  | Anthony, M., Boros, E., Crama, Y., & Gruber, A. (2017). Quadratic reformulations of nonlinear binary optimization problems. Mathematical Programming, 162, 115-144. doi:10.1007/s10107-016-1032-4  Peer Reviewed verified by ORBi |
 | Crama, Y., & Hammer, P. L. (2011). Boolean Functions: Theory, Algorithms, and Applications. New York, United States - New York: Cambridge University Press. |
 | Chapelle, A., Crama, Y., Hübner, G., & Peters, J.-P. (2008). Practical methods for measuring and managing operational risk in the financial sector: A clinical study. Journal of Banking and Finance, 32, 1049-1061. doi:10.1016/j.jbankfin.2007.09.017 Peer Reviewed verified by ORBi |
 | Crama, Y., & Van de Klundert, J. (1997). Cyclic scheduling of identical parts in a robotic cell. Operations Research, 45, 952-965. doi:10.1287/opre.45.6.952 Peer Reviewed verified by ORBi |
 | Crama, Y., & Ibaraki, T. (1988). Cause-effect relationships and partially defined Boolean functions. Annals of Operations Research, 16, 299-326. doi:10.1007/BF02283750 Peer Reviewed verified by ORBi |
 | Clausen, J. V., Crama, Y., Lusby, R., Rodriguez-Heck, E., & Ropke, S. (May 2024). Solving unconstrained binary polynomial programs with limited reach: Application to low autocorrelation binary sequences. Computers and Operations Research, 165, 106586. doi:10.1016/j.cor.2024.106586 Peer Reviewed verified by ORBi |
 | Clavijo Lopez, C. J., Crama, Y., Pironet, T., & Semet, F. (2024). Multi-period distribution networks with purchase commitment contracts. European Journal of Operational Research, 312 (2), 556-572. doi:10.1016/j.ejor.2023.07.007 Peer Reviewed verified by ORBi |
 | Crama, Y. (03 July 2023). Graph and optimization models for kidney exchanges [Paper presentation]. GO XI - International Colloquium on Graphs and Optimization 2023, Spa, Belgium. |
 | Baratto, M., Crama, Y., Pedroso, J. P., & Viana, A. (2023). Local stability in kidney exchange programs. ORBi-University of Liège. https://orbi.uliege.be/handle/2268/304478. |
 | Crama, Y. (2023). Gérer, c'est décider [Paper presentation]. Université des Champs, Vielsalm, Belgium. |
 | Crama, Y. (09 January 2023). Old and new algorithms for polynomial unconstrained optimization problems in binary variables [Paper presentation]. NUMA Study Day 2023, Gand, Belgium. |
 | Baratto, M., & Crama, Y. (2023). Cycle Selections. Discrete Applied Mathematics, 335, 4-24. doi:10.1016/j.dam.2022.07.005 Peer Reviewed verified by ORBi |
 | Baratto, M., Crama, Y., Pedroso, J. P., & Ana, V. (13 September 2022). Locally Stable Exchanges - Conference ORBEL36 [Paper presentation]. ORBEL36, Gent, Belgium. |
 | Crama, Y., Elloumi, S., Lambert, A., & Rodriguez-Heck, E. (2022). Quadratization and convexification in polynomial binary optimization. ORBi-University of Liège. https://orbi.uliege.be/handle/2268/295296. |
Crama, Y., Grabisch, M., & Martello, S. (Eds.). (July 2022). Surveys in Operations Research VI (Invited Surveys from "4OR", 2018-2020). Annals of Operations Research, 314 (1). Peer Reviewed verified by ORBi |
  | Clavijo Lopez, C., Crama, Y., & Pironet, T. (2022). Multi-period distribution networks with stochastic demand and capacity commitment contracts. (Version 1). ORBi-University of Liège. https://orbi.uliege.be/handle/2268/291964. |
 | Smeulders, B., Bartier, V., Crama, Y., & Spieksma, F. C. R. (2022). Recourse in Kidney Exchange Programs. INFORMS Journal on Computing, 34 (2), 1191-1206. doi:10.1287/ijoc.2021.1099 Peer Reviewed verified by ORBi |
 | Sepulchre, E., Pittie, G., Stojkovic, V., Haesbroeck, G., Crama, Y., Schyns, M., Paridaens, H., de Marchin, J., Degesves, S., Biemar, C., Boccar, S., Senterre, J.-M., & Minon, J.-M. (2022). Covid-19: contribution of clinical characteristics and laboratory features for early detection of patients with high risk of severe evolution. Acta Clinica Belgica, 77 (2), 261-267. doi:10.1080/17843286.2020.1822078 Peer Reviewed verified by ORBi |
Crama, Y. (10 November 2021). Kidney exchanges and cycle selections [Paper presentation]. Séminaire interne, Grenoble, France. |
Crama, Y. (November 2021). Everything you always wanted to know about the editorial process [Paper presentation]. Operations seminars. |
Crama, Y. (September 2021). Recherche opérationnelle et industrie. Bibliothèque Tangente, 75, p. 90-93. |
Crama, Y., Hübner, G., Leruth, L., & Renneboog, L. (2021). Identifying Ultimate Beneficial Owners: A risk-based approach to improving the transparency of international financial flows. ORBi-University of Liège. https://orbi.uliege.be/handle/2268/263411. |
 | Baratto, M., & Crama, Y. (11 June 2021). Selecting directed cycles: a polyhedral study [Paper presentation]. ECCO 2021. |
 | Baratto, M., & Crama, Y. (21 May 2021). Selecting directed cycles, a polyhedral study [Paper presentation]. Seminar in the Combinatorial Optimization group at the Eindhoven University of Technology. |
 | Baratto, M., & Crama, Y. (20 April 2021). Selecting directed cycles: a polyhedral study [Poster presentation]. 3rd IMA and OR Society Conference on Mathematics of Operational Research (Online event). |
 | Crama, Y., Grabisch, M., & Martello, S. (2021). 4OR comes of age: Editorial note. 4OR: A Quarterly Journal of Operations Research, 19, 1-13. doi:10.1007/s10288-021-00475-0 Peer Reviewed verified by ORBi |
 | Crama, Y. (2020). Quand les maths nous transportent [Paper presentation]. Pi Day 2020. |
 | Boros, E., Crama, Y., & Rodriguez Heck, E. (2020). Compact quadratizations for pseudo-Boolean functions. Journal of Combinatorial Optimization, 39, 687-707. doi:10.1007/s10878-019-00511-0 Peer Reviewed verified by ORBi |
 | Paquay, C., Crama, Y., & Pironet, T. (2020). Recovery management for a dial-a-ride system with real-time disruptions. European Journal of Operational Research, 280, 253-269. doi:10.1016/j.ejor.2019.08.006 Peer Reviewed verified by ORBi |
 | Dokka, T., Crama, Y., Duvillié, G., & Spieksma, F. C. R. (2019). Column generation algorithms for the wafer-to-wafer integration problem. ORBi-University of Liège. https://orbi.uliege.be/handle/2268/241939. |
 | François, V., Arda, Y., & Crama, Y. (December 2019). Adaptive large neighborhood search for multi-trip vehicle routing with time windows. Transportation Science, 53 (6), 1706-1730. doi:10.1287/trsc.2019.0909 Peer Reviewed verified by ORBi |
