Sequential Policy Gradient for Adaptive Hyperparameter Optimization

Fuente: arXiv
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Autori principali: Li, Zheng, Cheng, Jerry, Gu, Huanying Helen
Natura: Preprint
Pubblicazione: 2025
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author Li, Zheng
Cheng, Jerry
Gu, Huanying Helen
author_facet Li, Zheng
Cheng, Jerry
Gu, Huanying Helen
contents Reinforcement learning is essential for neural architecture search and hyperparameter optimization, but the conventional approaches impede widespread use due to prohibitive time and computational costs. Inspired by DeepSeek-V3 multi-token prediction architecture, we propose Sequential Policy Gradient modeling (SPG), a novel trajectory generation paradigm for lightweight online hyperparameter optimization. In contrast to conventional policy gradient methods, SPG extends the base model with temporary modules, enabling it to generate state-action (padded) trajectories in a single forward pass. Our experiments demonstrate that models gain performance when retrained with SPG on their original datasets and also outperform standard transfer fine-tuning. We evaluate on five datasets spanning computer vision (ImageNet, COCO), natural language processing (GLUE, SQuAD), and audio (SUPERB) to assess the industrial applicability of SPG. The proposed method demonstrates consistent improvements across widely adopted models, achieving performance gains of $+0.2\sim7\%$, with significantly low computational costs. Fully reproducible code and pre-trained models: https://huggingface.co/UniversalAlgorithmic/SPG.
format Preprint
id arxiv_https___arxiv_org_abs_2506_15051
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Sequential Policy Gradient for Adaptive Hyperparameter Optimization
Li, Zheng
Cheng, Jerry
Gu, Huanying Helen
Machine Learning
Artificial Intelligence
Reinforcement learning is essential for neural architecture search and hyperparameter optimization, but the conventional approaches impede widespread use due to prohibitive time and computational costs. Inspired by DeepSeek-V3 multi-token prediction architecture, we propose Sequential Policy Gradient modeling (SPG), a novel trajectory generation paradigm for lightweight online hyperparameter optimization. In contrast to conventional policy gradient methods, SPG extends the base model with temporary modules, enabling it to generate state-action (padded) trajectories in a single forward pass. Our experiments demonstrate that models gain performance when retrained with SPG on their original datasets and also outperform standard transfer fine-tuning. We evaluate on five datasets spanning computer vision (ImageNet, COCO), natural language processing (GLUE, SQuAD), and audio (SUPERB) to assess the industrial applicability of SPG. The proposed method demonstrates consistent improvements across widely adopted models, achieving performance gains of $+0.2\sim7\%$, with significantly low computational costs. Fully reproducible code and pre-trained models: https://huggingface.co/UniversalAlgorithmic/SPG.
title Sequential Policy Gradient for Adaptive Hyperparameter Optimization
topic Machine Learning
Artificial Intelligence
url https://arxiv.org/abs/2506.15051