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arXiv 2103.08155cs.AI
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S $^*$:一种基于启发式信息的多目标路径近似求解框架

S$^*$: A Heuristic Information-Based Approximation Framework for Multi-Goal Path Finding

Texas A & M University(德克萨斯A&M大学);Carnegie Mellon University(卡内基梅隆大学)

Kenny Chour, Sivakumar Rathinam, Ramamoorthi Ravi

摘要:

我们结合单向和双向启发式搜索的思想,和旅行商问题的近似算法,开发一个新的框架,多目标路径查找(MGPF)问题,提供了2-近似保证。MGPF的目的是找到一个最低成本的路径从一个原点到一个目的地,这样在一个给定的一组目标中的每个节点被访问至少一次沿path. We目前的数值结果来说明我们的框架的优势,在传统的替代品的扩展节点的数量和运行时间。

英文摘要:

We combine ideas from uni-directional and bi-directional heuristic search, and approximation algorithms for the Traveling Salesman Problem, to develop a novel framework for a Multi-Goal Path Finding (MGPF) problem that provides a 2-approximation guarantee. MGPF aims to find a least-cost path from an origin to a destination such that each node in a given set of goals is visited at least once along the path. We present numerical results to illustrate the advantages of our framework over conventional alternates in terms of the number of expanded nodes and run time.

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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