 | Crama, Y. (September 2019). Of (hyper)graphs and functions of binary variables: Old and recent results [Paper presentation]. Tribute to Frédéric Maffray, Grenoble, France. |
 | Crama, Y., Gendron, B., & Ries, B. (May 2019). Tenth International Colloquium on Graphs and Optimization (GO X), 2016. Discrete Applied Mathematics, 261, 1-354. doi:10.1016/j.dam.2019.02.026 Peer Reviewed verified by ORBi |
 | Crama, Y., & Pironet, T. (04 January 2019). Vehicle allocation problem with uncertain transportation requests over a multi-period rolling horizon. Logistics Research, 12 (1), 1-22. doi:10.23773/2019_1 Peer Reviewed verified by ORBi |
 | Smeulders, B., Crama, Y., & Spieksma, F. C. R. (2019). Revealed preference theory: An algorithmic outlook. European Journal of Operational Research, 272, 803-815. doi:10.1016/j.ejor.2018.04.026 Peer Reviewed verified by ORBi |
 | Paquay, C., Crama, Y., & Pironet, T. (2019). A reactive algorithm for a dial-a-ride problem with real-time disruptions [Paper presentation]. ORBEL 33, Hasselt, Belgium. |
 | Brauner, N., Crama, Y., Delaporte, E., Jost, V., & Libralesso, L. (2019). Do balanced words have a short period? Theoretical Computer Science, 793, 169-180. doi:10.1016/j.tcs.2019.06.017 Peer Reviewed verified by ORBi |
 | Buchheim, C., Crama, Y., & Rodriguez Heck, E. (2019). Berge-acyclic multilinear 0-1 optimization problems. European Journal of Operational Research, 273, 102-107. doi:10.1016/j.ejor.2018.07.045 Peer Reviewed verified by ORBi |
 | Bartier, V., Smeulders, B., Crama, Y., & Spieksma, F. C. R. (2019). Recourse in Kidney Exchange Programs. ORBi-University of Liège. https://orbi.uliege.be/handle/2268/231958. |
Crama, Y., Grabisch, M., & Martello, S. (Eds.). (December 2018). Seven Surveys in Operations Research. Annals of Operations Research, 271 (1). doi:10.1007/s10479-018-3036-3 Peer Reviewed verified by ORBi |
François, V., Arda, Y., & Crama, Y. (July 2018). Large neighborhood search approaches for multi-trip vehicle routing with time windows and driver shifts [Paper presentation]. EURO 2018 - 29th European Conference on Operational Research, Valencia, Spain. |
Crama, Y. (16 June 2018). Reformulations of nonlinear binary optimization problems [Paper presentation]. ECCO XXX1 - 31th Conference of the European Chapter on Combinatorial Optimization, Fribourg, Switzerland. |
Crama, Y. (14 May 2018). Quadratizations in nonlinear binary optimization: new results [Paper presentation]. Mathematics seminar, Koper, Slovenia. |
Crama, Y. (2018). Optimiser la logistique: Slogan ou réalité? [Paper presentation]. Optimiser le transport et la distribution en 2018: slogan ou réalité?. |
 | Crama, Y., Grabisch, M., & Martello, S. (2018). Editorial: Sweet sixteen. 4OR: A Quarterly Journal of Operations Research, 1-13. doi:10.1007/s10288-018-0373-7 |
Crama, Y. (2018). Author spotlight. INFORMS Journal Highlights. |
Crama, Y. (March 2018). Reformulations of nonlinear binary optimization problems [Paper presentation]. Maastricht University Graduate School of Business and Economics Seminar. |
Rodriguez Heck, E., & Crama, Y. (01 February 2018). Linear and quadratic reformulation techniques for nonlinear 0-1 optimization problems [Paper presentation]. 32nd annual conference of the Belgian Operational Research Society (ORBEL 32), Liege, Belgium. |
 | Boros, E., Crama, Y., & Rodriguez Heck, E. (04 January 2018). Quadratizations of symmetric pseudo-Boolean functions: sub-linear bounds on the number of auxiliary variables [Paper presentation]. International Symposium on Artificial Intelligence and Mathematics (ISAIM 2018), Fort Lauderdale, United States. |
 | Paquay, C., Crama, Y., & Pironet, T. (2018). Dial-a-ride with real-time disruptions [Paper presentation]. 29th European Conference on Operational Research, Valencia, Spain. |
 | Crama, Y., Rezaei Sadrabadi, M., Savelsbergh, M., & Van Woensel, T. (2018). Stochastic Inventory Routing for Perishable Products. Transportation Science, 52 (3), 526-546. doi:10.1287/trsc.2017.0799 Peer Reviewed verified by ORBi |
 | Paquay, C., Crama, Y., & Pironet, T. (2018). Dial-a-ride with real-time disruptions [Paper presentation]. OR 2018, Bruxelles, Belgium. |
Crama, Y., Goossens, D., Leus, R., Schyns, M., & Spieksma, F. (Eds.). (December 2017). Special issue: Twelfth Workshop on Models and Algorithms for Planning and Scheduling Problems (MAPSP 2015). Journal of Scheduling, 20 (6), 543-711. doi:10.1007/s10951-017-0548-7 Peer Reviewed verified by ORBi |
Rodriguez Heck, E., & Crama, Y. (17 July 2017). Linearization and quadratization techniques for 0-1 optimization problems [Paper presentation]. 21st conference of the International Federation of Operational Research Societies. |
Rodriguez Heck, E., & Crama, Y. (13 July 2017). A class of valid inequalities for multilinear 0-1 optimization problems [Paper presentation]. 15th EUROPT Workshop on Advances in Continuous Optimization. |
François, V., Arda, Y., & Crama, Y. (10 July 2017). Neighborhood search approaches for a multi-trip vehicle routing problem with time windows [Paper presentation]. VeRoLog 2017 - Annual Workshop of the EURO Working Group on Vehicle Routing and Logistics optimization, Amsterdam, Netherlands. Editorial reviewed |
Rodriguez Heck, E., & Crama, Y. (21 March 2017). A class of valid inequalities for multilinear 0-1 optimization problems [Poster presentation]. Women in Optimization Workshop, ALOP, Universität Trier. |
Rodriguez Heck, E., & Crama, Y. (13 March 2017). A class of valid inequalities for multilinear 0-1 optimization problems [Paper presentation]. Boolean Seminar Liblice 2017. |
 | Crama, Y., & Rodriguez Heck, E. (2017). A class of valid inequalities for multilinear 0-1 optimization problems. Discrete Optimization, 25, 28-47. doi:10.1016/j.disopt.2017.02.001 Peer Reviewed verified by ORBi |
| Anthony, M., Boros, E., Crama, Y., & Gruber, A. (2017). Quadratic reformulations of nonlinear binary optimization problems. Mathematical Programming, 162, 115-144. doi:10.1007/s10107-016-1032-4 Peer Reviewed verified by ORBi |
