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2022

Papers in international journals 

Authors Title Journal Pages
Fortz, B., Gouveia, L., Moura, P.  A comparison of node-based and arc-based hop-indexed formulations for the Steiner tree problem with hop constraints Networks, 80 (2) pp. 178–192, 2022 
Bernardino, R., Gouveia, L., Paias, A., Santos, D.  The multi-depot family traveling salesman problem and clustered variants: Mathematical formulations and branch-&-cut based methods Networks, 89 (4) pp. 502-571, 2022  
Bernardino, R., Paias, A. The family traveling salesman problem with incompatibility constraints Networks, 79 (1) pp. 47-82, 2022 
Gouveia, L., Paias A., Ponte, M.  The travelling salesman problem with positional consistency constraints: An application to healthcare services European Journal of Operational Research 2022
Martins, I., Alvelos, F., Cerveira, A., Kašpar, J. and Marušák, R.,  Solving a harvest scheduling optimization problem with constraints on clearcut area and clearcut proximity International Transactions in Operational Research 2022
J. Janela, M.C. Mourão, L.S. Pinto Arc routing with trip-balancing and attractiveness measures — A waste collection case study Computers and Operations Research, Vol. 147 105934, 2022 
R. Ferreira, V. Móra, M.C. Mourão, M. Moz, L.S. Pinto, J. Ribeiro  Arc Routing for Parking Enforcement Officers: Exact and heuristic solutions” European Journal of Operational Research, Vol. 229, Issue 1 pp. 283-301, 2022 
Ferreira, B., Carriço, N., Barreira, R., Dias, T., Covas, D.  Flowrate Time Series Processing in Engineering Tools for Water Distribution Networks Water Resources Research, 58 (6) 2022
Francisco Saldanha-da-Gama Facility Location in Logistics and transportation: An enduring replationship Transportation Research Part E: Logistics and Transportation Review 166 102903, 2022
Yuchen Li, Zixiang Li, Francisco Saldanha-da-Gama New approaches for rebalancing an assembly line with disruptions International Journal of Computer Integrated Manufacturing, 35 pp.1059–1076, 2022
Javier Alcaraz, Laura Anton-Sanchez, Francisco Saldanha-da-Gama Bi-objective Resource-Constrained Project Scheduling Problem with Time-Dependent Resource Costs Journal of Manufacturing System 63 pp. 506–523, 2022
Bowen Zhang, Xiang Li, Francisco Saldanha-da-Gama Free-floating bike-sharing systems: new repositioning rules, optimization models and solution algorithms Information Sciences, 600 pp.239–262, 2022
Mesquita, M., Marques, S., Marques, M, Marto, M., Constantino M., Borges J.G.  An optimization approach to design forest road networks and plan timber transportation Operational Research, vol. 22 pp. 2973–3001, 2022 
A. A. Filho, H. O. Florentino, M. V. Pato, S. C. Poltroniere, J. F. S. Costa Exact and heuristic methods to solve a bi-objective problem of sustainable cultivation Annals of Operations Research 314 pp. 347–376, 2022 
Ariel Uribe-Rodriguez, Pedro M. Castro, Benoît Chachuat, Gonzalo Guillén-Gosálbez  Lagrangean Decomposition for Integrated Refinery-Petrochemical Short-term Planning Computer Aided Chemical Engineering, vol 49 pp. 583-588, 2022
Pedro M. Castro, Qi Liao, Yongtu Liang  Comparison of mixed-integer relaxations with linear and logarithmic partitioning schemes for quadratically constrained problems Optimization and Engineering 23 pp. 717-747, 2022

 

Book chapter:

P. Teixeira, J. L. Miranda and M. V. Pato The European survey on OR/MS Education: statistical analysis addressing the lecturing modules in “New Perspectives in Operations Research and Management Science - Essays in Honor of Fusun Ulengin”, Y. Topcu, S. Ekia, O. Kabak, E. Aktas, O. Ozaydin (eds), Springer “International Series in Operations Research & Management Science”  book series, chapter 12, pp. 293-316, 2022 

 

2021

 

