EvoAug: improving generalization and interpretability of genomic deep neural networks with evolution-inspired data augmentations

Abstract Deep neural networks (DNNs) hold promise for functional genomics prediction, but their generalization capability may be limited by the amount of available data. To address this, we propose EvoAug, a suite of evolution-inspired augmentations that enhance the training of genomic DNNs by incre...

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Bibliographic Details
Main Authors: Nicholas Keone Lee, Ziqi Tang, Shushan Toneyan, Peter K. Koo
Format: Article
Language:English
Published: BMC 2023-05-01
Series:Genome Biology
Subjects:
Online Access:https://doi.org/10.1186/s13059-023-02941-w
Description
Summary:Abstract Deep neural networks (DNNs) hold promise for functional genomics prediction, but their generalization capability may be limited by the amount of available data. To address this, we propose EvoAug, a suite of evolution-inspired augmentations that enhance the training of genomic DNNs by increasing genetic variation. Random transformation of DNA sequences can potentially alter their function in unknown ways, so we employ a fine-tuning procedure using the original non-transformed data to preserve functional integrity. Our results demonstrate that EvoAug substantially improves the generalization and interpretability of established DNNs across prominent regulatory genomics prediction tasks, offering a robust solution for genomic DNNs.
ISSN:1474-760X