Bag of Baselines for Multi-objective Joint Neural Architecture Search and Hyperparameter Optimization

authored by

Julia Guerrero-Viu, Sven Hauns, Sergio Izquierdo, Guilherme Miotto, Simon Schrodi, André Biedenkapp, Thomas Elsken, Difan Deng, Marius Lindauer, Frank Hutter

Abstract

Neural architecture search (NAS) and hyperparameter optimization (HPO) make deep learning accessible to non-experts by automatically finding the architecture of the deep neural network to use and tuning the hyperparameters of the used training pipeline. While both NAS and HPO have been studied extensively in recent years, NAS methods typically assume fixed hyperparameters and vice versa - there exists little work on joint NAS + HPO. Furthermore, NAS has recently often been framed as a multi-objective optimization problem, in order to take, e.g., resource requirements into account. In this paper, we propose a set of methods that extend current approaches to jointly optimize neural architectures and hyperparameters with respect to multiple objectives. We hope that these methods will serve as simple baselines for future research on multi-objective joint NAS + HPO. To facilitate this, all our code is available at github.com/automl/multi-obj-baselines.

Organisation(s)

Institute of Information Processing
Machine Learning Section

External Organisation(s)

University of Freiburg
Bosch Center for Artificial Intelligence (BCAI)

Type

Conference contribution

No. of pages

22

Publication date

2021

Publication status

E-pub ahead of print

Peer reviewed

Yes

Electronic version(s)

https://arxiv.org/abs/2105.01015 (Access: Open)
https://openreview.net/forum?id=yEGlj93aLFY (Access: Open)