Papers in international journals 

Authors Title Journal Pages
Bernardino, R.; Paias, A. Heuristic approaches for the family traveling salesman problem International Transactions in Operational Research, 28  
Gouveia, L., McGarraghy, S., Brugha, C.M. Introduction to Special Issue European Journal of Operational Research, 291 (3) 807
Fortz, B., Gouveia, L., Büsing, C., Leitner, M. Editorial Preface: Special issue on network analytics and optimization Networks, 77(4) 475–476
Fortz, B., Gouveia, L., Moura, P. A comparison of node-based and arc-based hop-indexed formulations for the Steiner tree problem with hop constraints Networks (special issue)  
Pedro M. Castro, Qi Liao and Yongtu Liang  Comparison of mixed-integer relaxations with linear and logarithmic partitioning schemes for quadratically constrained problems Optimization and Engineering 2021
Pedro M. Castro Systematic Approaches for Optimal Scheduling of Straight Pipelines with Batch-Centric Formulations Industrial Engineering and Chemistry Research 60 15600-15617
Yamin Yan, Pedro M. Castro, Qi Liao, Yongtu Liang  An Effective Decomposition Algorithm for Scheduling Branched Multiproduct Pipelines Computers & Chemical Engineering 154 107494
Pedro M. Castro  A piecewise relaxation for quadratically constrained problems based on a mixed-radix numeral system Computers & Chemical Engineering 153 107459
Hossein Mostafaei, Pedro M. Castro, Fabricio Oliveira, Iiro Harjunkoski  Efficient Formulation for Transportation Scheduling of Single Refinery Multiproduct Pipelines European Journal of Operational Research 293 731-747
Hossein Mostafaei, Pedro M. Castro, Susana Relvas, Iiro Harjunkoski  A Holistic MILP Model for Scheduling and Inventory Management of a Multiproduct Oil Distribution System Omega 98 102110
R. Ferreira, V. Móra, M.C. Mourão, M. Moz, L.S. Pinto, J. Ribeiro  Arc Routing for Parking Enforcement Officers: Exact and heuristic solutions European Journal of Operational Research, 229, 1 283-301
Chuan Wang, Hongjie Lan, Francisco Saldanha-da-Gama, Youhua Chen On optimizing a multi-mode last mile parcel delivery system with vans, truck and drone Electronics 2021
Yuchen Li, Francisco Saldanha-da-Gama, Ming Liu, Zaoli Yang A risk-averse two-stage stochastic programming model for a joint multi-item capacitated line balancing and lot-sizing European Journal of Operational Research 2021
Yuchen Li, Zixiang Li, Francisco Saldanha-da-Gama (Data-Driven) New approaches for re-balancing an assembly line with disruptions International Journal of Computer Integrated Manufacturing 2021
Antonio Diglio, Juanjo Peiró, Carmela Piccolo, Francisco Saldanha-da-Gama Solutions for districting problems with chance-constrained balancing requirements Omega, 103 2021
Zehranaz Dönmez, Bahar Y.Kara, Özlem Karsu, Francisco Saldanha da Gama Humanitarian Facility Location under Uncertainty: Critical Review and Future Prospects Omega, 102 2021
Henrique Amorim Almeida, Rita M T Ascenso, L. Ferreira, Eunice S.G. Oliveira Body morphology of biomechanical students from the Polytechnic of Leiria in book: Advances and Current Trends in Biomechanics ISBN 9781003217152
A. Paias, M. Mesquita, M. Moz, M. Pato  A network flow-based algorithm for bus driver rerostering OR Spectrum, 43, 2 543-576
Angelo Aliano Filho, Teresa Melo,  M. Pato A bi-objective mathematical model for integrated planning of sugarcane harvesting and transport operations Computers and Operations Research 134 2021
Mesquita, M., Paias, A., Wise, L.  Optimizing the routes of a research vessel with an hybrid metaheuristic International Journal of Management Science and Engineering Management 16, 1 58-71
Mesquita, M., Susete Marques, Marlene Marques, Marco Marto, Constantino, M., José G. Borges  An optimization approach to design forest road networks and plan timber transportation Operational Research - An International Journal 2021
Pig Slurry, Sílvia Sousa, Elizabeth Duarte, Mesquita, M., Sandra Saraiva  Energetic Valorization of Cereal and Exhausted Coffee Wastes Through Anaerobic Co-digestion Frontiers in Sustainable Food Systems 2021
Maria do Rosário Cameira, João Rolim, Fernanda Valente, Mesquita, M., Ulrike Dragosits, Cláudia M.d.S. Cordovil   Translating the agricultural N surplus hazard into groundwater pollution risk: Implications for effectiveness of mitigation measures in nitrate vulnerable zones Agriculture, Ecosystems & Environment, 306 2021
Proença, C., Neves, M., Dias, J.C. Martins, P. Determinants of sovereign debt ratings in clusters of European countries – effects of the crisis Journal of Financial Economic Policy 2021
Martins, P., Martins, F. A. Launcher nodes for detecting efficient influencers in social networks Online Social Networks and Media, 25 2021
Domingues TD, Grabowska AD, Lee J-S, Ameijeiras-Alonso J, Westermeier F, Scheibenbogen C, Cliff JM., Nacul L., Lacerda EM., Mouriño H., Sepúlveda N.  Herpesviruses Serology Distinguishes Different Subgroups of Patients From the United Kingdom Myalgic Encephalomyelitis/Chronic Fatigue Syndrome Biobank Frontiers in Medicine, 8:686736 2021
Romagosa M, Pérez-Jorge S, Cascão I, Mouriño H, Lehodey P, Pereira A, Marques TA, Matias L, Silva MA.  Food talk: 40-Hz fin whale calls are associated with prey biomass Proc. R. Soc. B 20211156 2021
Carvalho, M., Klimentova, X., Glorie, K.M., Viana, A., Constantino, M. Robust Models for the Kidney Exchange Problem INFORMS J. Comput., 33 861-881

 

2020

 

Papers in international journals 

 

Authors Title Journal Pages

Bektaş, T.; Gouveia, L.; Santos, D.

Compact formulations for multi-depot routing problems: Theoretical and computational comparisons

Computers & Operations Research,124

 

Carvalho, A. S.; Captivo, M. E.; Marques, I. 

Integrating the ambulance dispatching and relocation problems to maximize system’s preparedness

European Journal of Operational Research, 283(3),

1064-1080

Carvalho, M.; Klimentova, X.; Glorie, K. Viana, A.; Constantino, M.

Robust Models for the Kidney Exchange Problem

INFORMS Journal on Computing, 33(3)

837-1257

Castro, P. M.; Ave, G. D.; Engell, S.; Grossmann, I.; Harjunkoski, I.

Industrial Demand Side Management of a Steel Plant Considering Alternative Power Modes and Electrode Replacement

Industrial Engineering and Chemistry Research, 59 

13642-13656

Corberán, A.; Landete, M.; Peiró, J. Saldanha-da-Gama, F.

The facility location problem with capacity transfers

Transportation Research Part E: Logistics and  Transportation Review , 38

 

Diglio, A.; Nickel, S.; Saldanha-da-Gama, F.

Towards a stochastic programming modeling framework for districting

Annals of Operations Research, 292

249-285

Esgalhado, F.; Batista, A. G; Mouriño, H.; Russo, S.; dos Reis, C. R. P.; Serrano, F.; Vassilenko, V.; Ortigueira, M. D.

Automatic Contraction Detection Using Uterine Electromyography

Applied Sciences, 10(20)

 

Esgalhado, F., Batista, A. G; Mouriño, H., Russo, S., dos Reis, C. R. P., Serrano, F. Vassilenko, V., Ortigueira, M. D.

Uterine contractions clustering based on electrohysterography

Computers in Biology and Medicin, 123

 

Gouveia, L.; Leitner, M.; Ruthmair, M.; Sadykov, R.

Corrigendum to “Extended Formulations and Branch-and-Cut Algorithms for the Black-and-White Traveling Salesman Problem” [European Journal of Operational Research, 262(3) 2017, 908–928]

European Journal of Operational Research, 285(3)

1199-1203

Gouveia, L.; Leitner, M.; Ljubić.

A polyhedral study of the diameter constrained minimum spanning tree problem

Discrete Applied Mathematics, 285 

364-379

Martins, P.

Planning Production and Workforce in a Discrete-Time Financial Model Using Scenarios Modeling

SN Operations Research Forum, 1

art. no. 25

Merkert, L.; Castro, P. M.

Optimal Scheduling of a District Heat System with CHP Plant considering Pipeline Dynamics

Industrial & Engineering Chemistry Research 59(13)

5969-5984

Neto, T.; Constantino, M.; Martins, I.; Pedroso, J. P.

