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Deep Generative Model

Definition
AI-generated

A deep generative model is a neural network that defines or approximates a distribution over high-dimensional data—images, sequences, tabular features, or count matrices—using architectures such as variational autoencoders, generative adversarial networks, normalizing flows, autoregressive models, or diffusion frameworks.

Why it matters in GWAS

Generative models underpin reference mapping, batch harmonization, synthetic controls, and phenotype or molecular imputation in resource-scarce settings. When linked to genetic data, their latent spaces and simulators must be audited for ancestry, batch, and selection bias so downstream association or polygenic analyses are not silently distorted.

Example usage

"The methods use Deep Generative Model to improve representation learning before downstream association tasks."

References

  • Goodfellow I, et al. (2014). Generative adversarial nets. NeurIPS.
  • Kingma DP, Welling M. (2014). Auto-encoding variational Bayes. ICLR.
  • Bond-Taylor S, et al. (2022). Deep generative modelling: a comparative review of VAEs, GANs, normalizing flows, energy-based and autoregressive models. IEEE TPAMI.

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