Can recurrent neural networks warp time? - Inria - Institut national de recherche en sciences et technologies du numérique Access content directly
Conference Papers Year : 2018

Can recurrent neural networks warp time?

Corentin Tallec
  • Function : Author
  • PersonId : 1032966


Successful recurrent models such as long short-term memories (LSTMs) and gated recurrent units (GRUs) use ad hoc gating mechanisms. Empirically these models have been found to improve the learning of medium to long term temporal dependencies and to help with vanishing gradient issues. We prove that learnable gates in a recurrent model formally provide quasi-invariance to general time transformations in the input data. We recover part of the LSTM architecture from a simple axiomatic approach. This result leads to a new way of initializing gate biases in LSTMs and GRUs. Experimentally , this new chrono initialization is shown to greatly improve learning of long term dependencies, with minimal implementation effort. Recurrent neural networks (e.g. (Jaeger, 2002)) are a standard machine learning tool to model and represent temporal data; mathematically they amount to learning the parameters of a parameterized dynamical system so that its behavior optimizes some criterion, such as the prediction of the next data in a sequence.
Fichier principal
Vignette du fichier
iclr_chrono.pdf (973.21 Ko) Télécharger le fichier
Origin : Files produced by the author(s)

Dates and versions

hal-01812064 , version 1 (11-06-2018)


  • HAL Id : hal-01812064 , version 1


Corentin Tallec, Yann Ollivier. Can recurrent neural networks warp time?. International Conference on Learning Representation 2018, Apr 2018, Vancouver, France. ⟨hal-01812064⟩
191 View
205 Download


Gmail Facebook X LinkedIn More