Sedghi, Hanie and Anandkumar, Anima (2016) Training Input-Output Recurrent Neural Networks through Spectral Methods. . (Unpublished) https://resolver.caltech.edu/CaltechAUTHORS:20190401-123315920
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Abstract
We consider the problem of training input-output recurrent neural networks (RNN) for sequence labeling tasks. We propose a novel spectral approach for learning the network parameters. It is based on decomposition of the cross-moment tensor between the output and a non-linear transformation of the input, based on score functions. We guarantee consistent learning with polynomial sample and computational complexity under transparent conditions such as non-degeneracy of model parameters, polynomial activations for the neurons, and a Markovian evolution of the input sequence. We also extend our results to Bidirectional RNN which uses both previous and future information to output the label at each time point, and is employed in many NLP tasks such as POS tagging.
Item Type: | Report or Paper (Discussion Paper) | ||||||||||||||
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Additional Information: | The authors thank Majid Janzamin for discussions on sample complexity and constructive comments on the draft. We thank Ashish Sabharwal for editorial comments on the draft. This work was done during the time H. Sedghi was a visiting researcher at University of California, Irvine and was supported by NSF Career award FG15890. A. Anandkumar is supported in part by Microsoft Faculty Fellowship, NSF Career award CCF-1254106, ONR award N00014-14-1-0665, ARO YIP award W911NF-13-1-0084, and AFOSR YIP award FA9550-15-1-0221. | ||||||||||||||
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Subject Keywords: | Recurrent neural networks, sequence labeling, spectral methods, score function | ||||||||||||||
Record Number: | CaltechAUTHORS:20190401-123315920 | ||||||||||||||
Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20190401-123315920 | ||||||||||||||
Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||||||||||
ID Code: | 94325 | ||||||||||||||
Collection: | CaltechAUTHORS | ||||||||||||||
Deposited By: | George Porter | ||||||||||||||
Deposited On: | 01 Apr 2019 22:11 | ||||||||||||||
Last Modified: | 03 Oct 2019 21:02 |
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