Training Language Models Using Target-Propagation

February 15, 2017 ยท Declared Dead ยท ๐Ÿ› arXiv.org

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Authors Sam Wiseman, Sumit Chopra, Marc'Aurelio Ranzato, Arthur Szlam, Ruoyu Sun, Soumith Chintala, Nicolas Vasilache arXiv ID 1702.04770 Category cs.CL: Computation & Language Cross-listed cs.LG, cs.NE Citations 9 Venue arXiv.org Last Checked 5 months ago
Abstract
While Truncated Back-Propagation through Time (BPTT) is the most popular approach to training Recurrent Neural Networks (RNNs), it suffers from being inherently sequential (making parallelization difficult) and from truncating gradient flow between distant time-steps. We investigate whether Target Propagation (TPROP) style approaches can address these shortcomings. Unfortunately, extensive experiments suggest that TPROP generally underperforms BPTT, and we end with an analysis of this phenomenon, and suggestions for future work.
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