A multi-objective Monte Carlo tree search for forest harvest scheduling

European Journal of Operational Research, 282(3)

1115-1126

Santos, M.; Mouriño, H.; Moita, M. T.; Silva, A.; Amorim, A.; Oliveira , P. B.

Characterizing phytoplankton biomass seasonal cycles in two NE Atlantic coastal bays

Continental Shelf Research, 107

 

Uribe-Rodriguez, A.; Castro, P. M. Guillén-Gosálbez, G.; Chachuat, B.

Global Optimization of Large-scale MIQCQPs via Cluster Decomposition: Application to Short–Term Planning of an Integrated Refinery–Petrochemical Complex

Computers & Chemical Engineering, 140

 

 

2019

 

Papers in international journals 

 

Authors Title Journal Pages

Aliano Filho, A.; de Oliveira Florentino, H.; Vaz Pato, M.; Cristina Poltroniere, S.; Fernando da Costa Silva, J.

Exact and heuristic methods to solve a bi-objective problem of sustainable cultivation

Annals of Operations Research 

 

Almeida, M. T.; Brás, R.

The maximum l-triangle k-club problem: compexity, properties and algorithms

Computers and Operations Research 111

258-270

Bektas, T., Gouveia, L., Santos, D.

Revisiting the Hamiltonian p-median problem: A new formulation on direct graphs and a branch-and-cut algorithm

European Journal of Operational Research, 276(1)

40-64

Bektas, T., Gouveia, L., Martínez-Sykora, A., Salazar-González, J. J.

Balanced vehicle routing: Polyhedral analysis and branch-and-cut algorithm

European Journal of Operational Research, 273(2)

452-463

Burak Kınay, O., Saldanha-da-Gama, F.,Y. Kara, B.

On multicriteria chance-constrained capacitated single-source discrete facility location problems

Omega 83 

107-122

Bezerra, S. S., Guerreiro, M. P., Pessoa, N. F., Pereira da Silva, M. G., de Barros, M. G., Ferreira Gomes, J. J., Athayde, M. P., Auad, R. Z., Soares Sobrinho, J. L.

The Perspectives of Patients and Health Professionals Regarding the Tuberculosis Control Programme in Recife, Brazil: A Contribution to Evaluation

Phamarcy 7 (2)

 

Castro, P. M.; Harjunkoski, I.; Grossmann, I. E.

 

Discrete and Continuous-time Formulations for Dealing with Breaks: Preemptive and Non-preemptive Scheduling

European Journal of Operational Research 278(2)

563-577

Castro, P. M.; Mostafaei, H.

Batch-centric Scheduling Formulation for Treelike Systems with Forbidden Product Sequences

Computers & Chemical Engineering 122

2-18

Corberán, A., Landete, M., Peiró, J., Saldanha-da-Gama, F.

Improved polyhedral descriptions and exact procedures for a broad class of uncapacitated p-hub median problems

Transportation Research Part B: Methodological 123

38-63

Cortinhal, M. J.; Lopes, M. J.; Melo, M. T.

A multi-stage supply chain network design problem with in-house production and partial product outsourcing

Applied Mathematical Modelling 70

572-594

F. Almeida, B., Correia, I., Saldanha-da-Gama, F.

Modeling frameworks for the multiskill resource-constrained project scheduling problem: a theoretical and empirical comparison

International Transactions in Operational Research 26(1)

946-967

Fernández, E., Hinojosa, Y., Puerto, J., Saldanha-da-Gama, F.

New algorithmic framework for conditional value at risk: application to stochastic fixed-charge transportation

European Journal of Operational Research, 277(1)

215-226

Gouveia, L., Leitner, M., Ruthmair, M.

Layered graph approaches for combinatorial optimization problems

Computers & Operations Research 102 

22-38

Li, P., Lan, H., Saldanha-Da-Gama, F.

A Bi-Objective Capacitated Location-Routing Problem for Multiple Perishable Commodities

IEEE Access

136729-136742

Liao, Q.; Castro, P. M.; Liang, Y.; Zhang, H.

Batch-centric Model for Scheduling Straight Multi-source Pipelines

AIChE J. 65(10)

 

Liao, Q.; Castro, P. M.; Liang, Y.; Zhang, H.

Computationally Efficient MILP model for Scheduling a Branched Multiproduct Pipeline System

Industrial & Engineering Chemistry Research 58 (13)

5236-5251

Liao, Q.; Castro, P. M.; Liang, Y.; Zhang, H.

New Batch-Centric Model for Detailed Scheduling and Inventory Management of Mesh Pipeline Networks

Computers & Chemical Engineering 130

 

Lúcio Martins, C.; Melo, T.; Vaz Pato, M.

Redesigning a food bank supply chain network in a triple bottom line context

International Journal of Production Economics 214

234-247

Lúcio Martins, C.; Vaz Pato, M.

Supply chain sustainability: A tertiary literature review

Journal of Cleaner Production 225

995-1016

Marques, I.; Captivo, M. E.; Barros, N.

Optimizing the master surgery schedule in a private hospital

Operations Research for Health Care 20

11-24

Marques, T., Jorge, P., Mouriño, H., Thomas, L., Moretti, D. J., Dolan, K., Claridge, D. and Dunn, C.

Estimating group size from acoustic footprint to improve Blainville’s beaked whale abundance estimation

Applied Acoustic 156

434-439

Neves, M. E. D., Fernandes, C. M., Martins, P. C.

Are ETFs good vehicles for diversification? New evidence for critical investment periods

Borsa Istanbul Review 19(2)

149-157

Peiró, J., Corberán, A., Martí, R., Saldanha-da-Gama, F.

Heuristic Solutions for a Class of Stochastic Uncapacitated p-Hub Median Problems

Journal of Food Process Engineering 41(1)

1126-1149

Santos, R., Martins, J. P., Felgueiras, M., Ferreira, L.

Binary Classification based on a quantitative variable – an accuracy comparison by simulation

REVSTAT - Statistical Journal 17(2)

223-244

 

Books 

Authors Title Edition

Mourão, M.C., Pinto, L.S., Simões, O., Valente, J., Pato, M. V.

Investigação Operacional. Exercícios e Aplicações

2nd edition, Escolar Editora, 304 pages 

 

Book Chapters 

Authors Title Edition Pages

Laporte, G., Nickel, S., Saldanha-da-Gama, F.

