned with neural learning without backpropagation, we investigate variants of the simultaneous perturbation stochastic approximation (SPSA) algorithm. Experimental results suggest that these allow for the successful training of deep feed-forward neural networks using forward passes only. In particular, we find that SPSA-based algorithms which update network parameters in a layer-wise manner are superior to variants which update all weights simultaneously.