Rotman School of Management, University of Toronto

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Vahid Roshanaei

Vahid Roshanaei

Assistant Professor, Teaching Stream, Operations Management & Statistics Area

Degrees:

Ph.D., University of Toronto

Bio

My research revolves around the development of exact techniques for large-scale deterministic, stochastic, and robust combinatorial optimization problems. Most applications I gravitate toward arise in healthcare operations and network design. My research has gained national recognition and received Honourable Mentions from the Canadian Operational Research Society's best paper and presentation competitions. I have been a recipient of the NSERC Alexander Graham Bell Canada Doctoral Scholarships and the NSERC Post-Doctoral Fellowship. I teach Operations Management and Supply Chain Management to Commerce and MBA students at the Rotman School of Management.

Academic Positions

  • 2020

    Assistant Professor, Teaching Stream, Rotman School of Management, University of Toronto

  • 2017-2020

    Post-Doctoral Fellow & Instructor, University of Toronto, Rotman School of Management

Non-Academic Positions

  • 2013-2017

    Researcher, Toronto General Hospital Research Institute

  • 2010-2012

    Researcher, Intelligent Manufacturing Systems Centre (IMSC)

Selected Publications - Papers

  • Data-driven multi-specialty wait list management under uncertainty: Optimal resource allocation, patient cancellation, and operating room overbooking

    Bahman Naderi, Amir Ardestani-Jaafari, Vahid Roshanaei

    Work-in-progress

    2021

  • Mixed-integer programming versus constraint programming on scheduling problems: New results and outlook

    Bahman Naderi, Ruben Ruiz, Vahid Roshanaei

    Under review

  • Exact decomposition methods for joint project selection and scheduling

    Bahman Naderi, Vahid Roshanaei

    Work-in-progress

  • An almost robust approach for home healthcare network design

    Opher Baron, Oded Berman, Andre A. Cire, Vahid Roshanaei

    To be submitted soon

    2021

  • Home healthcare planning and scheduling with synchronization under uncertainty: Models, relaxations, and exact methods

    Bahman Naderi, Vahid Roshanaei, Mehmet Begen, Greg Zaric

    Under review

  • Robust multi-period pattern-based home healthcare planning and scheduling: Models, decompositions, and a novel branching algorithm

    Bahman Naderi, Mehmet Begen, Greg Zaric, Vahid Roshanaei

    Major revision in INFORMS Journal on Computing

  • Solving Integrated Operating Room Planning and Scheduling: Logic-based Benders decomposition verus Branch-Price-and-Cut

    Vahid Roshanaei, Bahman Naderi

    Accepted for Publication in European Journal of Operational Research

  • Critical-path-based logic-based Benders decomposition approach for flexible job shop scheduling

    Bahman Naderi, Vahid Roshanaei

    Major revision in INFORMS Journal on Optimization

  • Increased Surgical Capacity without Additional Resources: A Generalized Operating Room Planning and Scheduling Approach

    Bahman Naderi, Vahid Roshanaei, Mehmet Begen, Dionne Aleman, David Urbach

    Minor revision in Production and Operations Management

    2021

  • Solving the type-2 assembly line balancing with setups using logic-based Benders decomposition

    Hassan Zohali, Bahman Naderi, Vahid Roshanaei

    Accepted for Publication in INFORMS Journal on Computing

    2021

  • Branch-and-check methods for multi-level operating room planning and scheduling

    Vahid Roshanaei, Kyle E. C. Booth, Dionne Aleman, David Urbach, J. Christopher Beck

    International Journal of Production Economics

    Issue:220

    2020

    Pages: 107433

  • Reformulation, linearization, and decomposition techniques for balanced distributed operating room scheduling

    Vahid Roshanaei, Curtiss Luong, Dionne Aleman, David Urbach

    OMEGA

    Issue:93

    2020

    Pages: 102043

  • Branch-Relax-and-Check: A tractable decomposition method for order acceptance and identical parallel machine scheduling

    Bahman Naderi, Vahid Roshanaei

    European Journal of Operational Research

    Issue:3 (286)

    2020

    Pages: 811-827

  • Reformulation, linearization, and a hybrid iterated local search algorithm for economic lot-sizing and sequencing in hybrid flow shop problems

