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arXiv 2111.14746cs.LGcs.AImath.OCmath.STstat.TH
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动态推理

Dynamic Inference

Aolin Xu

摘要:

传统的统计估计或一般的统计推断是静态的,在这个意义上,对感兴趣的量的估计不会改变该量的未来演变。然而,在一些序贯估计问题中,我们遇到了这样的情况,即要估计的数量的未来值取决于其当前值的估计。例子包括大投资者的股票价格预测,交互式产品推荐和多智能体系统中的行为预测。我们可以把这样的问题称为动态推理。在这项工作中,这个问题的贝叶斯概率框架下的配方,并推导出最佳的估计策略作为解决方案,以尽量减少整体的推理损失。通过股票趋势预测和车辆行为预测两个例子说明了最优估计策略是如何工作的。当动态推理的底层模型未知时,我们可以考虑动态推理的学习问题。这个学习问题可以潜在地统一几个熟悉的机器学习问题,包括监督学习,模仿学习和强化学习。

英文摘要:

Traditional statistical estimation, or statistical inference in general, is static, in the sense that the estimate of the quantity of interest does not change the future evolution of the quantity. In some sequential estimation problems however, we encounter the situation where the future values of the quantity to be estimated depend on the estimate of its current value. Examples include stock price prediction by big investors, interactive product recommendation, and behavior prediction in multi-agent systems. We may call such problems as dynamic inference. In this work, a formulation of this problem under a Bayesian probabilistic framework is given, and the optimal estimation strategy is derived as the solution to minimize the overall inference loss. How the optimal estimation strategy works is illustrated through two examples, stock trend prediction and vehicle behavior prediction. When the underlying models for dynamic inference are unknown, we can consider the problem of learning for dynamic inference. This learning problem can potentially unify several familiar machine learning problems, including supervised learning, imitation learning, and reinforcement learning.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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