arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1302.6836cs.AI
收藏

不确定环境下的鲁棒规划

Robust Planning in Uncertain Environments

Science Applications International Corporation(科学应用国际公司);Adroit Systems, Inc.(Adroit系统公司)

Stephen G. Pimentel, Lawrence M. Brem

摘要:

本文描述了一种新颖的规划方法,该方法利用决策理论大大提高了不确定环境中的鲁棒性。我们提出了一种计算最大期望效用的条件计划的算法。该算法将搜索空间表示为AND/OR树,并采用深度限制来控制计算成本。一个数值鲁棒性因子,参数化的效用函数,允许用户调整的程度,规避风险的计划。通过前瞻搜索,规划算法试图找到一个最优的计划,使用期望效用作为其优化标准。我们目前的实验结果,通过应用我们的算法的块世界域的非确定性扩展。我们的研究结果表明,鲁棒性因素支配的程度,体现在我们的算法计算的条件计划的风险。

英文摘要:

This paper describes a novel approach to planning which takes advantage of decision theory to greatly improve robustness in an uncertain environment. We present an algorithm which computes conditional plans of maximum expected utility. This algorithm relies on a representation of the search space as an AND/OR tree and employs a depth-limit to control computation costs. A numeric robustness factor, which parameterizes the utility function, allows the user to modulate the degree of risk-aversion employed by the planner. Via a look-ahead search, the planning algorithm seeks to find an optimal plan using expected utility as its optimization criterion. We present experimental results obtained by applying our algorithm to a non-deterministic extension of the blocks world domain. Our results demonstrate that the robustness factor governs the degree of risk embodied in the conditional plans computed by our algorithm.

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。

↑