 | François, V., Arda, Y., & Crama, Y. (2017). Adaptive large neighborhood search for multi-trip vehicle routing with time windows. ORBi-University of Liège. https://orbi.uliege.be/handle/2268/216747. |
Rodriguez Heck, E., & Crama, Y. (14 December 2016). A class of valid inequalities for multilinear 0-1 optimization problems [Paper presentation]. VOCAL Optimization Conference: Advanced Algorithms, Esztergom, Hungary. |
Crama, Y. (14 December 2016). Quadratic reformulations of nonlinear binary optimization problems [Paper presentation]. VOCAL Optimization Conference: Advanced Algorithms, Esztergom, Hungary. |
 | François, V., Arda, Y., Crama, Y., & Laporte, G. (01 December 2016). Large neighborhood search for multi-trip vehicle routing. European Journal of Operational Research, 255 (2), 422-441. doi:10.1016/j.ejor.2016.04.065 Peer Reviewed verified by ORBi |
 | Crama, Y., Grabisch, M., & Martello, S. (December 2016). Editorial: A brand new cheating attempt: a case of usurped identity. 4OR: A Quarterly Journal of Operations Research, 14, 333-336. doi:10.1007/s10288-016-0329-8 |
 | Talla Nobibon, F., Cherchye, L., Crama, Y., Demuynck, T., De Rock, B., & Spieksma, F. C. R. (November 2016). Revealed preference tests of collectively rational consumption behavior: formulations and algorithms. Operations Research, 64 (6), 1197–1216. doi:10.1287/opre.2016.1527 Peer Reviewed verified by ORBi |
 | Crama, Y. (05 September 2016). Balanced words and related concepts: applications and complexity issues [Paper presentation]. 16th Mons Theoretical Computer Science Days. |
Crama, Y. (17 August 2016). Reformulations of nonlinear binary optimization problems [Paper presentation]. STOR-i Seminar, Lancaster, United Kingdom. |
François, V., Arda, Y., & Crama, Y. (06 July 2016). Neighborhood search approaches for multi-trip vehicle routing problems [Paper presentation]. EURO 2016 - 28th European Conference on Operational Research, Poznan, Poland. Editorial reviewed |
Crama, Y. (July 2016). Quadratic reformulations of nonlinear binary optimization problems [Paper presentation]. GO X - International Colloquium on Graphs and Optimization 2016, Rigi, Switzerland. |
Rodriguez Heck, E., & Crama, Y. (02 June 2016). A class of valid inequalities for multilinear 0-1 optimization problems [Poster presentation]. 18th Conference on Integer Programming and Combinatorial Optimization (IPCO XVIII), Liège, Belgium. |
 | François, V., Arda, Y., Crama, Y., & Laporte, G. (10 February 2016). Recherche à voisinage large pour le problème de tournées de véhicules à voyages multiples [Paper presentation]. ROADEF 2016 - 17e Conférence Annuel de la Société Française de Recherche Opérationnelle et d'Aide à la Décision, Compiègne, France. Editorial reviewed |
Rodriguez Heck, E., & Crama, Y. (28 January 2016). Tightening linearizations of non-linear binary optimization problems [Paper presentation]. ORBEL30: 30th annual conference of the Belgian Operational Research Society, Louvain-la-Neuve, Belgium. |
 | Anthony, M., Boros, E., Crama, Y., & Gruber, A. (2016). Quadratization of symmetric pseudo-Boolean functions. Discrete Applied Mathematics, 203, 1-12. doi:10.1016/j.dam.2016.01.001 Peer Reviewed verified by ORBi |
 | François, V., Arda, Y., Crama, Y., & Laporte, G. (2015). Large neighborhood search for multi-trip vehicle routing. (Version 30/11/2015). ORBi-University of Liège. https://orbi.uliege.be/handle/2268/187309. |
Crama, Y. (29 October 2015). Revealed preference tests of collectively rational consumption behavior [Paper presentation]. COMEX Seminars, ULB, Belgium. |
Crama, Y. (23 October 2015). Quadratizations of pseudo-Boolean functions [Paper presentation]. Ordered Structures in Games and Decisions, Paris, France. |
Küçükaydın, H., Arda, Y., Crama, Y., & Michelini, S. (15 July 2015). Branch-and-Price Based Matheuristics for a Vehicle Routing Problem with Time Windows and Variable Service Start Time [Paper presentation]. EURO 2015 - 27th European Conference on Operational Research, Glasgow, United Kingdom. Editorial reviewed |
Rodriguez Heck, E., & Crama, Y. (13 July 2015). Strengthening linear reformulations of pseudo-Boolean optimization problems [Paper presentation]. 27th European Conference on Operational Research, Glasgow, United Kingdom. |
Crama, Y., Anthony, M., Boros, E., & Gruber, A. (July 2015). Quadratization of pseudo-Boolean functions [Paper presentation]. EURO 2015 - 27th European Conference on Operational Research, Glasgow, United Kingdom. |
Rodriguez Heck, E., & Crama, Y. (23 June 2015). Linearization and quadratization approaches for non-linear 0-1 optimization [Paper presentation]. Oberseminar Diskrete Optimierung, Dortmund, Germany. |
 | Michelini, S., Arda, Y., Crama, Y., & Küçükaydin, H. (10 June 2015). Exact and Heuristic Solution Methods for a VRP with Time Windows and Variable Service Start Time [Paper presentation]. VeRoLog 2015 - Annual Workshop of the EURO Working Group on Vehicle Routing and Logistics optimization, Vienna, Austria. Editorial reviewed |
 | Pironet, T., & Crama, Y. (01 June 2015). Multi-period vehicle assignment problem with stochastic transportation order availability [Paper presentation]. Odysseus 2015 Sixth International Workshop on Freight Transportation and Logistics, Ajaccio, France. |
 | Marchetti-Spaccamela, A., Crama, Y., Goossens, D., Leus, R., Schyns, M., & Spieksma, F. (Eds.). (2015). Proceedings of the 12th Workshop on Models and Algorithms for Planning and Scheduling Problems. KU Leuven. |
Crama, Y. (29 April 2015). Functions of binary variables [Paper presentation]. Decision Making and Social Choice. |
 | Crama, Y. (2015). Quand les maths nous transportent [Paper presentation]. Matinée scientifique. |
 | Michelini, S., Arda, Y., Crama, Y., & Küçükaydin, H. (05 February 2015). Exact and Heuristic Solution Methods for a VRP with Time Windows and Variable Service Start Time [Paper presentation]. ORBEL29 - 29th annual conference of the Belgian Operational Research Society. Editorial reviewed |
 | Crama, Y., Rezaei Sadrabadi, M., & Van Woensel, T. (2015). A branch-and-price algorithm for 2-period vehicle routing problems. ORBi-University of Liège. https://orbi.uliege.be/handle/2268/175663. |
