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Population Based Training of Neural Networks

22 Pith papers cite this work. Polarity classification is still indexing.

22 Pith papers citing it
abstract

Neural networks dominate the modern machine learning landscape, but their training and success still suffer from sensitivity to empirical choices of hyperparameters such as model architecture, loss function, and optimisation algorithm. In this work we present \emph{Population Based Training (PBT)}, a simple asynchronous optimisation algorithm which effectively utilises a fixed computational budget to jointly optimise a population of models and their hyperparameters to maximise performance. Importantly, PBT discovers a schedule of hyperparameter settings rather than following the generally sub-optimal strategy of trying to find a single fixed set to use for the whole course of training. With just a small modification to a typical distributed hyperparameter training framework, our method allows robust and reliable training of models. We demonstrate the effectiveness of PBT on deep reinforcement learning problems, showing faster wall-clock convergence and higher final performance of agents by optimising over a suite of hyperparameters. In addition, we show the same method can be applied to supervised learning for machine translation, where PBT is used to maximise the BLEU score directly, and also to training of Generative Adversarial Networks to maximise the Inception score of generated images. In all cases PBT results in the automatic discovery of hyperparameter schedules and model selection which results in stable training and better final performance.

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representative citing papers

What Do Evolutionary Coding Agents Evolve?

cs.NE · 2026-05-19 · unverdicted · novelty 7.0

Evolutionary coding agents achieve most benchmark gains through a small subset of edit types and by cycling previously deleted code lines rather than developing new algorithmic structures.

PopuLoRA: Co-Evolving LLM Populations for Reasoning Self-Play

cs.AI · 2026-05-16 · unverdicted · novelty 6.0

PopuLoRA shows that co-evolving populations of LoRA adapters through cross-evaluated self-play can outperform compute-matched single-agent baselines on multiple code and math reasoning benchmarks.

Differentiable Evolutionary Reinforcement Learning

cs.AI · 2025-12-15 · unverdicted · novelty 6.0

DERL is a differentiable bi-level method that evolves optimal reward structures for RL policies by composing atomic primitives and using meta-gradients from validation performance.

Proximal Policy Distillation

cs.LG · 2024-07-21 · conditional · novelty 6.0

PPD integrates PPO into policy distillation so the student collects and uses its own rewards, yielding better sample efficiency and robustness than standard student-distill or teacher-distill on ATARI, Mujoco, and Procgen tasks.

Attentive Multi-Task Deep Reinforcement Learning

cs.LG · 2019-07-05 · unverdicted · novelty 6.0

Attention mechanism dynamically groups task knowledge at state granularity in multi-task DRL to enable positive transfer and avoid negative transfer, matching or exceeding prior methods with fewer parameters.

Growing Action Spaces

cs.LG · 2019-06-28 · unverdicted · novelty 5.0

A curriculum of growing action spaces combined with simultaneous off-policy value estimation accelerates learning in large multi-agent action spaces.

Can Tabular Foundation Models Guide Exploration in Robot Policy Learning?

cs.RO · 2026-04-30 · unverdicted · novelty 5.0

TFM-S3 uses a tabular foundation model to predict returns and guide intermittent global exploration within an SVD-derived policy subspace, yielding faster early convergence and better final performance than TD3 and population-based methods under fixed rollout budgets.

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Showing 22 of 22 citing papers.