Vahid Roshanaei

Vahid Roshanaei

Assistant Professor, Teaching Stream, Operations Management & Statistics Area

Degrees:

Ph.D., University of Toronto

Email:

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

Vahid Roshanaei

Vahid Roshanaei

Bio

Academic Positions

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

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

Non-Academic Positions

Researcher, Toronto General Hospital Research Institute

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

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

Exact decomposition methods for joint project selection and scheduling

An almost robust approach for home healthcare network design

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

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

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

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

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

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

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

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

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

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

Almost robust discrete optimization

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

Collaborative operating room planning and scheduling

A discrete event simulation evaluation of distributed operating room scheduling

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

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

Selected Publications - Case

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

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

Research and Teaching Interests

Honors and Awards

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

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

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

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

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

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

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

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

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

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

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

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