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1.2.2 Framework
ОглавлениеCompared to other fields such as Deep Learning, where well-established frameworks such as Tensor Flow, PyTorch, or MXnet simplify the lives of DL practitioners, the practical implementations of Reinforcement Learning are relatively young. The advent of RL frameworks, however, has already started and we can select from many projects right now that greatly encourage the use of specialized RL techniques. Frameworks such as Tensor Flow or PyTorch have appeared in recent years to help transform pattern recognition into a product, making deep learning easier for practitioners to try and use [17].
In the Reinforcement Learning arena, a similar pattern is starting to play out. We are starting to see the resurgence of many open source libraries and tools to deal with this, both by helping to create new pieces (not by writing from scratch) and above all, by combining different algorithmic components of prebuild. As a consequence, by generating high abstractions of the core components of an RL algorithm, these Reinforcement Learning frameworks support engineers [7].
A significant number of simulations include Deep Reinforcement Learning algorithms, introducing another multiplicative dimension to the time load of Deep Learning itself. This is mainly needed by the architectures we have not yet seen in this sequence, such as, among others, the distributed actor-critic methods or behaviors of multi-agents. But even choosing the best model also involves tuning hyper parameters and searching between different settings of hyper parameters; it can be expensive. All this includes the need for supercomputers based on distributed systems of heterogeneous servers (with multi-core CPUs and hardware accelerators such as GPUs or TPUs) to provide high computing power [18].