Introduction to Location Science (chapter 1)

Location Science (2nd edition), Springer International Publishing

1-21

Correia, I., Saldanha-da-Gama, F.

Facility location under uncertainty (chapter 8)

Location Science (2nd edition), Springer International Publishing

185-213

Stefan, N., Saldanha-da-Gama, F.

Multi-period facility location (chapter 11)

Location Science (2nd edition), Springer International Publishing

303-326

Domingues, T. D., Lacerda, E., Nacul, L., Mouriño, H. and Sepúlveda, N.

An Application of Finite Mixture Models to Serology Data from the United Kingdom Myalgic Encephalomyelitis/Chronic Fatigue Syndrome Biobank

Risk Analysis and Statistical Modelling, Springer International Publishing

 

Martins, A. L., Nunes, A. C., Pereira, R., Ferreira, J. C.

Improving feet solution - a case study

Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, Springer International Publishing

 

 

Editd Books 

Editors Title Publishers

Laporte, G., Nickel, S., Saldanha-da-Gama, F. (editors)

Location Science (2nd edition)

Springer International Publishing, 767 pages

 

2018

 

Papers in international journals 

Authors Title Journal Pages

Almeida, B.F.; Correia, I.; Saldanha-da-Gama, F.

A biased random-key genetic algorithm for the project scheduling problem with flexible resources

TOP 26

283-308

Almeida, L.; Respício, A.

Decision support for selecting information security controls

Journal of Decision Systems, Sup1 

173-180

Alumur, S.A.; Nickel, S.; Rohrbeck, B.; Saldanha-da-Gama, F.

A Comparative Study of Exact Methods for the Bi-objective Integer Cutting Stock Problem

Journal of the Operational Research Society, 69 

91-107

Aliano Filho, A.; Carlos Moretti, A.; Vaz Pato, M.

Modeling congestion and service time in hub location problems

Applied Mathematical Modelling, 55

13-32

Bernardino, R.; Paias, A.

Metaheuristics based on decision hierarchies for the traveling purchaser problem

International Transactions in Operational Research, 25(4)

1269-1295

Bernardino, R.; Paias, A.

Solving the family traveling salesman problem

European Journal Of Operational Research, 267(2)

453-466

Burak Kınay, O.; Y. Kara, B.; Saldanha-da-Gama, F.; Correia, I.

Modeling the shelter site location problem using chance constraints: A case study for Istanbul

European Journal of Operational Research, 270

132-145

Castillo Castillo, P.; Castro, P. M.; Mahalec, V.

Global Optimization of MIQCPs with Dynamic Piecewise Relaxations

Journal of Global Optimization, 71

691-716

Castro, P. M.; Grossmann, I.E.; Zhang, Q.

Expanding Scope and Computational Challenges in Process Scheduling

Computers & Chemical Engineering, 114

14-42

Castro, P. M.; Mostafaei, H.

Batch-centric Scheduling Formulation for Treelike Systems with Forbidden Product Sequences

Computers & Chemical Engineering,122

2-18

Constantino, M.; Martins, I.

Branch-and-cut for the forest harvest scheduling subject to clearcut and core area constraints

European Journal of Operational Research, 265(2)

723-734

Correia, I.; Nickel, S.;Saldanha-da-Gama, F.

A stochastic multi-period capacitated multiple allocation hub location problem: formulation and inequalities

Omega, 74

122-134

Dunke, F., Nickel, S., Heckmann, I., and Saldanha-da-Gama, F.

Time Traps in Supply Chains: is Optimal Still Good Enough? European Journal of Operational Research, 264 813-829

Filho, A., Moretti, A., and Vaz Pato, M.

A Comparative Study of Exact Methods for the Bi-objective Integer Cutting Stock Problem Journal of the Operational Research Society, 69 91-107

Florentino, H., Cantane, D., Santos, F., Reis, C., Vaz Pato, M., Jones, D., Cerasuolo, M., Oliveira, R., and Lyra, L.

Genetic algorithm for optimization of the Aedes aegypti control strategies Pesquisa Operacional, 38(3) 389-411

Fortz, B.; Gouveia, L.; Joyce-Moniz, M.

Optimal design of switched Ethernet networks implementing the Multiple Spanning Tree Protocol Discrete Applied Mathematics, 234 114-130

Gouveia, L.; Leitner, M.; Joyce-Moniz, M.

Branch and cut methods for the network design problem with vulnerability constraints Computers & Operations Research, 91 190-208

Gouveia, L.; Pesneau, P.; Ruthmair, M.; Santos, D.

Combining and Projecting Flow Models for the (Precedence Constrained) Asymmetric Traveling Salesman Problem Networks, 71(4)

451–465

Inácio, P., Gomes, J.J., Airaksinen, M., Cavaco, A.

Exploring sociodemographic and economic factors that promote adverse drug reactions reporting by patients Health Policy, 122(3)

263-268

Kinay, Ö.B., Kara, B., and Saldanha-da-Gama, F.

On multicriteria chance-constrained capacitated single-source discrete facility location problems Omega, 83 107-122

Kinay, Ö.B., Kara, B., Saldanha-da-Gama, F., and Correia, I. 

Modeling the shelter site location problem using chance constraints: A case study for Istanbul European Journal of Operational Research, 270 

132-145

Lopes, I., Martins, I., Mesquita, M., Sousa, V.V., and Ferreira-Dias, S.

Designing healthy ice creams with linear programming: an application using traditional Portuguese products

Journal of Food Process Engineering, 41(1)

 

Lúcio Martins, C.; Melo, T.; Vaz Pato, M.

Redesigning a food bank supply chain network in a triple bottom line International Journal of Production Economics, 214 234-247

Mateus, C.; Marques, I.; Captivo, M. E.

Local Search Heuristics for a Surgical Case Assignment Problem Operations Research for Health Care, 17 71-81

Marín, A., Martínez-Merino, L.I., Rodríguez-Chía, A.M., and Saldanha-da-Gama, F.

Multi-period Stochastic Covering Location Problems: modeling framework and solution approach

European Journal of Operational Research, 268(2)

432-449

Respício, A., Moz, M., Margarida, P., Somensi, R., and Flores, C.

A shift based approach for multi skill nurse staffing: An application to Brazilian hospitals BMC Medical Informatics and Decision Making,  

Respicio, A., Moz, M., Vaz Pato, M., Somensi, R., and Flores, C.D.

