Reasoning about Optimal Collections of Solutions

Reasoning about Optimal Collections of Solutions
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关于最优解集合的推理

DOI:
10.1007/978-3-642-04244-7_34
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发表时间:
2009
期刊:
ArXiv
影响因子:
--
通讯作者:
B. O’Sullivan
B. O’Sullivan
中科院分区:
--
文献类型:
--
作者:
T. Hadzic;A. Holland;B. O’Sullivan

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在许多应用设置中存在找到组合问题的解的集合的问题,该组合问题在解间目标函数方面是最优的。例如,期望在产品配置设置中的一组解决方案之间最大化多样性,以便向客户提供广泛的不同选项。考虑到这些多解查询在计算上具有挑战性的性质,现有的算法方法要么应用算法学,要么应用组合搜索,这不能扩展到大的解空间。然而,在许多领域中,将原始问题编译成紧凑的表示可以支持计算效率高的查询应答。在本文中,我们提出了一种新的方法来找到最佳的解决方案的集合时,问题被编译成一个多值决策图。我们的经验表明,对于现实世界的配置问题,我们的方法的精确和近似版本是有效的,并能够显着优于最先进的基于搜索的技术。
The problem of finding a collection of solutions to a combinatorial problem that is optimal in terms of an inter-solution objective function exists in many application settings. For example, maximizing diversity amongst a set of solutions in a product configuration setting is desirable so that a wide range of different options is offered to a customer. Given the computationally challenging nature of these multi-solution queries, existing algorithmic approaches either apply heuristics or combinatorial search, which does not scale to large solution spaces. However, in many domains compiling the original problem into a compact representation can support computationally efficient query answering. In this paper we present a new approach to find optimal collections of solutions when the problem is compiled into a multi-valued decision diagram. We demonstrate empirically that for real-world configuration problems, both exact and approximate versions of our methods are effective and are capable of significantly outperforming state-of-the-art search-based techniques.
基于案例的推理研究与开发
DOI: 10.1007/978-3-642-39056-2_11
发表时间: 2013
期刊: --
影响因子: --
作者:
Horsburgh B
通讯作者: Horsburgh B