Rodriguez Heck, E., & Crama, Y. (04 December 2014). Quadratizations of pseudo-Boolean functions [Paper presentation]. COMEX Project Annual Meeting 2014. |
 | Crama, Y. (20 November 2014). Boolean Functions for Classification: Logical Analysis of Data [Paper presentation]. DA2PL 2014 from Multicriteria Decision Aid to Preference Learning, Paris, France. |
 | Crama, Y. (2014). Quand les maths nous transportent [Paper presentation]. Matinée scientifique. |
Crama, Y. (28 October 2014). Revealed preference tests of collectively rational consumption behavior [Paper presentation]. Graphs and decisions, Luxembourg, Luxembourg. |
 | Arda, Y., Crama, Y., Kronus, D., Pironet, T., & Van Hentenryck, P. (August 2014). Multi-period vehicle loading with stochastic release dates. EURO Journal on Transportation and Logistics, 3 (2), 93-119. doi:10.1007/s13676-013-0035-z Peer Reviewed verified by ORBi |
 | Crama, Y., & Rodriguez Heck, E. (2014). Short Prime Quadratizations of Cubic Negative Monomials. ORBi-University of Liège. https://orbi.uliege.be/handle/2268/170649. |
Arda, Y., Crama, Y., François, V., & Laporte, G. (17 July 2014). Specific Multi-trip Operators for Vehicle Routing Problems [Paper presentation]. IFORS 2014 - 20th Conference of the International Federation of Operational Research Societies, Barcelona, Spain. Editorial reviewed |
 | Küçükaydın, H., Arda, Y., & Crama, Y. (2014). Optimization of the service start time for an elementary shortest path problem with time windows. ORBi-University of Liège. https://orbi.uliege.be/handle/2268/170446. |
Crama, Y. (09 July 2014). Approximation algorithms for multi-dimensional vector assignment problems [Paper presentation]. GO IX - Graphs and Optimization, Sirmione, Italy. |
Arda, Y., Crama, Y., François, V., & Laporte, G. (25 June 2014). Vehicle routing problems with multiple trips: using specific local search operators [Paper presentation]. VeRoLog 2014 - Annual Workshop of the EURO Working Group on Vehicle Routing and Logistics optimization, Oslo, Norway. Editorial reviewed |
Arda, Y., Kucukaydin, H., & Crama, Y. (12 June 2014). Service Start Time Optimization in Elementary Shortest Path Problems with Resource Constraints [Paper presentation]. Graphes et Optimisation Mathémathique (GOM) Seminars, Brussels, Belgium. |
Crama, Y. (07 May 2014). About almost periodic sequences of integers and related concepts [Paper presentation]. Discrete Mathematics Seminar. |
Crama, Y., & Rodriguez Heck, E. (25 March 2014). Compact quadratizations of nonlinear binary optimization problems [Paper presentation]. Belgian Mathematical Programming Workshop, Belgium. |
Arda, Y., Crama, Y., & Kucukaydin, H. (31 January 2014). An exact bi-directional dynamic programming algorithm for an elementary shortest path problem with variable service start time [Paper presentation]. ORBEL 28 - 28th annual conference of the Belgian Operational Research Society, Mons, Belgium. Editorial reviewed |
Crama, Y. (30 January 2014). Quadratic reformulations of nonlinear binary optimization problems [Paper presentation]. ORBEL 28 - Conference of the Belgian Operational Research Society, Mons, Belgium. |
Crama, Y. (06 January 2014). Quadratic reformulations of nonlinear binary optimization problems [Paper presentation]. 13th International Symposium on Artificial Intelligence and Mathematics, Fort Lauderdale, United States. |
 | Dokka, T., Crama, Y., & Spieksma, F. C. R. (2014). Multi-Dimensional Vector Assignment Problems. Discrete Optimization, 14, 111-125. doi:10.1016/j.disopt.2014.08.005 Peer Reviewed verified by ORBi |
 | Arda, Y., Crama, Y., & François, V. (08 July 2013). Neighborhood Search Approaches for a Vehicle Routing Problem with Multiple Trips and Driver Shifts [Paper presentation]. VeRoLog 2013 - Annual Workshop of the EURO Working Group on Vehicle Routing and Logistics optimization. Editorial reviewed |
Kucukaydin, H., Arda, Y., & Crama, Y. (08 July 2013). Optimization of Service Start Time for an Elementary Shortest Path Problem [Paper presentation]. VeRoLog 2013 - Annual Workshop of the EURO Working Group on Vehicle Routing and Logistics optimization, Southampton, United Kingdom. Editorial reviewed |
Crama, Y. (04 July 2013). Approximation Algorithms for Multi-Dimensional Vector Assignment Problems [Paper presentation]. EURO INFORMS 2013 - 26th European Conference on Operational Research, Rome, Italy. |
 | Bay, M., Crama, Y., & Rigo, P. (01 July 2013). A global optimization method for naval structure op- timization [Paper presentation]. EURO INFORMS 2013 - 26th European Conference on Operational Research, Roma, Italy. |
Crama, Y. (01 July 2013). Quadratic reformulations of nonlinear binary optimization problems [Paper presentation]. EURO INFORMS 2013 - 26th European Conference on Operational Research, Rome, Italy. |
Crama, Y. (20 June 2013). Quadratization of pseudo-Boolean functions [Paper presentation]. LSE Discrete Maths and Game Theory Seminar, Londres, United Kingdom. |
 | Dokka, T., Crama, Y., & Spieksma, F. C. R. (2013). Approximation Algorithms for Multi-Dimensional Vector Assignment Problems. ORBi-University of Liège. https://orbi.uliege.be/handle/2268/147977. |
Kucukaydin, H., Arda, Y., & Crama, Y. (02 May 2013). An elementary shortest path problem with variable service start time [Paper presentation]. 10th International Conference on Computational Management Science, Montréal, Canada. |
 | Crama, Y. (April 2013). Quadratization of symmetric pseudo-Boolean functions [Paper presentation]. Boolean Seminar Liblice 2013, Liblice, Czechia. |
 | Arda, Y., Crama, Y., & François, V. (13 February 2013). An adaptive large neighborhood search for a vehicle routing problem with multiple trips and driver shifts [Paper presentation]. ROADEF 2013 - 14e Congrès Annuel de la Société Française de Recherche Opérationnelle at d'Aide à la Décision, Troyes, France. Editorial reviewed |
Arda, Y., Crama, Y., & Kucukaydin, H. (08 February 2013). Elementary shortest path problems for a multiple-trip vehicle routing problem [Paper presentation]. ORBEL 27 - 27th annual conference of the Belgian Operational Research Society, Kortrijk, Belgium. Editorial reviewed |