A computational application for multi-skill nurse staffing in hospital units BMC medical informatics and decision making, 8(53)  

Saldanha-da-Gama, F.

 

Comments on: Extensive facility location problems on networks: An updated review TOP, 26 229-232

 


Accepted Papers 

 

Tchorzewski, J.; Respicio, A.; Kolodziej, J.

 

ANN-Based Secure Task Scheduling in Computational Clouds ECMS 2018, European Council for Modeling and Simulation 468-474

 

2017

 

Papers in international journals 

Authors Title Journal Pages

Albareda-Sambola, M.; Fernández, E.; Saldanha-da-Gama, F.

Heuristic solutions to the facility location problem with general Bernoulli demands INFORMS J. Comput. 29(4) 737–753

Bektas, T., Gouveia, L., Santos, D.

New Path elimination constraints for multi depot routing problems Networks, 70(3) 246-261

Carvalho, F..; Almeida, M. T.

The triangle k-club problem J. Comb. Optim., 33(3), 814–846

Castillo Castillo, P. A., Castro, P. M., Mahalec, V.

Global Optimization of Nonlinear Blend-Scheduling Problems Engineering, 3 (2) 188-201

 

Castro, Jordi; Nasini, Stefano; Saldanha-da-Gama, Francisco

 

A cutting-plane approach for large-scale capacitated multi-period facility location using a specialized interior-point method Math. Program. 163 (2017), no. 1-2, Ser. A 411–444

 

Castro, P. M. Mostafaei, H.

 

Product-centric Continuous-time Formulation for Pipeline Scheduling Computers & Chemical Engineering 104 (2017) 283-295

 

Castro, P. M.

 

Optimal Scheduling of Multiproduct Pipelines in Networks with Reversible Flow Ind. Eng. Chem. Res. 56 (2017), no. 34 9638-9656

 

Castro, P. M.

 

Spatial branch-and-bound algorithm for MIQCPs featuring multiparametric disaggregation Optim. Methods Softw. 32 (2017), no. 4 719–737

 

Constantino, Miguel; Martins, Isabel

 

Branch-and-cut for the forest harvest scheduling subject to clearcut and core area constraints European J. Oper. Res. 265 (2018), no. 2 723–734

 

Constantino, Miguel; Mourão, M. Cândida; Pinto, Leonor S.

 

Dissimilar arc routing problems Networks 70 (2017), no. 3 233–245

 

Fonseca, Raquel J.

 

Capital asset pricing model—a structured robust approach Optimization and decision science: methodologies and applications (2017) 385–392

 

Fortz, B., Gouveia, L., Joyce-Moniz, M.

 

Models for the piecewise linear unsplittable multicommodity flow problems.  European J. Oper. Res. 261 (2017), no. 1 30-42

 

Gouveia, L., Leitner, M.

 

Design of a survibable networks with vulnerability constraints European J. Oper. Res. 258 (2017), no. 1 89-103

 

Gouveia, L., Leitner, M., Ruthmair, M.

 

Extended formulations and branch-and-cut algorithms for the black-and-white traveling salesman problem European J. Oper. Res. 262 (2017), no. 1 908-928

 

Gouveia, L., Pioró, M., Rak, J.

 

Preface: static and dynamic optimization models for network routing problems Networks 69 (2017), no. 1 3-5

 

Gouveia, L., Simonetti, L.

 

Spanning trees with a constraint on the number of leaves. A new formulation Comput. Oper. Res. 82 (2017) 257-268

Inácio, P., José Gomes, J., Airaksinen, M., Cavaco, A.

Exploring sociodemographic and economic factors that promote adverse drug reactions reporting by patients Health Policy 122 (2017), no. 3 263-268

Lopes, I., Martins, I., Mesquita, M., Valença de Sousa, V., Ferreira-Dias, S.

Designing healthy ice creams with linear programming: an application using traditional Portuguese products Journal of Food Process Engineering (2017)  

Marques, I., Eugénia Captivo, M.

Different stakeholders' perspectives for a surgical case assignment problem: deterministic and robust approaches European J. Oper. Res. 261 (2017), no. 1 260–278

Martins, Carlos Lúcio; Fonseca, Maria da Conceição; Pato, Margarida Vaz

Modeling the steering of international roaming traffic European J. Oper. Res. 261 (2017), no. 2 735–754

Martins, P.

Integrating financial planning, loaning strategies and project scheduling on a discrete-time model Journal of Manufacturing Systems 44 (2017), no.1 217-229

Martins, Pedro; Neves, Elisabete

Corporates' control strategies using network optimization Int. Trans. Oper. Res. 24 (2017), no. 5 1041–1059

Mesquita, Marta; Murta, Alberto G.; Paias, Ana; Wise, Laura

A metaheuristic approach to fisheries survey route planning Int. Trans. Oper. Res. 24 (2017), no. 3 439–464

Neto, Teresa; Constantino, Miguel; Martins, Isabel; Pedroso, João Pedro

Forest harvest scheduling with clearcut and core area constraints Ann. Oper. Res. 258 (2017), no. 2 453–478

Respício, A., Martinho, R, Domingos, D.

Reliability of AAL systems modeled as BPMN business processes Lecture Notes in Business Information Processing, 291 (2017) 535-550

Ting, L.; Castro, P. M.; Zhimin, L.

 

Life Cycle Assessment and Optimization of an Iron Making System with a Combined Cycle Power Plant: a Case study from China Clean Technologies and Environmental Policy 19 (2017), no. 4 1133-1145

 

2016

 

Papers in international journals 

Authors Title Journal Pages

Alumur, S. A.; Nickel, S.; Saldanha-da-Gama, F.; Seçerdin, Y.

Multi-period hub network design problems with modular capacities

Annals of Operations Research, 246 289–312

Almeida, B. F. ; Correia, ; I. ; Saldanha-da-Gama, F.

Priority-Based Heuristics for the Multi-Skill Resource Constrained Project Scheduling Problem

Expert Systems with Applications, 57 91- 103

Bautzer, A.; Gouveia, L.; Paias, A.; Pires, J. M. 

Models for a Steiner multi-ring network design problem with revenues TOP, 24(2) 360–380

Cortinhal, M.  J.; Mourão, M. C.; Nunes, A. C.

Local search heuristics for sectoring routing in a household waste collection context European J. Oper. Res. 255 (2016), no. 1 68–79

 

Costa, M. G., Captivo, M. E.

