Fatima Guessoum- PHD student
- PhD Student at University of Guelma
Fatima Guessoum
- PHD student
- PhD Student at University of Guelma
About
3
Publications
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Introduction
Current institution
Publications
Publications (3)
The nurse rostering problem is to create a day-today shift assignment of each nurse subject to a predefined set of constraints. Based on simple ideas, a two-phase method is suggested. The first phase consists of applying a generic variable-fixing heuristic. As a result, a very small and sparse-reduced problem is obtained. In the second phase, the r...
The nurse rostering problem (NRP) requires the production of a roster for a set of nurses subjected to a predefined set of requirements. NRP is computationally intractable for general instances. This article presents a hybrid algorithm that integrates a very large scale neighborhood (VLSN) search metaheuristic within a subgradient optimization fram...
A block of consecutive ones (bco for short) in a binary -matrix is any maximal sequence of consecutive ones occuring in the same row. We consider the Consecutive Block Minimization (CBM) problem in which the aim is to minimize the number of bco's by permuting the matrix's columns. The paper introduces a pair of -sized local search neighborhoods in...