 | Arda, Y., Crama, Y., & François, V. (07 February 2013). An adaptive large neighborhood search for a vehicle routing problem with multiple trips and driver shifts [Paper presentation]. ORBEL 27 - 27th annual conference of the Belgian Operational Research Society, Kortrijk, Belgium. Editorial reviewed |
Crama, Y. (February 2013). Méthodes Booléennes en recherche opérationnelle [Paper presentation]. ROADEF 2013, Troyes, France. |
Crama, Y. (January 2013). Algorithmes d'approximation pour les problèmes d'affectation multidimensionnels [Paper presentation]. Séminaire de recherche opérationnelle, Grenoble, France. |
 | Crama, Y., & Leruth, L. (2013). Power indices and the measurement of control in corporate structures. International Game Theory Review, 15, 1340017. doi:10.1142/S0219198913400173 Peer Reviewed verified by ORBi |
Talla Nobibon, F., Cherchye, L., Crama, Y., Demuynck, T., De Rock, B., & Spieksma, F. (09 November 2012). Algorithms for testing the collective consumption model [Paper presentation]. Ordered Structures in Games and Decision, Paris, France. |
Crama, Y. (09 June 2012). Boolean Methods and Logical Analysis of Data [Paper presentation]. International Workshop on Three Approaches to Data Mining, Thuwal, Saudi Arabia. |
Arda, Y., Crama, Y., Kronus, D., Pironet, T., & Van Hentenryck, P. (24 May 2012). Multiperiod vehicle loading with stochastic release dates [Paper presentation]. Odysseus 2012, Mykonos, Greece. |
 | Arda, Y., Crama, Y., Kucukaydin, H., & Talla Nobibon, F. (2012). A Rich Vehicle Routing Problem with Multiple Trips and Driver Shifts [Paper presentation]. VeRoLog 2012 - Annual Workshop of the EURO Working Group on Vehicle Routing and Logistics optimization, Bologna, Italy. Editorial reviewed |
 | Crama, Y. (November 2011). Boolean methods in operations research and related areas [Paper presentation]. INFORMS Annual Meeting, Charlotte, NC, United States. |
Crama, Y., Leruth, L., & Su Wang. (June 2011). Control and Voting Power in Complex Shareholding Networks [Paper presentation]. Tenth Cologne-Twente workshop on graphs and combinatorial optimization, Frascati, Italy. |
 | Amand, G., Arda, Y., Crama, Y., Kronus, D., & Pironet, T. (07 April 2011). Multiperiod vehicle loading optimization with stochastic supply [Paper presentation]. UGR GreatRoad: Working Group HEC-ULg meeting, Liège, Belgium. |
 | Boros, E., Crama, Y., De Werra, D., Hansen, P., & Maffray, F. (2011). The Mathematics of Peter L. Hammer (1936-2006): Graphs, Optimization, and Boolean Models. In E. Boros, Y. Crama, D. De Werra, P. Hansen, F. Maffray, ... B. Simeone (Eds.), The Mathematics of Peter L. Hammer (1936-2006): Graphs, Optimization, and Boolean Models (pp. 1-18). Springer. doi:10.1007/s10479-011-0913-4 |
| Crama, Y., & Hammer, P. L. (2011). Boolean Functions: Theory, Algorithms, and Applications. New York, United States - New York: Cambridge University Press. |
Bair, J., Crama, Y., Henry, V., & Justens, D. (2011). Modèles mathématiques en gestion. Paris, France: Cassini et POLE. |
 | Boros, E., Crama, Y., de Werra, D., Hansen, P., Maffray, F., & Simeone, B. (Eds.). (2011). The Mathematics of Peter L. Hammer (1936-2006): Graphs, Optimization, and Boolean Models. Annals of Operations Research, 188. Peer Reviewed verified by ORBi |
 | Boros, E., Crama, Y., Hammer, P. L., Ibaraki, T., Kogan, A., & Makino, K. (2011). Logical Analysis of Data: Classification with justification. Annals of Operations Research, 188, 33-61. doi:10.1007/s10479-011-0916-1 Peer Reviewed verified by ORBi |
Crama, Y., & Chevalier, P. (October 2010). Operations Research for the steel industry : the art of combining science and knowledge [Paper presentation]. International Workshop on Optimization, Saint-Denis, France. |
 | Bay, M., Crama, Y., Langer, Y., & Rigo, P. (September 2010). Space and time allocation in a shipyard assembly hall. Annals of Operations Research, 179 (1), 57-76. doi:10.1007/s10479-008-0461-8 Peer Reviewed verified by ORBi |
 | Crama, Y., & Gultekin, H. (June 2010). Throughput optimization in two-machine flowshops with flexible operations. Journal of Scheduling, 13 (3), 227-243. doi:10.1007/s10951-008-0096-2 Peer Reviewed verified by ORBi |
Crama, Y. (06 May 2010). Challenging Combinatorial Problems [Paper presentation]. Francqui Chair Lecture, Leuven, Belgium. |
Crama, Y. (29 April 2010). Functions of Binary Variables and Nonlinear 0-1 Optimization [Paper presentation]. Francqui Chair Lecture, Leuven, Belgium. |
Crama, Y. (22 April 2010). High Multiplicity Scheduling Problems and Just-In-Time Scheduling [Paper presentation]. Francqui Chair Lecture, Leuven, Belgium. |
Crama, Y. (01 April 2010). Combinatorial Optimization Models in Automated Manufacturing [Paper presentation]. Francqui Chair Lecture, Leuven, Belgium. |
Crama, Y. (25 March 2010). Logical Analysis of Data and Classification [Paper presentation]. Francqui Chair Lecture, Leuven, Belgium. |
Crama, Y. (18 March 2010). Control and Voting Power in Shareholding Networks [Paper presentation]. Francqui Chair Lecture, Leuven, Belgium. |
Crama, Y. (15 March 2010). Models for Decision Making: From Applications to Mathematics... and Back [Paper presentation]. Francqui Chair Inaugural Lecture, Leuven, Belgium. |
 | Amand, G., Arda, Y., Crama, Y., Kronus, D., & Pironet, T. (29 January 2010). Vehicle loading optimization with stochastic supply [Paper presentation]. ORBEL 24 - 24th annual conference of the Belgian Operational Research Society, Liège, Belgium. Editorial reviewed |
 | Schyns, M., Crama, Y., & Hübner, G. (2010). Optimal selection of a portfolio of options under Value-at-Risk constraints: a scenario approach. Annals of Operations Research, 181, 683-708. doi:10.1007/s10479-009-0636-y Peer Reviewed verified by ORBi |
 | Crama, Y., & Hammer, P. L. (Eds.). (2010). Boolean Models and Methods in Mathematics, Computer Science, and Engineering. New York, United States - New York: Cambridge University Press. |
Pironet, T., Crama, Y., Arda, Y., Schyns, M., Rosso, V., Kronus, D., Wauthelet, Y., Lange, J.-C., & Tran, V. (2009). RAPPORT DE RECHERCHE SUR UNE APPLICATION DE GESTION DE LA COLLABORATION DU SERVICE EXPÉDITION DU CHARGEUR AVEC LE TRANSPORTEUR. -. |
 | Amand, G., Arda, Y., Crama, Y., Kronus, D., & Pironet, T. (07 July 2009). Vehicle loading optimization with stochastic supply [Paper presentation]. EURO 2009 - 23rd European Conference on Operational Research, Bonn, Germany. Editorial reviewed |