Weight Distribution in Container Loading – A Case Study International Transactions in Operations Research 23 (2016), no. 1-2 239-263

 

Diarrassouba, I.; Gabrel, V.; Mahjoub, A. R.; Gouveia, L.; Pesneau, P.

 

Integer programming formulations for the k-edge-connected 3-hop-constrained network design problem Networks 67 (2016), no. 2 148–169

Fachada, N.; Lopes, V. V.; Martins, R. C.; Rosa, A. C.

micompr: An R Package for Multivariate Independent Comparison of Observations

The R Journal 8 (2016), no. 2 405-420

Fachada, N.; Lopes, V. V.; Martins, R. C.; Rosa, A. C.

PerfAndPubTools – Tools for Software Performance Analysis and Publishing of Results

Journal of Open Research Software 4 (2016), no. 1 1–7

Fachada, N.; Lopes, V. V.; Martins, R. C.; Rosa, A. C.

Utilities for Analyzing Series Simulation Output

Journal of Open Research Software 4 (2016), no. 1 38 pp.

 

Fortz, Bernard; Gouveia, Luís

 

Editorial [special issue on "computational optimization methods in telecommunications''] EURO J. Comput. Optim. 4 (2016), no. 2 123–124

 

Martins, Pedro; Quelhas, Ana Paula

 

Workforce planning and financing on a production/capital discrete-time model Int. Trans. Oper. Res. 23 (2016), no. 3 507–538

Mostafaei, Hossein; Castro, Pedro M.; Ghaffari-Hadigheh, Alireza

Short-term scheduling of multiple source pipelines with simultaneous injections and deliveries Comput. Oper. Res. 73 (2016) 27–42

 

Nickel, S., Reuter-Oppermann, M., Saldanha da Gama, F.

 

Ambulance Location under Stochastic Demand: A Sampling Approach Operations Research for Health Care 8 (2016) 24−32

 

Ting, Li; M. Castro, Pedro; Zhimin, Lv

 

Models and Relaxations for the Wastewater Treatment Design Problem Chemical Engineering Research and Design 106 (2016) 191-204

 

Vermuyten, Hendrik; Lemmens, Stef; Marques, Inês; Beliën, Jeroen

 

Developing compact course timetables with optimized student flows European J. Oper. Res. 251 (2016), no. 2 651–661

 

     

 

Book Chapters

 

Martins, Pedro

 

Planning production and workforce in a discrete-time financial model: optimizing cash-flows released Computational management science 115–121, Lecture Notes in Econom. and Math. Systems, 682, Springer, Cham, 2016

 

Mostafaei, Hossein; Castro, Pedro M.

 

Continuous-time formulation for oil products transportation scheduling Computational logistics 384–396, Lecture Notes in Comput. Sci., 9855, Springer, [Cham], 2016

 

Scholz, T.; Raischel, F.; Lind, P. G.; M. Wächter; Lopes, V. V.; Lehle, B.

 

A Direct Method for the Langevin-Analysis of Multidimensional Stochastic Processes with Strong Correlated Measurement Noise Time Series Analysis and Forecasting: Selected Contributions from the ITISE Conference 3-11, Springer, 2016

 

Edited Books 

 

 

Gouveia, Luis; Lodia, Andrea; Mahjoub, A. Ridha

 

Preface [Special Issue dedicated to the Third International Symposium on Combinatorial Optimization (ISCO 2014)] Discrete Optim. Discrete Optim. 22, part A, 2016  
       

 

2015

 

Papers in international journals 

Authors Title Journal Pages

 

Benavent, Enrique; Corberán, Ángel; Gouveia, Luis; Mourão, Maria Cândida; Pinto, Leonor Santiago

 

Profitable mixed capacitated arc routing and related problems TOP 23 (2015), no. 1 244-274

 

Borges, P.; Martins, I.; Bergseng, E.; Eid, T.; Gobakken, T.

 

Effects of site productivity on forest harvest scheduling subject to green-up and maximum area restrictions Scandinavian Journal of Forest Research (2015) 1851-1891

 

Botton, Quentin; Fortz, Bernard; Gouveia, Luis

 

On the hop-constrained survivable network design problem with reliable edges Comput. Oper. Res. 64 (2015) 159–167

 

Captivo, M. E.; Marques, I.; Moz, M.

 

ORAHS 2014 – for better practices in health care management Operations Research for Health Care 7 (2015) 1-2

 

Castro, Pedro M.

 

New MINLP formulation for the multiperiod pooling problem Process Systems Engineering (2015)  

 

Castro, Pedro M.

 

Tightening piecewise McCromick relaxations for bilinear problems Computers & Chemical Engineering 72 (2015) 300-311

 

Castro, Pedro M.; Marques, Inês

 

Operating room scheduling with generalized disjunctive programming Comput. Oper. Res. 64 (2015) 262–273

 

Catanzaro, Daniele; Gouveia, Luis; labbé, Martine

 

Improved integer linear programming formulations for the job Sequencing and tool Switching Problem European Journal of Operational Research 244 (2015), no. 3 766-777

 

Constantino, Miguel; Gouveia, Luis; Mourão, Maria Cândida; Nunes, Ana Catarina

 

The mixed capacitated arc routing problem with non-overlapping routes European Journal of Operational Research 244 (2015), no. 2 445-456

 

Correia, I., Saldanha da Gama, F.

 

A note on ‘Branch-and-price approach for the multi-skill project scheduling problem Optimization Letters 9 (2015), no. 6 1255-1258

 

Correia, I., Saldanha da Gama, F.

 

A note on ‘Branch-and-price approach for the multi-skill project scheduling problem Optimization Letters 9 (2015), no. 6 1255-1258

 

Correia, Isabel; Saldanha-da-Gama, Francisco

 

Facility Location Under Uncertainty Location Science (2015) 177-203

 

Cortinhal, M. J.; Lopes, M. J.; Melo, M. T.

 

Dynamic design and re-design of multi-echelon multi-product logistics networks with outsourcing opportunities: A computational study Computers & Industrial Engineering 90 (2015) 118-131

 

Cusack, C.; Mouriño, H.; Moita, M. T., Silke, J.

Modelling Pseudo-nitzschia events off southwest Ireland Journal of Sea Research 105 (2015) 30-41

Dario, P.; Mouriño, H.; Oliveira,  A. R.; Lucas, I.; Ribeiro, T.; Porto, M. J.

