Search Results - "Ward, Amy"
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Predicting product return volume using machine learning methods
Published in European journal of operational research (16-03-2020)“…•We develop data-driven models for predicting return volume at a granular level.•Least Absolute Shrinkage and Selection Operator achieves a consistent…”
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Pricing and Capacity Sizing of a Service Facility: Customer Abandonment Effects
Published in Production and operations management (01-08-2019)“…This paper studies the effect of customer abandonment in the economic optimization of a service facility. Specifically, we consider how to jointly set the…”
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Stepping Into the Future of Behavioral Health: Opportunities, Challenges, and Possibilities
Published in American journal of orthopsychiatry (2024)“…To improve our practices of today and to overcome the problems that confront us at present, the behavioral health field must anticipate what the future is…”
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Routing and Staffing When Servers Are Strategic
Published in Operations research (01-07-2016)“…Traditionally, research focusing on the design of routing and staffing policies for service systems has modeled servers as having fixed (possibly…”
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Blind Fair Routing in Large-Scale Service Systems with Heterogeneous Customers and Servers
Published in Operations research (01-01-2013)“…In a call center, arriving customers must be routed to available servers, and servers that have just become available must be scheduled to help waiting…”
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Fair Dynamic Routing in Large-Scale Heterogeneous-Server Systems
Published in Operations research (01-05-2010)“…In a call center, there is a natural trade-off between minimizing customer wait time and fairly dividing the workload among agents of different skill levels…”
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A fluid approximation for a matching model with general reneging distributions
Published in Queueing systems (01-04-2024)“…Motivated by a service platform, we study a two-sided network where heterogeneous demand (customers) and heterogeneous supply (workers) arrive randomly over…”
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Self-regulated learning in a competency-based and flipped learning environment: learning strategies across achievement levels and years
Published in Medical education online (01-01-2020)“…Background: The transition from a traditional lecture-based curriculum to a competency-based curriculum poses significant challenges to both students and…”
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A queueing model with independent arrivals, and its fluid and diffusion limits
Published in Queueing systems (01-06-2015)“…We study a queueing model with ordered arrivals, which can be called the Δ ( i ) / G I / 1 queue. Here, customers from a fixed, finite, population…”
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Scoping review on Physical Health Conditions in Irish Travellers (Mincéiri)
Published in BMJ open (28-08-2023)“…The objective of this scoping review was to collate physical health conditions in Mincéiri-Irish Travellers. Scoping review. MEDLINE/PubMed, EMBASE, PEDro,…”
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Gypsy, Roma and Traveller populations and mental health in the UK: a need for real working together and co-production of services
Published in BJPsych International (01-08-2024)“…Gypsy, Roma and Traveller (GRT) communities have considerably worse mental health outcomes than the general population and many other ethnic minority groups…”
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Staffing Call Centers with Uncertain Arrival Rates and Co-sourcing
Published in Production and operations management (01-07-2015)“…In a call center, staffing decisions must be made before the call arrival rate is known with certainty. Once the arrival rate becomes known, the call center…”
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Clinical, microbiologic, and immunologic determinants of mortality in hospitalized patients with HIV-associated tuberculosis: A prospective cohort study
Published in PLoS medicine (05-07-2019)“…In high-burden settings, case fatality rates are reported to be between 11% and 32% in hospitalized patients with HIV-associated tuberculosis, yet the…”
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Mycobacterium tuberculosis bloodstream infection prevalence, diagnosis, and mortality risk in seriously ill adults with HIV: a systematic review and meta-analysis of individual patient data
Published in The Lancet infectious diseases (01-06-2020)“…The clinical and epidemiological significance of HIV-associated Mycobacterium tuberculosis bloodstream infection (BSI) is incompletely understood. We…”
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Restoration of a paraventricular thalamo-accumbal behavioral suppression circuit prevents reinstatement of heroin seeking
Published in Neuron (Cambridge, Mass.) (06-03-2024)“…Lack of behavioral suppression typifies substance use disorders, yet the neural circuit underpinnings of drug-induced behavioral disinhibition remain unclear…”
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Twice-Yearly Lenacapavir or Daily F/TAF for HIV Prevention in Cisgender Women
Published in The New England journal of medicine (03-10-2024)“…In this randomized, controlled trial involving women in South Africa and Uganda, twice-yearly subcutaneous lenacapavir was superior to daily oral…”
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Stationary distribution convergence of the offered waiting processes in heavy traffic under general patience time scaling
Published in Queueing systems (01-12-2021)“…We study a sequence of single server queues with customer abandonment ( G I / G I / 1 + G I ) under heavy traffic. The patience time distributions vary with…”
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Dynamic Scheduling of a Two-Server Parallel Server System with Complete Resource Pooling and Reneging in Heavy Traffic: Asymptotic Optimality of a Two-Threshold Policy
Published in Mathematics of operations research (01-11-2013)“…We consider a dynamic control problem for a parallel server system commonly known as the N -system. An N -system is a two-server parallel server system with…”
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Special issue: In honour of Ward Whitt reaching 75
Published in Queueing systems (01-06-2018)Get full text
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Dynamic scheduling of a GI/GI/1+GI queue with multiple customer classes
Published in Queueing systems (01-11-2013)“…We consider a dynamic control problem for a GI / GI /1+ GI queue with multiclass customers. The customer classes are distinguished by their interarrival time,…”
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