Perceiving the World: Question-guided Reinforcement Learning for Text-based Games

• URL: http://arxiv.org/abs/2204.09597v2
• Date: Thu, 21 Apr 2022 06:18:34 GMT
• Title: Perceiving the World: Question-guided Reinforcement Learning for Text-based Games
• Authors: Yunqiu Xu, Meng Fang, Ling Chen, Yali Du, Joey Tianyi Zhou and Chengqi Zhang
• Abstract summary: This paper introduces world-perceiving modules, which automatically decompose tasks and prune actions by answering questions about the environment. We then propose a two-phase training framework to decouple language learning from reinforcement learning, which further improves the sample efficiency.
• Score: 64.11746320061965
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Text-based games provide an interactive way to study natural language processing. While deep reinforcement learning has shown effectiveness in developing the game playing agent, the low sample efficiency and the large action space remain to be the two major challenges that hinder the DRL from being applied in the real world. In this paper, we address the challenges by introducing world-perceiving modules, which automatically decompose tasks and prune actions by answering questions about the environment. We then propose a two-phase training framework to decouple language learning from reinforcement learning, which further improves the sample efficiency. The experimental results show that the proposed method significantly improves the performance and sample efficiency. Besides, it shows robustness against compound error and limited pre-training data.

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