 | Bay, M., Crama, Y., & Rigo, P. (2009). Local search heuristics for large-scale discrete structural optimization with expensive black-box evaluations. Liège, Belgium: ULg - Université de Liège. |
Pironet, T., Crama, Y., Arda, Y., Schyns, M., Rosso, V., & Kronus, D. (2009). RAPPORT INTERNE : REVUE DE LITTERATURE SUR LA GESTION DES RESSOURCES RÉUTILISABLES ET DES MÉTHODES D’OPTIMISATION. RW. |
 | Schyns, M., Hübner, G., & Crama, Y. (2009). Alternative to the Mean-Variance Asset Allocation Analysis: A Scenario Methodology for Portfolio Selection. In G. N. Gregoriou (Ed.), Stock Market Volatility (pp. 231-254). Boca Raton, United States: Taylor & Francis Group. doi:10.1201/9781420099553-18 |
Pironet, T., Crama, Y., Arda, Y., Schyns, M., Rosso, V., & Kronus, D. (2009). RAPPORT DE RECHERCHE SUR L’OPTIMISATION DU ROUTAGE ET DU CHARGEMENT DE VEHICULES. |
 | Crama, Y., Leruth, L., & Wang, S. (2009). A Markov chain model of power indices in corporate structures. ORBi-University of Liège. https://orbi.uliege.be/handle/2268/178393. |
 | Arda, Y., Crama, Y., & Pironet, T. (26 February 2008). Un problème de chargement/déchargement profitable d'une flotte de véhicules soumise à des fenêtres de temps [Paper presentation]. ROADEF 08 - 9e Congrès de la Société Française de Recherche Opérationnelle et d’Aide à la Décision, Clermont-Ferrand, France. Editorial reviewed |
 | Arda, Y., Crama, Y., & Pironet, T. (18 January 2008). A profitable pickup and delivery problem with time windows [Paper presentation]. ORBEL 22 - 22nd annual conference of the Belgian Operational Research Society, Brussels, Belgium. Editorial reviewed |
 | Bair, J., & Crama, Y. (2008). Modèles et données dans l’univers économique. In D. Justens (Ed.), Attentes d'un modèle (pp. 45-61). Liège, Belgium: Céfal. |
 | Boros, E., Brualdi, R., Crama, Y., & Hoffman, A. (2008). Geršgorin variations III: On a theme of Brualdi and Varga. Linear Algebra and its Applications, 428, 14-19. doi:10.1016/j.laa.2007.10.003 Peer Reviewed verified by ORBi |
 | Adem, J., Crama, Y., Gochet, W., & Spieksma, F. C. R. (2008). Counting and enumerating aggregate classifiers. Discrete Applied Mathematics, 156 (3), 2459-2468. doi:10.1016/j.dam.2008.01.017 Peer Reviewed verified by ORBi |
| Chapelle, A., Crama, Y., Hübner, G., & Peters, J.-P. (2008). Practical methods for measuring and managing operational risk in the financial sector: A clinical study. Journal of Banking and Finance, 32, 1049-1061. doi:10.1016/j.jbankfin.2007.09.017 Peer Reviewed verified by ORBi |
 | Crama, Y., Moonen, L. S., Spieksma, F. C., & Talloen, E. (16 October 2007). The tool switching problem revisited. European Journal of Operational Research, 182 (2), 952-957. doi:10.1016/j.ejor.2006.07.028 Peer Reviewed verified by ORBi |
 | Crama, Y., & Leruth, L. (01 May 2007). Control and voting power in corporate networks: Concepts and computational aspects. European Journal of Operational Research, 178 (3), 879-893. doi:10.1016/j.ejor.2006.02.020 Peer Reviewed verified by ORBi |
 | Bay, M., Crama, Y., Richir, T., & Rigo, P. (2007). A mixed-integer heuristic for the structural optimization of a cruise ship. In COMPIT 2007 , Cortona, Italy. Peer reviewed |
 | Boros, E., Crama, Y., & Simeone, B. (April 2007). Peter Ladislaw Hammer (1936-2006). 4OR: A Quarterly Journal of Operations Research, 5 (1), 1-4. doi:10.1007/s10288-007-0034-8 |
 | Brauner, N., Crama, Y., Grigoriev, A., & van de Klundert, J. (February 2007). Multiplicity and complexity issues in contemporary production scheduling. Statistica Neerlandica, 61 (1), 75-91. doi:10.1111/j.1467-9574.2007.00362.x Peer Reviewed verified by ORBi |
 | Langer, Y., Bay, M., Crama, Y., Bair, F., Caprace, J.-D., & Rigo, P. (July 2005). Optimization of Surface Utilization Using Heuristic Approaches. Ship Technology Research, 52 (3), 141-147. Peer Reviewed verified by ORBi |
 | Brauner, N., Crama, Y., Grigoriev, A., & van de Klundert, J. (May 2005). A framework for the complexity of high-multiplicity scheduling problems. Journal of Combinatorial Optimization, 9 (3), 313-323. doi:10.1007/s10878-005-1414-7 Peer Reviewed verified by ORBi |
 | Langer, Y., Bay, M., Crama, Y., Bair, F., Caprace, J.-D., & Rigo, P. (2005). Optimization of Surface Allocation using Heuristic Approaches. In COMPIT 2005 , Hambourg, Germany (Edt V Bertram, pp. 9). Peer reviewed |
 | Schyns, M., Crama, Y., & Hübner, G. (2005). Grafting Information in Scenario Trees: Application to Option Prices. ORBi-University of Liège. https://orbi.uliege.be/handle/2268/117269. |
 | Alexe, G., Alexe, S., Crama, Y., Foldes, S., Hammer, P. L., & Simeone, B. (30 December 2004). Consensus algorithms for the generation of all maximal bicliques. Discrete Applied Mathematics, 145 (1 Sp. Iss. SI), 11-21. doi:10.1016/j.dam.2003.09.004 Peer Reviewed verified by ORBi |
 | Crama, Y., Pascual, R., & Torres, A. (01 December 2004). Optimal procurement decisions in the presence of total quantity discounts and alternative product recipes. European Journal of Operational Research, 159 (2), 364-378. doi:10.1016/j.ejor.2003.08.021 Peer Reviewed verified by ORBi |
 | Brauner, N., & Crama, Y. (05 January 2004). The maximum deviation just-in-time scheduling problem. Discrete Applied Mathematics, 134 (1-3), 25-50. doi:10.1016/S0166-218X(03)00222-1 Peer Reviewed verified by ORBi |
 | Crama, Y., & Schyns, M. (01 November 2003). Simulated annealing for complex portfolio selection problems. European Journal of Operational Research, 150 (3), 546-571. doi:10.1016/S0377-2217(02)00784-1 Peer Reviewed verified by ORBi |
 | Crama, Y., Leruth, L., Renneboog, L., & Urbain, J.-P. (2003). Corporate control concentration measurement and firm performance. In J. A. Batten & T. A. Fetherston (Eds.), Social Responsibility: Corporate Governance Issues (pp. 123-149). Elsevier. Peer reviewed |
Brauner, N., Crama, Y., Finke, G., Lemaire, P., & Wynants, C. (2003). Approximation algorithms for the design of SDH/SONET networks. RAIRO: Recherche Opérationnelle, 37 (4, OCT-DEC), 235-247. doi:10.1051/ro:2004003 Peer Reviewed verified by ORBi |
