Jan Albert Van Mieghem

Jan Albert Van Mieghem
Northwestern University | NU · Department of Managerial Economics, Decision Sciences and Operations

PhD, Stanford University

About

146
Publications
73,272
Reads
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4,441
Citations
Additional affiliations
January 2002 - present
Northwestern University Chicago
Position
  • Harold Stuart Professor
January 2001 - August 2016
Northwestern University
Position
  • Harold L. Stuart Professor
September 1995 - present
Northwestern University
Position
  • Harold L. Stuart Professor
Education
September 1991 - April 1995
Stanford University
Field of study
  • Business (Operations, Information and Technology)
September 1989 - December 1990
Stanford University
Field of study
  • EE
September 1984 - July 1989
KU Leuven
Field of study
  • Applied Science & Electrical Engineering

Publications

Publications (146)
Preprint
Full-text available
Traditional queuing theory assumes types are known or perfectly observed, and each type is typically put in its type-specific queue which is prioritized using some version of the celebrated c-mu rule; we call this type-based queueing. We study feature-based priority queuing where types are not perfectly observed but are inferred from observed featu...
Article
We investigate how volume flexibility, defined by a sourcing cost premium beyond a base capacity, at a local responsive supplier impacts the decision to reshore supply. The buyer also has access to a remote supplier that is cheaper with no restrictions on volume flexibility. We show that with unit lead time difference between both suppliers, the op...
Article
Full-text available
Problem definition: Is deep reinforcement learning (DRL) effective at solving inventory problems? Academic/practical relevance: Given that DRL has successfully been applied in computer games and robotics, supply chain researchers and companies are interested in its potential in inventory management. We provide a rigorous performance evaluation of D...
Article
Conventional optimization algorithms that prescribe order packing instructions (which items to pack in which sequence in which box) focus on box volume utilization yet tend to overlook human behavioral deviations. We observe that packing workers at the warehouses of the Alibaba Group deviate from algorithmic prescriptions for 5.8% of packages, and...
Article
Problem definition: We study dynamic stochastic appointment scheduling when delaying appointments increases the risk of incurring costly failures, such as readmissions in healthcare or engine failures in preventative maintenance. When near-term base appointment capacity is full, the scheduler faces a trade-off between delaying an appointment at the...
Article
Full-text available
We review academic research on dual-sourcing (or dual-mode) dynamic stochastic inventory models, which study the replenishment of inventory from two sources (or two transportation modes) in the presence of demand uncertainty. The classic assumption, also adopted here, is that the two sources (modes) differ by replenishment lead times and costs. We...
Article
Full-text available
We investigate near-shoring a small part of the global production to local SpeedFactories that serve only the variable demand. The short lead time of the responsive SpeedFactory reduces the risk of making large volumes in advance, yet it does not involve a complete reshoring of demand. Using a break-even analysis, we investigate the lead time, dema...
Chapter
Full-text available
The financial services industry covers banks, insurance companies and investment managers, as well as transaction or message processing companies. To streamline billions of daily transactions, lean principles and operational excellence programs have found their way to financial service firms. Today, the resulting cost and risk reductions are furthe...
Preprint
Full-text available
(1) Problem definition: Using patient-level data from 72 MRI hospitals in Ontario, Canada from 2013 to 2017, we find that over 60% of patients exceeded their wait time targets. We conduct a data-driven analysis to quantify the reduction in the Fraction Exceeding Target (FET) for MRI services through geographic resource sharing while controlling for...
Article
John Dong, the founder and CEO of Kaffee Kostuum developed the idea of Kaffee Kostuum in his own MBA capstone project five years ago. Shortly after graduation, he received seed money from business angels, as well as a favorable bank loan. His value proposition was clear from the beginning: “Be a provider of an unlimited variety of affordable suits,...
Article
Process improvement begins with the process view: understanding patient care from the patient's point of view. Organizations must also clearly articulate for themselves how they define operational excellence so that the tradeoffs taken in process improvement can be clearly made. Constructing a process map allows application of powerful analytical t...
Conference Paper
Full-text available
We study a global dual sourcing supply chain setting under correlated auto-regressive, AR(1), demand. We consider three cases: a) off-shoring all demand to a global supplier with a long lead time, b) near-shoring all demand to a local factory with unit lead times or c) dual sourcing where a proportion of demand is satisfied from the global supplier...
Conference Paper
Full-text available
We investigate dual-source supply chains, where fast sourcing is not only more expensive than slow sourcing, it is also less flexible. The slow supplier has a longer lead time, but has full flexibility with sourcing costs linear to the ordered volumes. The fast supplier is more expensive, and also charges an overtime premium per unit sourced beyond...
Article
Full-text available
The digital economy is transforming the way we work. We provide a framework for organizations to assess their digital operations and to provide direction where to go. The framework’s premise is that digitization enables automated and/or smart execution of workflows. Evaluating the level and reach of these three pillars--digitization, automation, an...
Article
Full-text available
(1) Problem De�nition: How to dynamically replenish inventory from two supply sources or shipping modes with general lead times. The fast source is more expensive than the slow source. (2) Academic/Practical Relevance: Dual sourcing provides supply chain exibility to mitigate demand and supply risk. Despite its relevance in practice, characterizin...
Article
Full-text available
The popularity of reinforcement learning is growing but is it effective in operations? We provide proof of concept that deep reinforcement learning (DRL) can be applied as a general-purpose technology to three classic, yet intractable inventory replenishment problems. Step-by-step guidance on how to apply DRL to a real data set is proffered togethe...
Preprint
Full-text available
We investigate the emerging trend of near-shoring a small part of the global production to local \emph{SpeedFactories}. The short lead time of the responsive SpeedFactory reduces the risk of making large volumes in advance, yet it does not involve a complete re-shoring of demand. Using a break-even analysis we investigate the lead time, demand, and...
