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Treating Epilepsy by Reinforcement Learning Via Manifold-Based Simulation

机译:通过基于歧管的模拟来治疗癫痫癫痫

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摘要

The ability to take intelligent actions in real-world domains is a goal of great interest in the machine learning community. Unfortunately, the real-world is filled with systems that can be partially observed but cannot, as yet, be described by first principle models. Moreover, the traditional paradigm of direct interaction with the environment used in reinforcement learning is often prohibitively expensive in practice. An alternative approach simultaneously solves both of these problems by using simulated interaction with the environment rather than real-world experience. The simulation in this approach is a computational model of a dynamical system. The barrier to linking intelligent control with real-world domains is, therefore, one of identifying high-quality state-spaces and transition functions from observations. From a dynamical systems perspective, this barrier is analogous to the problem of finding high-quality manifold embeddings and a rich literature of theory and practice exists to address it. The contribution of this work is two-fold. First, we describe an approach for learning optimal control strategies directly from observations using manifold embeddings as the intermediate state representation. Second, we demonstrate how control strategies constructed in this way can answer important scientific questions. As a concrete example, we use our approach to guide experimental decisions in neurostimulation treatments of epilepsy.
机译:在现实世界域中采取智能行动的能力是对机器学习界感兴趣的目标。不幸的是,现实世界充满了可以部分观察的系统,但不能通过第一原理模型来描述。此外,与强化学习中使用的环境的直接相互作用的传统范式通常在实践中经常过于昂贵。通过使用与环境的模拟互动而非现实世界体验,替代方法同时解决这些问题。该方法中的仿真是动态系统的计算模型。因此,将智能控制与现实世界域连接的障碍是识别高质量状态空间和从观察的转换功能之一。从动态系统的角度来看,这种障碍类似于找到高质量的歧管嵌入品的问题,并且存在丰富的理论和实践的文学来解决它。这项工作的贡献是两倍。首先,我们描述了一种学习最佳控制策略的方法,这些方法是使用歧管嵌入的观察结果作为中间状态表示。其次,我们展示了以这种方式构建的控制策略如何回答重要的科学问题。作为一个具体的例子,我们使用我们的方法来指导癫痫神经刺激治疗中的实验决策。

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  • 来源
    《AAAI Symposium》|2010年||共2页
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  • 作者

    Keith Bush; Joelle Pineau;

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  • 原文格式 PDF
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  • 中图分类 TP18-53;
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  • 入库时间 2022-08-21 08:10:03

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