Recently, deep reinforcement learning (RL) algorithms have been advanced, and especially, Importance Weighted Actor-Learner Architecture (IMPALA) outperformed human expert scores in some of the Atari-2600 games. However, in the Bowling of Atari games where there is a serious sparse reward problem, IMPALA has poor performance. The sparse reward problem, which arises from the requirement of a sequence of actions, is a significant challenge in reinforcement learning. To address this problem, we propose human interactive learning with intrinsic reward as a solution. Combining human interactive learning and intrinsic reward into an RL algorithm, we build a sequential action guiding system in the training agent. As a result of combining the feedback neural network and intrinsic reward, experimental results show efficient convergence to a higher score than the baseline algorithm in Bowling.
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J. Kim et. al, "Trends in Lightweight Kernel for Many core Based High-Performance Computing", Electronics and Telecommunications Trends. Vol. 32, No. 4, 2017, KOGL Type 4: Source Indication + Commercial Use Prohibition + Change Prohibition
J. Sim et.al, “the Fourth Industrial Revolution and ICT – IDX Strategy for leading the Fourth Industrial Revolution”, ETRI Insight, 2017, KOGL Type 4: Source Indication + Commercial Use Prohibition + Change Prohibition
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