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arXiv 0905.3766cs.AI
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关于软约束和条件偏好的推理:复杂性结果和近似技术

Reasoning about soft constraints and conditional preferences: complexity results and approximation techniques

Cornell University(康奈尔大学);University of Padova(帕多瓦大学);University College Cork(科克大学学院)

Carmel Domshlak, Francesca Rossi, Kristen Brent Venable, Toby Walsh

摘要:

许多现实生活中的优化问题包含硬约束和软约束,以及定性条件偏好。然而,没有一个单一的形式主义来规定所有三种信息。因此,我们提出了一个框架,CP网和软约束的基础上,处理硬和软约束以及条件偏好有效和统一。我们研究了测试偏好语句一致性的复杂性,并展示了软约束如何忠实地近似条件偏好语句的语义,同时提高了计算复杂性

英文摘要:

Many real life optimization problems contain both hard and soft constraints, as well as qualitative conditional preferences. However, there is no single formalism to specify all three kinds of information. We therefore propose a framework, based on both CP-nets and soft constraints, that handles both hard and soft constraints as well as conditional preferences efficiently and uniformly. We study the complexity of testing the consistency of preference statements, and show how soft constraints can faithfully approximate the semantics of conditional preference statements whilst improving the computational complexity

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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