← Search

Erich Elsen

20 accepted papers

2022

An empirical analysis of compute-optimal large language model training

NeurIPS 2022accept

We investigate the optimal model size and number of tokens for training a transformer language model under a given compute budget. We find that current large language models are significantly undertrained, a consequence of the recent focus on scaling language models whilst keeping the amount of trai…

Cited by 171SourcePDFScholar
2022

Improving Language Models by Retrieving from Trillions of Tokens

ICML 2022spotlight

We enhance auto-regressive language models by conditioning on document chunks retrieved from a large corpus, based on local similarity with preceding tokens. With a 2 trillion token database, our Retrieval-Enhanced Transformer (RETRO) obtains comparable performance to GPT-3 and Jurassic-1 on the Pil…

2022

Step-unrolled Denoising Autoencoders for Text Generation

ICLR 2022poster

In this paper we propose a new generative model of text, Step-unrolled Denoising Autoencoder (SUNDAE), that does not rely on autoregressive models. Similarly to denoising diffusion techniques, SUNDAE is repeatedly applied on a sequence of tokens, starting from random inputs and improving them each t…

Cited by 113SourcePDFScholar
2022

The State of Sparse Training in Deep Reinforcement Learning

ICML 2022spotlight

The use of sparse neural networks has seen rapid growth in recent years, particularly in computer vision. Their appeal stems largely from the reduced number of parameters required to train and store, as well as in an increase in learning efficiency. Somewhat surprisingly, there have been very few ef…

2022

Unified Scaling Laws for Routed Language Models

ICML 2022oral

The performance of a language model has been shown to be effectively modeled as a power-law in its parameter count. Here we study the scaling behaviors of Routing Networks: architectures that conditionally use only a subset of their parameters while processing an input. For these models, parameter c…

2021

End-to-end Adversarial Text-to-Speech

ICLR 2021oral

Modern text-to-speech synthesis pipelines typically involve multiple processing stages, each of which is designed or learnt independently from the rest. In this work, we take on the challenging task of learning to synthesise speech from normalised text or phonemes in an end-to-end manner, resulting…

Cited by 239SourcePDFScholar
2021

Practical Real Time Recurrent Learning with a Sparse Approximation

ICLR 2021spotlight

Recurrent neural networks are usually trained with backpropagation through time, which requires storing a complete history of network states, and prohibits updating the weights "online" (after every timestep). Real Time Recurrent Learning (RTRL) eliminates the need for history storage and allows for…

Cited by 22SourcePDFScholar
2020

High Fidelity Speech Synthesis with Adversarial Networks

ICLR 2020talk

Generative adversarial networks have seen rapid development in recent years and have led to remarkable improvements in generative modelling of images. However, their application in the audio domain has received limited attention, and autoregressive models, such as WaveNet, remain the state of the ar…

Cited by 321SourcecodeScholar
2020

Rigging the Lottery: Making All Tickets Winners

ICML 2020poster

Many applications require sparse neural networks due to space or inference time restrictions. There is a large body of work on training dense networks to yield sparse networks for inference, but this limits the size of the largest trainable sparse model to that of the largest trainable dense model.…

2020

Top-KAST: Top-K Always Sparse Training

NeurIPS 2020poster

Sparse neural networks are becoming increasingly important as the field seeks to improve the performance of existing models by scaling them up, while simultaneously trying to reduce power consumption and computational footprint. Unfortunately, most existing methods for inducing performant sparse mod…

Cited by 114SourcePDFScholar
2019

Enabling Factorized Piano Music Modeling and Generation with the MAESTRO Dataset

ICLR 2019oral

Generating musical audio directly with neural networks is notoriously difficult because it requires coherently modeling structure at many different timescales. Fortunately, most music is also highly structured and can be represented as discrete note events played on musical instruments. Herein, we s…

Cited by 629SourcePDFScholar
2018

Efficient Neural Audio Synthesis

ICML 2018oral

Sequential models achieve state-of-the-art results in audio, visual and textual domains with respect to both estimating the data distribution and generating desired samples. Efficient sampling for this class of models at the cost of little to no loss in quality has however remained an elusive proble…

Cited by 1097SourcePDFScholar
2018

Mixed Precision Training

ICLR 2018poster

Increasing the size of a neural network typically improves accuracy but also increases the memory and compute requirements for training the model. We introduce methodology for training deep neural networks using half-precision floating point numbers, without losing model accuracy or having to modify…

Cited by 2212SourcePDFScholar
2018

Parallel WaveNet: Fast High-Fidelity Speech Synthesis

ICML 2018oral

The recently-developed WaveNet architecture is the current state of the art in realistic speech synthesis, consistently rated as more natural sounding for many different languages than any previous system. However, because WaveNet relies on sequential generation of one audio sample at a time, it is…

Cited by 1053SourcePDFScholar
2017

DSD: Dense-Sparse-Dense Training for Deep Neural Networks

ICLR 2017poster

Modern deep neural networks have a large number of parameters, making them very hard to train. We propose DSD, a dense-sparse-dense training flow, for regularizing deep neural networks and achieving better optimization performance. In the first D (Dense) step, we train a dense network to learn conne…

Cited by 265SourcecodeScholar
2016

Deep Speech 2 : End-to-End Speech Recognition in English and Mandarin

ICML 2016poster

We show that an end-to-end deep learning approach can be used to recognize either English or Mandarin Chinese speech–two vastly different languages. Because it replaces entire pipelines of hand-engineered components with neural networks, end-to-end learning allows us to handle a diverse variety of s…

2016

Persistent RNNs: Stashing Recurrent Weights On-Chip

ICML 2016poster

This paper introduces a new technique for mapping Deep Recurrent Neural Networks (RNN) efficiently onto GPUs. We show how it is possi- ble to achieve substantially higher computational throughput at low mini-batch sizes than direct implementations of RNNs based on matrix multiplications. The key to…

Cited by 126SourcePDFScholar