    Hassan Zohali, Bahman Naderi, Mohammad Mohammadi, Vahid Roshanaei

    Computers & Operations Research

    Issue:104

    2019

    Pages: 127-138

  • Almost robust discrete optimization

    Opher Baron, Oded Berman, Mohammad M. Fazel-Zarandi, Vahid Roshanaei

    European Journal of Operational Research

    Issue:276(2)

    2019

    Pages: 451-465

  • Propagating logic-based Benders’ decomposition approaches for distributed operating room scheduling

    Vahid Roshanaei, Curtiss Luong, Dionne Aleman, David Urbach

    European Journal of Operational Research

    Issue:257 (2)

    2017

    Pages: 2017

  • Collaborative operating room planning and scheduling

    Vahid Roshanaei, Curtiss Luong, Dionne Aleman, David Urbach

    INFORMS Journal on Computing

    Issue:29 (3)

    2017

    Pages: 558-580

  • A discrete event simulation evaluation of distributed operating room scheduling

    Shuo Wang, Vahid Roshanaei, Dionne Aleman, David Urbach

    IIE Transactions on Healthcare Systems Engineering

    Issue: 6 (4)

    2016

    Pages: 236-245

  • Mathematical modelling and a meta-heuristic for flexible job shop scheduling

    Vahid Roshanaei, Ahmed Azab, Hoda ElMaraghy

    International Journal of Production Research

    Issue:51(20)

    2013

    Pages: 7247-6274

  • A hybrid multi-stage predictive model for supply chain network collapse recovery analysis: a practical framework for effective supply chain network continuity management

    Behnam Vahdani, Mostafa Zandieh, Vahid Roshanaei

    International Journal of Production Research

    Issue:49(7)

    2011

    Pages: 2035-2060

Selected Publications - Case

  • Buffer or suffer: Optimal ventilator stockpile level for next flu-related pandemic—lessons learned from COVID-19 pandemic

    Sajjad Najafi, Vahid Roshanaei

    Work-in-progress

  • Managing increased demand for ICU beds during the COVID-19 pandemic for the City of Toronto

    Vahid Roshanaei, Opher Baron

    Work-in-progress

Research and Teaching Interests

I conduct research in large-scale combinatorial optimization, decision-making under uncertainty, and operations analytics. I have a genuine interest in teaching operations management, supply chain management, management science, and analytics to both Commerce and MBA students.

Honors and Awards

  • 2017

    $45,000, Two years, NSERC Post-Doctoral Fellowship, University of Toronto, Rotman School of Management

  • 2017

    Finalist, Canadian Operational Research Society (CORS) 2017 Student Best Presentation Competition, HCOR-SIG, University of Toronto

  • 2016

    Honourable Mention, CORS Health Care Operational Research SIG 2016 Student Best Presentation Competition, HCOR-SIG, University of Toronto

  • 2015

    Honourable Mention, CORS 2015 Student Best Paper Competition, Open Category, University of Toronto

  • 2015

    $35,000, Two years, NSERC Alexander Graham Bell Canada Doctoral Scholarship, University of Toronto, Department of Mechanical and Industrial Engineering

  • 2014

    $15,000, Ontario Graduate Scholarship, University of Toronto

  • 2007

    Exceptional Talent Award Granted by Iran's Ministry of Science and Technology, Amirkabir University of Technology (Tehran Polytechnic)

  • 2006

    Ranked 10 among 6,000 participants in national graduate matriculation exam for Industrial Engineering major, Iran, Amirkabir University of Technology (Tehran Polytechnic)

Professional Affiliations/Memberships

  • Canadian Operational Research Society (CORS)

  • Institute for Operations Research and Management Science (INFORMS)

Academic / Professional Service

  • 2015 and 2016

    Session Organizer for Optimization Methods in Healthcare Operations, Canadian Operational Research Society (CORS) conference

  • 2014

    Organizer of 5th MIE Graduate Research Symposium, University of Toronto

  • 2013-2014

    President-elect of The Association of Mechanical and Industrial Engineering Graduate Students, University of Toronto

  • 2010-

    Journal reviewer for European Journal of Operational Research, OMEGA, Computers & Operations Research, Mathematical Methods in Operations Research, Socio-Economic Planning Sciences, among other journal outlets, University of Toronto

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