 | Crama, Y., van de Klundert, J., & Spieksma, F. C. (15 November 2002). Production planning problems in printed circuit board assembly. Discrete Applied Mathematics, 123 (1-3), 339-361. doi:10.1016/S0166-218X(01)00345-6 Peer Reviewed verified by ORBi |
 | Crama, Y., & Hammer, P. L. (2002). Pseudo-Boolean optimization. In M. G. C. Resende & P. M. Pardalos (Ed.), Handbook of Applied Optimization (pp. 445-450). Oxford University Press. Peer reviewed |
 | Crama, Y., Pochet, Y., & Wera, Y. (2001). A discussion of production planning approaches in the process industry. ORBi-University of Liège. https://orbi.uliege.be/handle/2268/217621. |
Boros, E., Crama, Y., Ekin, O., Hammer, P. L., Ibaraki, T., & Kogan, A. (2000). Boolean normal forms, shellability and reliability computations. SIAM Journal on Discrete Mathematics, 13, 212-226. doi:10.1137/S089548019732180X Peer Reviewed verified by ORBi |
 | Crama, Y., Kats, V., Van de Klundert, J., & Levner, E. (2000). Cyclic scheduling in robotic flowshops. Annals of Operations Research, 96, 97-124. doi:10.1023/A:1018995317468 Peer Reviewed verified by ORBi |
 | Crama, Y., & Van de Klundert, J. (1999). Worst-case performance of approximation algorithms for tool management problems. Naval Research Logistics, 46, 445-462. doi:10.1002/(SICI)1520-6750(199908)46:5<445::AID-NAV1>3.0.CO;2-R Peer Reviewed verified by ORBi |
 | Crama, Y., & Van de Klundert, J. (1999). Cyclic scheduling in 3-machine robotic flow shops. Journal of Scheduling, 2, 35-54. doi:10.1002/(SICI)1099-1425(199901/02)2:1<35::AID-JOS15>3.0.CO;2-J Peer Reviewed verified by ORBi |
 | Crama, Y., Ekin, O., & Hammer, P. L. (1997). Variable and term removal from Boolean formulae. Discrete Applied Mathematics, 75, 217-230. doi:10.1016/S0166-218X(96)00028-5 Peer Reviewed verified by ORBi |
 | Crama, Y., Dupont, L., & Finke, G. (1997). Recherche opérationnelle et gestion de la production. Nouvelles de la Science et des Technologies, 15, 37-45. |
 | Crama, Y. (1997). Combinatorial optimization models for production scheduling in automated manufacturing systems. European Journal of Operational Research, 99, 136-153. doi:10.1016/S0377-2217(96)00388-8 Peer Reviewed verified by ORBi |
Crama, Y., & Oosten, M. (1997). The polytope of block diagonal matrices and complete bipartite partitionings. Networks, 30, 263-282. doi:10.1002/(SICI)1097-0037(199712)30:4<263::AID-NET4>3.0.CO;2-H Peer Reviewed verified by ORBi |
| Crama, Y., & Van de Klundert, J. (1997). Cyclic scheduling of identical parts in a robotic cell. Operations Research, 45, 952-965. doi:10.1287/opre.45.6.952 Peer Reviewed verified by ORBi |
 | Crama, Y., & Van de Klundert, J. (1997). Robotic flowshop scheduling is strongly NP-complete. In W. K. Klein Haneveld, O. J. Vrieze, ... L. C. M. Kallenberg (Eds.), Ten Years LNMB (pp. 277-286). Amsterdam, Netherlands: CWI. Peer reviewed |
 | Crama, Y., Flippo, O. E., Van de Klundert, J., & Spieksma, F. C. R. (1997). The assembly of printed circuit boards: A case with multiple machines and multiple board types. European Journal of Operational Research, 98, 457-472. doi:10.1016/S0377-2217(96)00228-7 Peer Reviewed verified by ORBi |
| Crama, Y., & Ibaraki, T. (1997). Hitting or avoiding balls in Euclidean space. Annals of Operations Research, 69, 47-64. doi:10.1023/A:1018901600127 Peer Reviewed verified by ORBi |
 | Crama, Y., & Oosten, M. (1996). Models for machine-part grouping in cellular manufacturing. International Journal of Production Research, 34, 1693-1713. doi:10.1080/00207549608904991 Peer Reviewed verified by ORBi |
Crama, Y., Oerlemans, A. G., & Spieksma, F. C. R. (1996). Production Planning in Automated Manufacturing. (Second, revised and enlarged edition. (First edition: 1994)). Springer Science & Business Media B.V. doi:10.1007/978-3-642-80270-6 |
 | Crama, Y., Flippo, O. E., Van de Klundert, J., & Spieksma, F. C. R. (1996). The component retrieval problem in printed circuit board assembly. International Journal of Flexible Manufacturing Systems, 8, 287-312. doi:10.1007/BF00170016 Peer Reviewed verified by ORBi |
 | Crama, Y., & Spieksma, F. C. R. (1996). Scheduling jobs of equal length: complexity, facets and computational results. Mathematical Programming, 72, 207-227. doi:10.1007/BF02592090 Peer Reviewed verified by ORBi |
 | Crama, Y., & Mazzola, J. B. (1995). Valid inequalities and facets for a hypergraph model of the nonlinear knapsack and FMS part-selection problems. Annals of Operations Research, 58, 99-128. doi:10.1007/BF02032163 Peer Reviewed verified by ORBi |
Crama, Y., Kolen, A. W. J., & Pesch, E. (1995). Local search in combinatorial optimization. In P. J. Braspenning, F. Thuijsman, ... A. J. M. M. Weijters (Eds.), Artificial Neural Networks : An Introduction to ANN Theory and Practice (pp. 157-174). Berlin Heidelberg, Germany: Springer-Verlag. doi:10.1007/BFb0027029 Peer reviewed |
 | Crama, Y., Hansen, P., & Jaumard, B. (1995). Complexity of product positioning and ball intersection problems. Mathematics of Operations Research, 20, 885-894. doi:10.1287/moor.20.4.885 Peer Reviewed verified by ORBi |
 | Bandelt, H.-J., Crama, Y., & Spieksma, F. C. R. (1994). Approximation algorithms for multi-dimensional assignment problems with decomposable costs. Discrete Applied Mathematics, 49, 25-50. doi:10.1016/0166-218X(94)90199-6 Peer Reviewed verified by ORBi |
Crama, Y., Oerlemans, A. G., & Spieksma, F. C. R. (1994). Production Planning in Automated Manufacturing. (First edition. (Second, revised and enlarged edition: 1996)). Berlin, Heidelberg - New York, Germany: Springer-Verlag. |
 | Crama, Y., & Mazzola, J. B. (1994). On the strength of relaxations of multidimensional knapsack problems. INFOR : Information systems and operational research, 32, 219-225. doi:10.1080/03155986.1994.11732252 Peer Reviewed verified by ORBi |
 | Boros, E., Crama, Y., Hammer, P. L., & Saks, M. (1994). A complexity index for satisfiability problems. SIAM Journal on Computing, 23, 45-49. doi:10.1137/S0097539792228629 Peer Reviewed verified by ORBi |
 | Crama, Y., & Van de Klundert, J. (1994). Approximation algorithms for integer covering problems via greedy column generation. RAIRO: Recherche Opérationnelle, 28, 283-302. Peer Reviewed verified by ORBi |
