Moran Feldman, Ola Svensson, Rico Zenklusen

نتاج البحث: نشر في مجلةمقالةمراجعة النظراء


The secretary problem became one of the most prominent online selection problems due to its numerous applications in online mechanism design. The task is to select a maximum weight subset of elements subject to given constraints, where elements arrive one-by-one in random order, revealing a weight upon arrival. The decision whether to select an element has to be taken immediately after its arrival. The different applications that map to the secretary problem ask for different constraint families to be handled. The most prominent ones are matroid constraints, which both capture many relevant settings and admit strongly competitive secretary algorithms. However, dealing with more involved constraints proved to be much more difficult, and strong algorithms are known only for a few specific settings. In this paper, we present a general framework for dealing with the secretary problem over the intersection of several matroids. This framework allows us to combine and exploit the large set of matroid secretary algorithms known in the literature. As one consequence, we get constant-competitive secretary algorithms over the intersection of any constant number of matroids whose corresponding (single-)matroid secretary problems are currently known to have a constant-competitive algorithm. Moreover, we show that our results extend to submodular objectives.

اللغة الأصليةالإنجليزيّة
رقم المقال3
الصفحات (من إلى)766-819
عدد الصفحات54
دوريةSIAM Journal on Computing
مستوى الصوت51
رقم الإصدار3
المعرِّفات الرقمية للأشياء
حالة النشرنُشِر - 2022

ملاحظة ببليوغرافية

Publisher Copyright:
© 2022 Moran Feldman, Ola Svensson, and Rico Zenklusen.


أدرس بدقة موضوعات البحث “A FRAMEWORK FOR THE SECRETARY PROBLEM ON THE INTERSECTION OF MATROIDS'. فهما يشكلان معًا بصمة فريدة.

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