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作者：Liu, Nan; Wan, Guohua; Wang, Shan
作者单位：Boston College; Shanghai Jiao Tong University; Sun Yat Sen University
摘要：Problem definition: Multistage service is common in healthcare. One widely adopted approach to manage patient visits in multistage service is to provide patients with visit itineraries that specify personalized appointment time for each patient at each service stage. We study how to design such visit itineraries. Methodology/results: We develop the first optimization modeling framework to provide each patient with a personalized visit itinerary in a tandem (healthcare) service system. Due to i...
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作者：Wang, Yimin; Li, Mei; Ma, Ning; Zhang, Heng
作者单位：Arizona State University; Arizona State University-Tempe; University of Oklahoma System; University of Oklahoma - Norman
摘要：Problem definition: Product service plays a crucial role for brands to retain customers and spur revenue growth. It is, however, often outsourced to a third -party provider, driven by cost savings and the ability to focus on core businesses. Although there is a large body of literature studying service outsourcing, the impact of service environment uncertainty (i.e., changing customer needs and shifting resource requirements) has received sparse attention in the past but is becoming a major co...
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作者：Chakraborty, Sunandan; Jagabathula, Srikanth; Subramanian, Lakshminarayanan; Venkataraman, Ashwin
作者单位：Indiana University System; Indiana University Indianapolis; New York University; New York University; University of Texas System; University of Texas Dallas
摘要：Problem definition: Commodity prices have exhibited significant volatility in recent times, which poses an exogenous risk factor for commodity -processing and commodity -trading firms. Accurate commodity price forecasts can help firms leverage data -driven procurement policies that incorporate the underlying price volatility for financial and operational hedging decisions. However, historical prices alone are insufficient to obtain reasonable forecasts because of the extreme volatility. Method...
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作者：Karimi, Amir; Mishra, Anant; Natarajan, Karthik, V; Sinha, Kingshuk K.
作者单位：University of Texas System; University of Texas at San Antonio; University of Minnesota System; University of Minnesota Twin Cities
摘要：Problem definition: Improving access to contraceptives is one of the most effective interventions to prevent unintended pregnancies and save the lives of women in least developed countries (LDCs), where the overwhelming majority of maternal deaths occur. However, access to reproductive health commodities is often limited in LDCs because of frequent stock -outs at last -mile health facilities. In this study, we evaluate and compare the effect of two distribution models on last -mile contracepti...
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作者：Farias, Vivek F.; Li, Andrew A.; Peng, Tianyi
作者单位：Massachusetts Institute of Technology (MIT); Carnegie Mellon University; Massachusetts Institute of Technology (MIT)
摘要：Problem definition: Inaccurate records of inventory occur frequently and, by some measures, cost retailers approximately 4% in annual sales. Detecting inventory inaccuracies manually is cost -prohibitive, and existing algorithmic solutions rely almost exclusively on learning from longitudinal data, which is insufficient in the dynamic environment induced by modern retail operations. Instead, we propose a solution based on cross-sectional data over stores and stock -keeping units (SKUs), viewin...
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作者：Lin, Yunduan; Wang, Mengxin; Zhang, Heng; Zhang, Renyu; Shen, Zuo-Jun Max
作者单位：University of California System; University of California Berkeley; University of Texas System; University of Texas Dallas; Arizona State University; Arizona State University-Tempe; Chinese University of Hong Kong; University of Hong Kong; University of Hong Kong
摘要：Problem definition: Content promotion policies are crucial for online content forms to improve content consumption and user engagement. However, traditional promotion policies generally neglect the diffusion effect within a crowd of users. In this paper, study the candidate generation and promotion optimization (CGPO) problem for an online content platform, emphasizing the incorporation of the diffusion effect. Methodology/results: We propose a diffusion model that incorporates platform promot...
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作者：Miedaner, F.; Kuntz, L.; Eilermann, K.; Roth, B.; Scholtes, S.
作者单位：University of Cologne; University of Cologne; University of Cologne; University of Cambridge
摘要：Problem definition: We examine the effects of prolonged consecutive working days without breaks on care quality and explore its association with daily staffing levels in neonatal intensive care nursing teams. Academic/practical relevance: Healthcare organizations typically base staffing guidelines on safe daily metrics like nurse -to -patient ratios. However, in response to unforeseen demand spikes or staff shortages, managers often depend on staff working additional consecutive days to bridge...
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作者：Mak, Ho-Yin; Tang, Runyu
作者单位：Georgetown University; Xi'an Jiaotong University
摘要：Problem definition: We study the operations of electric vehicles (EVs) providing frequency regulation services to the electric grid in vehicle -to -grid (V2G) systems. In particular, individually owned EVs collaboratively bid in the regulation market, coordinated by a platform that operates the network of charging equipment. We study how the platform determines optimal pricing incentives for drivers to plug in their EVs, accounting for heterogeneous driving schedules. Methodology/results: We m...
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作者：Schmidt, Adam P.; Buell, Duncan; Albert, Laura A.
作者单位：University of Wisconsin System; University of Wisconsin Madison; University of South Carolina System; University of South Carolina Columbia
摘要：Problem definition: Many logistical and financial challenges of facilitating an election lead election officials to consolidate polling locations. However, determining when it is appropriate to consolidate polling locations and how to consolidate polling locations, if necessary, is a difficult and high -stakes decision that influences voter participation. Methodology/results: We formalize the set of constraints and criteria that election officials should follow as the polling location consolid...
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作者：Levi, Retsef; Rajan, Manoj; Singhvi, Somya; Zheng, Yanchong
作者单位：University of Southern California; Massachusetts Institute of Technology (MIT)
摘要：Problem definition: To improve the welfare of smallholder farmers, multiple countries (e.g., Ethiopia and India) have launched online agri-platforms to transform traditional markets. However, there is still mixed evidence regarding the impact of these platforms and, more generally, how they can be leveraged to enable more efficient agricultural supply chains and markets. This paper describes work conducted in close collaboration with the state government of Karnataka, India, to design, impleme...
