Papers › Deep Reinforcement Learning of Marked Temporal Point Processes

Deep Reinforcement Learning of Marked Temporal Point Processes

23 May 2018NeurIPS 2018 12arXiv:1805.09360archive 2025-07-28

Utkarsh Upadhyay, Abir De, Manuel Gomez-Rodriguez

In a wide variety of applications, humans interact with a complex environment by means of asynchronous stochastic discrete events in continuous time. Can we design online interventions that will help humans achieve certain goals in such asynchronous setting? In this paper, we address the above problem from the perspective of deep reinforcement learning of marked temporal point processes, where both the actions taken by an agent and the feedback it receives from the environment are asynchronous stochastic discrete events characterized using marked temporal point processes. In doing so, we define the agent's policy using the intensity and mark distribution of the corresponding process and then derive a flexible policy gradient method, which embeds the agent's actions and the feedback it receives into real-valued vectors using deep recurrent neural networks. Our method does not make any assumptions on the functional form of the intensity and mark distribution of the feedback and it allows for arbitrarily complex reward functions. We apply our methodology to two different applications in personalized teaching and viral marketing and, using data gathered from Duolingo and Twitter, we show that it may be able to find interventions to help learners and marketers achieve their goals more effectively than alternatives.

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Deep Reinforcement Learning Marketing Point Processes Reinforcement Learning Reinforcement Learning (RL)reinforcement-learning

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