Papers › Learning Versatile Skills with Curriculum Masking

Learning Versatile Skills with Curriculum Masking

23 Oct 2024arXiv:2410.17744archive 2025-07-28

Yao Tang, Zhihui Xie, Zichuan Lin, Deheng Ye, Shuai Li

Masked prediction has emerged as a promising pretraining paradigm in offline reinforcement learning (RL) due to its versatile masking schemes, enabling flexible inference across various downstream tasks with a unified model. Despite the versatility of masked prediction, it remains unclear how to balance the learning of skills at different levels of complexity. To address this, we propose CurrMask, a curriculum masking pretraining paradigm for sequential decision making. Motivated by how humans learn by organizing knowledge in a curriculum, CurrMask adjusts its masking scheme during pretraining for learning versatile skills. Through extensive experiments, we show that CurrMask exhibits superior zero-shot performance on skill prompting tasks, goal-conditioned planning tasks, and competitive finetuning performance on offline RL tasks. Additionally, our analysis of training dynamics reveals that CurrMask gradually acquires skills of varying complexity by dynamically adjusting its masking scheme.

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Mixed_masking yaotang23/currmask/agent/mask_methods.py official repository ran · fixture could not drive it fingerprinted MIT (permissive) · 7767e471782990d8 · report
fixed_seq_masking yaotang23/currmask/agent/mask_methods.py official repository ran · fixture could not drive it fingerprinted MIT (permissive) · 21acbe29a438912f · report
random_masking yaotang23/currmask/agent/mask_methods.py official repository ran · fixture could not drive it fingerprinted MIT (permissive) · b1e53909e0b67f59 · report

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Decision MakingOffline RLReinforcement Learning (RL)Sequential Decision Making

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