Article
Objective To compare attending emergency physician (EP) time spent on direct and indirect patient care activities in emergency departments (ED) with, and without, emergency medicine (EM) residents. Methods We performed an observational, time‐motion study on 25 EPs who worked in a community‐academic ED and a non‐academic community ED. Two observati...
Article
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We present a reproducible, objective review of research trends using text mining and citations of papers published in M&SOM during its first 20 years whose abstracts or keywords contain capacity or inventory. The review is followed by our subjective projections on future research opportunities.
Article
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when to preempt individual tasks to switch to collaborative tasks. Discretionary task switching can introduce changeover times when resuming the preempted task and thus can increase total processing time. We analyze and quantify how collaboration, through interruptions and discretionary changeovers, affects total processing time. We introduce an ep...
Article
In this case, students assume the roles of FK Day and Dave Neiswander, leaders of the social enterprise World Bicycle Relief (WBR), which donates and sells bicycles in sub-Saharan Africa. As a social enterprise, WBR combines not-for-profit and for-profit activities. Starting as a traditional not-for-profit organization formed to donate bicycles aft...
Conference Paper
Full-text available
We investigate how data-analyst productivity benefits from collaborative platforms that facilitate learning-by-doing (i.e. analysts learning by writing queries on their own) and learning-by-viewing (i.e. analysts learning by viewing queries written by peers). Learning is measured using a behavioral (productivity-improvement) approach. Productivity...
Preprint
Full-text available
About 43 million US domestic flights operated on routes that were serviced consistently by the same airlines from 1997 to 2017. The scheduled duration of these flights, as posted on computerized reservation systems, increased on average by 8.1% over the 21-year span. Where did the time go? Building on Deshpande and Arıkan (2012), we develop a multi...
Research
Full-text available
Collaboration is important in services, but may lead to interruptions. Professionals exercise discretion on when to preempt individual tasks to switch to collaborative tasks. Discretionary task switching can introduce changeover times when resuming the preempted task and thus can increase total processing time. We analyze and quantify how collabor...
Article
Full-text available
Product platforms are assets that are shared by multiple products. We study the optimal investment in platform flexibility. Each platform type is characterized by its functionality that determines its R&D investment and unit production cost, as well as the customization cost to produce the end products from the platform. The firm can invest in a po...
Article
Full-text available
We investigate the emerging trend of near-shoring a small part of the global production back to local SpeedFactories. The short lead time of the responsive SpeedFactory reduces the risk of making large volumes in advance, yet it does not involve a complete re-shoring of demand. Using a breakeven analysis we investigate the lead time, demand, and co...
Article
Full-text available
We present an approach to forecast customer orders of ready-to-launch new products that are similar to past products. The approach fits product life cycle (PLC) curves to historical customer order data, clusters the curves of similar products, and uses the representative curve of the new product’s cluster to generate its forecast. We propose three...
Article
Full-text available
Product platforms are assets that are shared by multiple products. We study the optimal investment in platform flexibility when higher upfront R&D investment results in higher platform functionality and lower customization costs during production. The firm can invest in a portfolio of specialized platforms that align with the functionalities of a s...
Article
Global Connect, a major telecommunications service provider, partners with national cable providers to bundle media and telecom services offered through voice over Internet protocol (VoIP). Global Connect provides the VoIP physical infrastructure that enables cable providers to offer VoIP phone service to their end customers. VoIP cable services ar...
Article
HP sells configure-to-order products. With millions of part combinations going into an order, the challenge is deciding which parts to keep in the portfolio to balance costs with revenues. The case explains how one would approach this problem before product introduction, but focuses on managing the existing portfolio. Students will develop a system...
Article
Full-text available
Motivated by the trend towards more collaboration in team work, we study networks where some tasks require the simultaneous processing by multiple types of multitasking human or indivisible resources. The capacity of such networks is generally smaller than the bottleneck capacity. In Gurvich and Van Mieghem (2015) we proved that both capacities are...
Article
Full-text available
This paper studies how service providers can design social interaction among participants and quantify the causal impact of that interaction on service quality. We focus on education and analyze whether encouraging social interaction among students improves learning outcomes in Massive Open Online Courses (MOOCs), which are a new service delivery c...
Article
Background: Multidisciplinary transitional care teams represent a model for reducing heart failure readmissions. Within this context, early identification of patients hospitalized with acute decompensated heart failure (ADHF) permits meaningful transitional care plan development. Improving the efficiency of early identification of the higher risk A...
Article
Background: Heart failure (HF) readmissions remain a major driver of cost and health care utilization. Timely follow-up of patients post-discharge represents an evidence-based intervention proven to reduce readmission rates. A previously unexplored characteristic of hospital discharges is variability in discharge caseload. This variability thwarts...
Article
Background: Multidisciplinary, collaborative care improves outcomes and reduces costs but may unintentionally increase the operational overhead to manage the complexity of increasingly sophisticated teamwork. Objective: To quantify complexity of a standardized discharge planning process by closely examining team continuity, composition, and experie...
Article
Full-text available
The Hospital Readmissions Reduction Program (HRRP), a part of the US Patient Protection and Affordable Care Act, requires the Centers for Medicare and Medicaid Services (CMS) to penalize hospitals with excess readmissions. We take an economic and operational (patient flow) perspective to analyze the effectiveness of this policy in encouraging hospi...