-
作者：Zbib, Hani; Balcik, Burcu; Rancourt, Marie-Eve; Laporte, Gilbert
作者单位：University of Quebec; University of Quebec Montreal; Universite de Montreal; HEC Montreal; Ozyegin University; Universite de Montreal; University of Bath
摘要：We develop a mutual catastrophe insurance framework for the prepositioning of strategic reserves to foster horizontal collaboration in preparedness against lowprobability high -impact natural disasters. The framework consists of a risk -averse insurer pooling the risks of a portfolio of risk -averse policyholders. It encompasses the operational functions of planning the prepositioning network in preparedness for incoming insurance claims, in the form of units of strategic reserves, setting cov...
-
作者：Epstein, Boris; Ma, Will
作者单位：Columbia University
摘要：Motivated by hiring pipelines, we study three selection and ordering problems in which applicants for a finite set of positions are interviewed or sent offers. There is a finite time budget for interviewing/sending offers, and every interview/offer is followed by a stochastic realization of discovering the applicant's quality or acceptance decision, leading to computationally challenging problems. In the first problem, we study sequential interviewing and show that a computationally tractable,...
-
作者：Sutter, Tobias; Van Parys, Bart P. G.; Kuhn, Daniel
作者单位：University of Konstanz; Massachusetts Institute of Technology (MIT); Swiss Federal Institutes of Technology Domain; Ecole Polytechnique Federale de Lausanne
摘要：We propose a statistically optimal approach to construct data-driven decisions for stochastic optimization problems. Fundamentally, a data-driven decision is simply a function that maps the available training data to a feasible action. It can always be expressed as the minimizer of a surrogate optimization model constructed from the data. The quality of a data-driven decision is measured by its out-of-sample risk. An additional quality measure is its out-of-sample disappointment, which we defi...
-
作者：Ata, Baris; Tongarlak, Mustafa H.; Lee, Deishin; Field, Joy
作者单位：University of Chicago; Bogazici University; Western University (University of Western Ontario); Boston College
摘要：Nonprofit organizations that provide food, shelter, and other services to people in need, rely on volunteers to deliver their services. Unlike paid labor, nonprofit organizations have less control over unpaid volunteers' schedules, efforts, and reliability. However, these organizations can invest in volunteer engagement activities to ensure a steady and adequate supply of volunteer labor. We study a key operational question of how a nonprofit organization can manage its volunteer workforce cap...
-
作者：Light, Bar; Johari, Ramesh; Weintraub, Gabriel
作者单位：Tel Aviv University; Stanford University; Stanford University
摘要：Online platforms collect rich information about participants and then share some of this information back with them to improve market outcomes. In this paper, we study the following information disclosure problem in two-sided markets: if a platform wants to maximize revenue, which sellers should the platform allow to participate, and how much of its available information about participating sellers' quality should the platform share with buyers? We study this information disclosure problem in ...
-
作者：Bhandari, Jalaj; Russo, Daniel
作者单位：Columbia University; Columbia University
摘要：Policy gradients methods apply to complex, poorly understood, control problems by performing stochastic gradient descent over a parameterized class of polices. Unfortunately, even for simple control problems solvable by standard dynamic programming techniques, policy gradient algorithms face nonconvex optimization problems and are widely understood to converge only to a stationary point. This work identifies structural properties, shared by several classic control problems, that ensure the pol...
-
作者：Chen, Yiwei; Jasin, Stefanus
作者单位：Pennsylvania Commonwealth System of Higher Education (PCSHE); Temple University; University of Michigan System; University of Michigan
摘要：We consider a canonical revenue management problem wherein a monopolist seller seeks to maximize expected total revenues from selling a fixed inventory of a product to customers who arrive sequentially over time, and the seller is restricted to implement a pricing policy that is monotonic (either nonincreasing or nondecreasing) over time. Gallego and Van Ryzin [Gallego G, Van Ryzin G (1994) Optimal dynamic pricing of inventories with stochastic demand over finite horizons. Management Sci. 40(8...
-
作者：Guo, Shaoyan; Xu, Huifu; Zhang, Sainan
作者单位：Dalian University of Technology; Chinese University of Hong Kong
摘要：Utility preference robust optimization (PRO) models have recently been proposed to deal with decision-making problems where the decision-maker's true utility function is unknown and the optimal decision is based on the worst-case utility function in an ambiguity set of utility functions. In this paper, we consider the case where the ambiguity set is constructed using some moment-type conditions. We propose piecewise linear approximation of the utility functions in the ambiguity set. The approx...
-
作者：Chen, Li; He, Long; Zhou, Yangfang (Helen)
作者单位：National University of Singapore; University of Sydney; George Washington University; Singapore Management University
摘要：To support the rapid growth in global electric vehicle adoption, public charging of electric vehicles is crucial. We study the problem of an electric vehicle charging service provider, which faces (1) stochastic arrival of customers with distinctive arrival/departure times and energy requirements and (2) a total electricity cost including demand charges, which are costs related to the highest per-period electricity used in a finite horizon. We formulate its problem of scheduling vehicle chargi...
-
作者：Feinstein, Zachary; Rudloff, Birgit
作者单位：Stevens Institute of Technology; Vienna University of Economics & Business
摘要：Nash equilibria and Pareto optimality are two distinct concepts when dealing with multiple criteria. It is well known that the two concepts do not coincide. However, this work, we show that it is possible to characterize the set of all Nash equilibria for any noncooperative game as the Pareto-optimal solutions of a certain vector optimization problem. To accomplish this task, we increase the dimensionality of the objective function and formulate a nonconvex ordering cone under which Nash equil...
