ترجمه فارسی مقاله یکپارچه‌سازی توکن‌های ورودی چند وجهی در مدل‌های تصمیم‌گیری مبتنی بر Mamba: Decision MetaMamba

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  مشاهده نمونه نسخه آزمونی

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چکیده

Return-Conditioned Transformer Decision Models (RCTDM) have demonstrated the potential to enhance transformer performance in offline reinforcement learning by replacing rewards in the input sequence with returns-to-go. However, to achieve the goal of learning an optimal policy from offline datasets composed of limited suboptimal trajectories, RCTDM required alternative methods. One prominent approach, trajectory stitching, was designed to enable the network to combine multiple trajectories to find the optimal path. To implement this using only transformers without auxiliary networks, it was necessary to shorten the input sequence length to better capture the Markov property in reinforcement learnings. This, however, introduced a trade-off, as it reduced the accuracy of action inference. Our study introduces a model named Decision MetaMamba to resolve these challenges. DMM employs an input token mixer to extract patterns from short sequences and uses a State Space Model (SSM) to selectively combine information from relatively distant sequences. Inspired by Metaformer, this structure was developed by transforming Mamba's input layer into various multi-modal layers. Fortunately, with the advent of Mamba, implemented using parallel selective scanning, we achieved a high-performance sequence model capable of replacing transformers. Based on these innovations, DMM demonstrated excellent performance across various datasets in offline RL, confirming that models using SSM can improve performance by domain-specific alterations of the input layer. Additionally, it maintained its performance even in lightweight models with fewer parameters. These results suggest that decision models based on SSM can pave the way for improved outcomes in future developments.

چکیده به فارسی (ترجمه ماشینی)