Assessment of IrisPlex-based multiplex for eye and skin color prediction with application to a Portuguese population International Journal of Legal Medicine 129 (2015), no. 6 1191-1200

Ferreira, L.; Constantino, M. F.; Borges, J. G.; Garcia-Gonzalo, J.

Addressing wildfire risk in a landscape-level scheduling model: an application in Portugal Forest Science 61 (2015), no. 2 266-277

Girão-Silva, R.; Craveirinha, J.; Clímaco, J.; Captivo, M. E.

Multiobjective routing in mutiservice MPLS networks with traffic splitting – A network flow approach Journal of Systems Science and Systems Engineering 25 (4) 389-432

Gouveia, L.; Leitner, M.; Ljubić, I.

The two-level diameter constrained spanning tree problem Mathematical Programming 150 (2015), no. 1 49-78

Gouveia, L.; Lopes, M. J.; de Sousa, A.

Single PON network desing with unconstrained splitting stages European Journal of Operational Research, 240(2)

361-371

Gouveia, L.; Martins, P

Solving the maximum edge-weight clique problem in sparse graphs with compact formulations EURO J. Comput. Optim. 3(1) 1–30

Gouveia, L; Ruthmair, M

Load-dependent and precedence-based models for pickup and delivery problems Comput. Oper. Res. 63 (2015) 56–71

Laporte, G; Nickel, S; Saldanha-da-Gama, F

Introduction to Location Science Location Sciece (2015)

1-18

Malheiro, A.; Castro, P. M.; Lima, R. M.; Estanqueiro, A.

Integrated sizing and scheduling of wind/PV/diesel/battery isolated systems Renewable Energy 83 (2015)

646-657 

Marques, I.; Captivo, M. E.; Vaz Pato, M.

A Novel Monolithic MILP Framework for Lot-Sizing and Scheduling of Multiproduct Treelike Pipeline Networks Ind. Eng. Chem. Res. 54 (2015), no. 54 9202-9221

Mostafaei, H.; Castro, P. M., Ghaffari-Hadigheh, A.

Blowup for the nonlinear Schrödinger equation with an inhomogeneous damping term in the L2-critical case Commun. Contemp. Math. 17 (2015), no. 3

16 pp.

Neves, M. E. D.; Proença, C. A. N.; Martins, P. C.

Interdependence or reaction when the background is the financial crisis: the case of portuguese stock market Int. Jour. of Econ. Persp. 9 (2015), no. 3 5-20

Nickel, S.; Saldanha-da-Gama, F.

Multi-Period Facility Location Location Science (2015) 289-310

Antunes, L.; Gomes, J. J.;, Cavaco, A. M.

How pharmacist–patient communication determines pharmacy loyalty? Modeling relevant factors Research in Social and Administrative Pharmacy 11 (2015), no. 4 560-570


Book Chapters 

Magalhães, T.; Lopes, S.; Gomes, J. J.; Seixo, F.

 

The Length of Hospital Stay in Acute Myocardial Infarction: A Predictive Model with Laboratory and Administrative Data New Contributions in Information Systems and Technologies Advances in Intelligent Systems and Computing 353, Springer International Publishing; 2015

 

2014

 

Papers in international journals 

Authors Title Journal Pages

Aguirre, A. M.; Méndez, C. A.; Castro, P. M.

A Hybrid Scheduling Approach for Automated Flow Shops with Material Handling and Time Constraints International Journal of Production Research, 52(9) 2788-2806

Almeida, M. T.; Carvalho, F. D.

Two-phase heuristics for the k-club problem Computers & Operations Research, 52 94-104

Almeida, M. T.; Carvalho, F. D.

An analytical comparison of the LP relaxations of integer models for the k-club problem European Journal of Operational Research, 232(3) 489–498

Antunes, L. P.; Gomes, J. J.; Cavaco, A. M

How pharmacist-patient communication determines pharmacy loyalty? Modeling relevant factors Research in Social and Administrative Pharmacy, 11(4) 560-570

Bektaş, T.; Gouveia, L.

Requiem for the Miller-Tucker-Zemlin subtour elimination constraints? European Journal of Operational Research, 236(34), 820–832

Castro, P. M.; Grossmann, I. E.

Optimality-based bound contraction with multiparametric disaggregation for the global optimization of mixed-integer bilinear problems Journal of Global Optimization, 59  277–306

Castro, P. M.; Grossmann, I. E.

Global Optimal Scheduling of Crude Oil Blending Operations with RTN Continuous-time and Multiparametric Disaggregation Industrial & Engineering Chemistry Research, 53(39) 15127-15145

Castro, P. M.; Grossmann, I. E.; Veldhuizen, P.; Esplin, D.

Optimal Maintenance Scheduling of a Gas Engine Power Plant using Generalized Disjunctive Programming AIChE Journal, 60(6) 2083-2097

Castro, P. M.; Rodrigues, D.; Matos, H.A.

Cyclic Scheduling of Pulp Digesters with Integrated Heating Tasks Industrial & Engineering Chemistry Research, 53(44), 17098-17111

Correia, I.; Saldanha da Gama, F.

The impact of fixed and variable costs in a multi-skill project scheduling problem: an empirical study Computers & Industrial Engineering, 72 230-238

Correia, I.; Nickel, S.; Saldanha-da-Gama, F.

Multi-product capacitated single-allocation hub location problems: formulations and inequalities Networks and Spatial Economics, 14(1) 1–25

Fachada, N.; Figueiredo, M. A. T.; Lopes, V. V.; Martins, R. C.; Rosa, A. C.

Spectrometric differentiation of yeast strains using minimum volume increase and minimum direction change clustering criteria Pattern Recognition Letters, 45 (2014) 55-61

Filho, A. A.; Florentino, H. O.; Vaz Pato, M.

Metaheuristics for a Crop Rotation Problem International Journal of Metaheuristics, 3(3) 199-222

Godinho, M. T.; Gouveia, L.; Pesneau, P.

Natural and extended formulations for the time-dependent traveling salesman problem Discrete Applied Mathematics, 164 138–153

Gollowitzer, S.; Gouveia, L.; Laporte, G.; Pereira, D. L.; Wojciechowski, A.

A comparison of several models for the Hamiltonian p-median problem Networks, 63(4) 350–363

Gomes, J. J.; Barão, I.; Oliveira,.

Is It Always Necessary To Take Sample Selection Into Account? Communications in Statistics - Simulatio,n and Computation, 43(10) 2739–2745

Gonçalves, G. M.; Gouveia, L.; Vaz Pato, M.

