Work

Task-Agnostic Structured Pruning of Speech Representation Models

Year: 2023
Type: conference-paper
Abstract: Self-supervised pre-trained models such as Wav2vec2, Hubert, and WavLM have been shown to significantly improve many speech tasks. However, their large memory and strong computational requirements hinder their industrial applicability. Structured pruning is a hardware-friendly model compression technique but usually results in a larger loss of accuracy. In this paper, we propose a fine-grained attention head pruning method to compensate for the performance degradation. In addition, we also introduce the straight through estimator into the L0 regularization to further accelerate the pruned model. Experiments on the SUPERB benchmark show that our model can achieve comparable performance to the dense model in multiple tasks and outperforms the Wav2vec 2.0 base model on average, with 72% fewer parameters and 2 times faster inference speed.
Authors: Haoyu Wang, Siyuan Wang, Wei-Qiang Zhang, Suo Hongbin, Yulong Wan
Language: English
Open Access status: green
OpenAlex ID: W4385823417
FWCI: 1.534
Cites:
Cited by: 13
Related to: 10