| Effective algorithm and heuristic for the generalized assignment problem S Haddadi, H Ouzia European Journal of Operational Research 153 (1), 184-190, 2004 | 71 | 2004 |
| Simple Lagrangian heuristic for the set covering problem S Haddadi European Journal of Operational Research 97 (1), 200-204, 1997 | 71 | 1997 |
| An effective Lagrangian heuristic for the generalized assignment problem S Haddadi, H Ouzia INFOR: Information Systems and Operational Research 39 (4), 351-356, 2001 | 28 | 2001 |
| Lagrangian decomposition based heuristic for the generalized assignment problem S Haddadi INFOR: Information Systems and Operational Research 37 (4), 392-402, 1999 | 27 | 1999 |
| A note on the NP–hardness of the consecutive block minimization problem. S Haddadi International Transactions in Operational Research 9 (6), 2002 | 26 | 2002 |
| Consecutive block minimization is 1.5-approximable S Haddadi, Z Layouni Information Processing Letters 108 (3), 132-135, 2008 | 24 | 2008 |
| Simulated annealing for the uncapacitated exam scheduling problem M Cheraitia, S Haddadi International Journal of Metaheuristics 5 (2), 156-170, 2016 | 22 | 2016 |
| Hybridising plant propagation and local search for uncapacitated exam scheduling problems M Cheraitia, S Haddadi, A Salhi International Journal of Services and Operations Management 32 (4), 450-467, 2019 | 15 | 2019 |
| Simple, yet fast and effective two-phase method for nurse rostering F Guessoum, S Haddadi, E Gattal American Journal of Mathematical and Management Sciences 39 (1), 1-19, 2020 | 13 | 2020 |
| Polynomial-time local-improvement algorithm for consecutive block minimization S Haddadi, S Chenche, M Cheraitia, F Guessoum Information Processing Letters 115 (6-8), 612-617, 2015 | 13 | 2015 |
| A two-phase heuristic for set covering S Haddadi, M Cheraitia, A Salhi International Journal of Mathematics in Operational Research 13 (1), 61-78, 2018 | 12 | 2018 |
| Benders decomposition for set covering problems: Almost satisfying the consecutive ones property S Haddadi Journal of Combinatorial Optimization 33 (1), 60-80, 2017 | 12 | 2017 |
| Three-phase method for nurse rostering S Haddadi International Journal of Management Science and Engineering Management 14 (3 …, 2019 | 11 | 2019 |
| Variable-fixing then subgradient optimization guided very large scale neighborhood search for the generalized assignment problem S Haddadi 4or 17 (3), 261-295, 2019 | 10 | 2019 |
| Plant propagation algorithm for nurse rostering S Haddadi International Journal of Innovative Computing and Applications 11 (4), 204-215, 2020 | 7 | 2020 |
| Algèbre linéaire dans Rn: théorie, algorithmes et complexité S Haddadi Hermes science publications, 2012 | 6 | 2012 |
| Hybridizing subgradient optimization and very large scale neighborhood search for nurse rostering S Haddadi, F Guessoum American Journal of Mathematical and Management Sciences 37 (4), 344-357, 2018 | 4 | 2018 |
| The transportation problem revisited—preprocessing before using the primal–dual algorithm S Haddadi, O Slimani Journal of the Operational Research Society 63 (7), 1006-1009, 2012 | 4 | 2012 |
| Combining data reduction, MIP solver and iterated local search for generalized assignment S Haddadi, E Gattal International Journal of Management Science and Engineering Management 17 (2 …, 2022 | 2 | 2022 |
| Iterated local search for consecutive block minimization S Haddadi Computers & Operations Research 131, 105273, 2021 | 2 | 2021 |
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