An improved decomposition-based heuristic to design a water distribution network for an irrigation system Annals of Operations Research, 219(1) 141–167

Gouveia, L.; Moura, P.; Ruthmair, M.; Sousa, A.

Spanning trees with variable degree bounds European Journal of Operational Research, 239(3) 830–841

Gouveia, L.; Leitner, M.; Ljubić, I.

Hop constrained Steiner trees with multiple root nodes European Journal of Operational Research, 236(1) 100–112

Harjunkoski, I., Maravelias, C. T.; Bongers, P.; Castro, P. M.; Engell, S.; Grossmann, I. E.; Hooker, J.; Méndez, C.; Sand, G.; Wassick, J.

Scope for Industrial Applications of Production Scheduling Models and Solution Methods Computers & Chemical Engineering, 62  161-193

Hinojosa, Y.; Puerto, J.; Saldanha-da-Gama, F.

A two-stage stochastic transportation problem with fixed handling costs and a priori selection of the distribution channels TOP, 22(3) 1123–1147

Juan, A. A.; Lourenço, H. R.; Mateo, M.; Luo, R.; Castella, Q.

Using Iterated Local Search for solving the Flow-Shop Problem: parametrization, randomization and parallelization issues International Transactions in Operational Research, 21(1) 103-126

Marques, I.; Captivo, M. E.;  Vaz Pato, M.

Scheduling elective surgeries in a Portuguese hospital using a genetic heuristic Operations Research for Health Care, 3 (2) 59-72

Martins P.; Ladrón A.; Ramalhinho H.

Maximum Cut-Clique Problem: ILS Heuristics and a Data Analysis Application International Transactions in Operational Research, 22(5) 775-809

Melo, M. T.; Nickel, S.; Saldanha-da-Gama, F.

An efficient heuristic approach for a multi-period logistics network redesign problem TOP, 22(1) 80–108

Scholz, Teresa; Lopes, V. V.; Estanqueiro, A.

A cyclic time-dependent Markov Process to model daily patterns in wind turbine power production Energy, 67  557-568

 

Book Chapters 

 

Fortz, B.; Gouveia, L.; Moniz, M.

Mathematical programming models for traffic engineering in Ethernet networks implementing the multiple spanning tree protocol Combinatorial optimization 242–254, Lecture Notes in Comput. Sci. 8596, Springer, Cham, 2014

Ramalhinho, H.

A Polynomial Algorithm for a Special Case of the One-Machine Scheduling Problem with Time-Lags Engineering Optimization 2 397-401, Taylor & Francis Group, London, 2014

 

2013

 

Papers in international journals 

Authors Title Journal Pages

Botton, Q.; Fortz, B.; Gouveia, Luis.; Poss, M.

Benders decomposition for the hop-constrained survivable network design problem

INFORMS J. Comput., 25(1)

13–26

Carvajal, R.; Constantino, M.; Goycoolea, M.; Vielma, J. P.; Weintraub, A.

Imposing connectivity constraints in forest planning models

Opererations Research, 61(4)

824–836

Castro, P. M.; Sun, L., Harjunkoski, L.

Resource-Task Network Formulations for Industrial Demand Side Management of a Steel Plant Ind. Eng. Chem. Res., 52(36) 13046-13058

Castro, P. M.; Teles, J. P.

Comparison og global optimization algorithms for the design of water-using networks Computers & Chemical Engineering 52  249-261

Cerveira, A.; Agra, A.; Bastos, F.; Gromicho, J.

A new Branch and Bound method for a discrete truss topology design problem Computational Optimization and Applications, 54(1) 163-187

Constantino, M; Klimentova, X.; Viana, A.; Rais, A.

New insights on integer-programming models for the kidney exchange problem European Journal of Operational Research, 231(1) 57–68

Gollowitzer, S.; Gouveia, L.; Ljubić, I.

Enhanced formulations and branch-and-cut for the two level network design problem with transition facilities European Journal of Operational Research, 225(2) 211–222

Gouveia, L.; Riera-Ledesma, J.; Salazar-González, J. J.

Reverse multistar inequalities and vehicle routing problems with a lower bound on the number of customers per route Networks, 61(4) 309–321

Gouveia, L.; Salazar-González, J. J.

Polynomial-time separation of Enhanced Reverse Multistar inequalities Opererations Research Letters, 41(3) 294–297

Gouveia, L.; Voß, S.

Editorial [Special issue: INOC 2011 Conference, June 13–16, 2011, Hamburg, Germany] Networks, 61(2) 87–88

Grasas, A.; Caceres-Cruz, J.; Lourenço, H. R.; Juan, A. A.; Roca, M.

Vehicle routing in a Spanish distribution company: Saving using a savings-based heuristic OR Insight, 26(3 191-202
Juan, A. A.; Faulin, J.; Ferrer, A.; Lourenço, H. R.; Barrios, B. MIRHA: multi-start biased randomization of heuristics with adaptive lo valign="top"cal search for solving non-smooth routing problems TOP 21(1) 109–132
Kolodziej, S.; Castro, P. M.; Grossmann, I. E. Global optimization of bilinear programs with a multiparametric disaggregation technique J. Global Optim. 57(4)  
Mesquita, M.; Moz, M.; Paias, A.; Vaz Pato, M. A decomposition approach for the integrated vehicle-crew-roster problem with days-off pattern European Journal of Operational Research, 229(2) 318–331
Mesquita, M.; Murta, A.; Paias, A.; Wise, L. TSP with Multiple Time-Windows and Selective Cities International Conference on Computational Logistics   
Mouriño, H.; Barão, M. I. Maximum Likelihood Estimation of the VAR(1) Model Parameters with Missing Observations Mathematical Problems in Engineering 2013 13 pp
Neto, T.; Constantino, M.; Martins, I.; Pedroso, J. P. A branch-and-bound procedure for forest harvest scheduling problems addressing aspects of habitat availability International Transactions in Operational Research, 20(6) 795-822
Pascoal, M.; Captivo, M. E.; Clímaco, J.; Laranjeira, A. Bicriteria path problem minimizing the cost and minimizing the number of labels 4OR 11(3) 275–294
Respício, A.; Moz, M.Vaz Pato M. Enhanced genetic algorithms for a bi-objective bus driver rostering problem: a computational study Int. Trans. Oper. Res. 20(4) 443–470