Computer Science > Machine Learning
[Submitted on 26 May 2023 (v1), last revised 24 Mar 2024 (this version, v4)]
Title:DiffusionNAG: Predictor-guided Neural Architecture Generation with Diffusion Models
View PDF HTML (experimental)Abstract:Existing NAS methods suffer from either an excessive amount of time for repetitive sampling and training of many task-irrelevant architectures. To tackle such limitations of existing NAS methods, we propose a paradigm shift from NAS to a novel conditional Neural Architecture Generation (NAG) framework based on diffusion models, dubbed DiffusionNAG. Specifically, we consider the neural architectures as directed graphs and propose a graph diffusion model for generating them. Moreover, with the guidance of parameterized predictors, DiffusionNAG can flexibly generate task-optimal architectures with the desired properties for diverse tasks, by sampling from a region that is more likely to satisfy the properties. This conditional NAG scheme is significantly more efficient than previous NAS schemes which sample the architectures and filter them using the property predictors. We validate the effectiveness of DiffusionNAG through extensive experiments in two predictor-based NAS scenarios: Transferable NAS and Bayesian Optimization (BO)-based NAS. DiffusionNAG achieves superior performance with speedups of up to 35 times when compared to the baselines on Transferable NAS benchmarks. Furthermore, when integrated into a BO-based algorithm, DiffusionNAG outperforms existing BO-based NAS approaches, particularly in the large MobileNetV3 search space on the ImageNet 1K dataset. Code is available at this https URL.
Submission history
From: Hayeon Lee [view email][v1] Fri, 26 May 2023 13:58:18 UTC (23,588 KB)
[v2] Sun, 31 Dec 2023 00:30:53 UTC (24,799 KB)
[v3] Fri, 19 Jan 2024 21:38:42 UTC (33,902 KB)
[v4] Sun, 24 Mar 2024 22:00:04 UTC (33,903 KB)
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