论文标题
具有主列表的多维稳定室友
Multidimensional Stable Roommates with Master List
论文作者
论文摘要
自从研究算法和复杂性的早期,稳定匹配的计算是一个核心主题。在经典的环境中,目标是与两个代理商(来自不同的性别”(这是稳定的婚姻)或“不受限制的”(这是稳定的室友)匹配的,Knuth [1976]触发了对三个或多维病例的研究。在这里,我们专注于对多维稳定室友的研究,自1990年代初以来,它已知是NP-HARD。但是,许多NP硬度结果都取决于至少在某些特定应用程序方案中不会发生的非常通用的输入实例。随着寻求确定多维稳定室友的拖延岛的岛屿,我们研究了主列表的案例。在这里,由于在代理商基于“客观”分数表达其偏好的应用中,大概的人认为所有代理偏好均来自“中央主列表”,这意味着单个代理人的偏好应相似。在二维(经典)稳定的匹配案例中,经常研究主列表,但似乎从来没有进行多维案例。这项工作还依赖于参数化算法设计和复杂性分析的方法,在主列表的假设下对多维稳定室友进行了首次系统研究。
Since the early days of research in algorithms and complexity, the computation of stable matchings is a core topic. While in the classic setting the goal is to match up two agents (either from different "gender" (this is Stable Marriage) or "unrestricted" (this is Stable Roommates)), Knuth [1976] triggered the study of three- or multidimensional cases. Here, we focus on the study of Multidimensional Stable Roommates, known to be NP-hard since the early 1990's. Many NP-hardness results, however, rely on very general input instances that do not occur in at least some of the specific application scenarios. With the quest for identifying islands of tractability for Multidimensional Stable Roommates, we study the case of master lists. Here, as natural in applications where agents express their preferences based on "objective" scores, one roughly speaking assumes that all agent preferences are "derived from" a central master list, implying that the individual agent preferences shall be similar. Master lists have been frequently studied in the two-dimensional (classic) stable matching case, but seemingly almost never for the multidimensional case. This work, also relying on methods from parameterized algorithm design and complexity analysis, performs a first systematic study of Multidimensional Stable Roommates under the assumption of master lists.