option-critic 6 a2c 4 deep-reinforcement-learning 4 ppo 4 ddpg 3 dqn 3 option-critic-architecture 3 pytorch 3 reinforcement-learning 3 categorical-dqn 2 td3 2 prioritized-experience-replay 1 quantile-regression 1 rainbow 1 acktr 1 sac 1 hierarchical-reinforcement-learning 1 policy-gradient 1 proximal-policy-optimization 1 pytorch-rl 1 options 1 tensorflow 1 dueling-network-architecture 1 double-dqn 1 deeprl 1 search-engine 1 scalability 1 recommender-systems 1 recommendation-system 1 recommendation 1 python 1 machine-learning 1 gpu 1 deepsearch 1 deep-neural-networks 1