 | Crama, Y., & Oerlemans, A. G. (1994). A column generation approach to job grouping for flexible manufacturing systems. European Journal of Operational Research, 78, 58-80. doi:10.1016/0377-2217(94)90122-8 Peer Reviewed verified by ORBi |
 | Crama, Y., Kolen, A. W. J., Oerlemans, A. G., & Spieksma, F. C. R. (1994). Minimizing the number of tool switches on a flexible machine. International Journal of Flexible Manufacturing Systems, 6, 33-54. doi:10.1007/BF01324874 Peer Reviewed verified by ORBi |
Bels, V., & Crama, Y. (1994). Quantitative-analysis of the courtship and mating-behavior in the loggerhead musk turtle Sternotherus-Minor (Reptilia, Kinosternidae) with comments on courtship behavior in turtles. Copeia, 1994 (3), 676-684. doi:10.2307/1447183 Peer Reviewed verified by ORBi |
 | Crama, Y. (1993). Concave extensions for nonlinear 0-1 maximization problems. Mathematical Programming, 61, 53-60. doi:10.1007/BF01582138 Peer Reviewed verified by ORBi |
 | Crama, Y., Loebl, M., & Poljak, S. (1992). A decomposition of strongly unimodular matrices into incidence matrices of digraphs. Discrete Mathematics, 102, 143-147. doi:10.1016/0012-365X(92)90048-K Peer Reviewed verified by ORBi |
 | Crama, Y., & Spieksma, F. C. R. (1992). The complexity of scheduling short tasks with few starting times. ORBi-University of Liège. https://orbi.uliege.be/handle/2268/138861. |
 | Boros, E., Crama, Y., & Hammer, P. L. (1992). Chvátal cuts and odd cycle inequalities in quadratic 0-1 optimization. SIAM Journal on Discrete Mathematics, 5, 163-177. doi:10.1137/0405014 Peer Reviewed verified by ORBi |
 | Crama, Y., & Spieksma, F. C. R. (1992). Approximation algorithms for three-dimensional assignment problems with triangle inequalities. European Journal of Operational Research, 60, 273-279. doi:10.1016/0377-2217(92)90078-N Peer Reviewed verified by ORBi |
Crama, Y., Hansen, P., & Jaumard, B. (1991). Detection of spurious states of neural networks. IEEE Transactions on Neural Networks, 2, 165-168. doi:10.1109/72.80307 Peer Reviewed verified by ORBi |
 | Crama, Y., Hammer, P. L., & Ibaraki, T. (1990). Packing, covering and partitioning problems with strongly unimodular constraint matrices. Mathematics of Operations Research, 15, 258-267. doi:10.1287/moor.15.2.258 Peer Reviewed verified by ORBi |
 | Boros, E., Crama, Y., & Hammer, P. L. (1990). Polynomial-time inference of all valid implications for Horn and related formulae. Annals of Mathematics and Artificial Intelligence, 1, 21-32. doi:10.1007/BF01531068 Peer Reviewed verified by ORBi |
 | Boros, E., Crama, Y., & Hammer, P. L. (1990). Upper-bounds for quadratic 0-1 maximization. Operations Research Letters, 9, 73-79. doi:10.1016/0167-6377(90)90044-6 Peer Reviewed verified by ORBi |
 | Crama, Y., Hansen, P., & Jaumard, B. (1990). The basic algorithm for pseudo-Boolean programming revisited. Discrete Applied Mathematics, 29, 171-185. doi:10.1016/0166-218X(90)90142-Y Peer Reviewed verified by ORBi |
 | Benzaken, C., Crama, Y., Duchet, P., Hammer, P. L., & Maffray, F. (1990). More characterizations of triangulated graphs. Journal of Graph Theory, 14 (4), 413-422. doi:10.1002/jgt.3190140404 Peer Reviewed verified by ORBi |
 | Crama, Y., Kolen, A. W. J., Oerlemans, A. G., & Spieksma, F. C. R. (1990). Throughput rate optimization in the automated assembly of printed circuit boards. Annals of Operations Research, 26, 455-480. Peer Reviewed verified by ORBi |
 | Crama, Y. (1989). Recognition problems for special classes of polynomials in 0-1 variables. Mathematical Programming, 44, 139-155. doi:10.1007/BF01587085 Peer Reviewed verified by ORBi |
Crama, Y., & Hammer, P. L. (1989). Recognition of quadratic graphs and adjoints of bidirected graphs. In G. S. Bloom, R. L. Graham, ... J. Malkevitch (Eds.), Combinatorial Mathematics : Proceedings of the Third International Conference (pp. 140-149). New York Academy of Sciences. doi:10.1111/j.1749-6632.1989.tb22445.x Peer reviewed |
 | Crama, Y., & Hammer, P. L. (1989). Bimatroidal independence systems. Zeitschrift für Operations-Research, 33, 149-165. doi:10.1007/BF01423645 Peer Reviewed verified by ORBi |
 | Crama, Y., Hammer, P. L., & Holzman, R. (1989). A characterization of a cone of pseudo-Boolean functions via supermodularity-type inequalities. In P. Kall, J. Kohlas, W. Popp, ... C. A. Zehnder (Eds.), Quantitative Methoden in den Wirtschaftswissenschaften (pp. 53-55). Berlin Heidelberg, Germany: Springer-Verlag. doi:10.1007/978-3-642-74306-1 Peer reviewed |
| Crama, Y., & Ibaraki, T. (1988). Cause-effect relationships and partially defined Boolean functions. Annals of Operations Research, 16, 299-326. doi:10.1007/BF02283750 Peer Reviewed verified by ORBi |
 | Crama, Y., Hammer, P. L., Jaumard, B., & Simeone, B. (1987). Product form parametric representation of the solutions to a quadratic boolean equation. RAIRO: Recherche Opérationnelle, 21, 287-306. doi:10.1051/ro/1987210402871 Peer Reviewed verified by ORBi |
 | Crama, Y. (1987). Dualization of regular boolean functions. Discrete Applied Mathematics, 16, 79-85. doi:10.1016/0166-218X(87)90056-4 Peer Reviewed verified by ORBi |
 | Crama, Y., Hammer, P. L., & Ibaraki, T. (1986). Strong unimodularity for matrices and hypergraphs. Discrete Applied Mathematics, 15, 221-239. doi:10.1016/0166-218X(86)90044-2 Peer Reviewed verified by ORBi |
 | Crama, Y., Defourny, J., & Gazon, J. (1984). Structural decomposition of multipliers in input-output or social accounting matrix analysis. Économie Appliquée, 37, 215-222. Peer reviewed |
Crama, Y. (1983). Analysis of STEM-like solutions to multi-objective programming problems. In R. Hartley, L. C. Thomas, D. J. White, ... S. French (Ed.), Multi-Objective Decision Making (pp. 207-213). London, United Kingdom: Academic Press. Peer reviewed |
Crama, Y., & Hansen, P. (1983). An introduction to the ELECTRE research programme. In P. Hansen, Essays and Surveys on Multiple Criteria Decision Making (pp. 31-42). Berlin Heidelberg, Germany: Springer-Verlag. doi:10.1007/978-3-642-46473-7_4 |
Crama, Y., & Pestieau, P. (1982). Transmission and distribution of wealth with a variable number of children. Economics Letters, 10 (1-2), 193-196. doi:10.1016/0165-1765(82)90136-7 Peer reviewed |
