Mohamed El Merouani

Mohamed El Merouani
Abdelmalek Essaâdi University | UAE · Department of Mathematics

Enseignant -Chercheur

About

48
Publications
20,924
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105
Citations
Additional affiliations
April 2003 - November 2020
Abdelmalek Essaâdi University
Position
  • Professor (Full)
Education
September 1991 - September 1995
University of Granada
Field of study
  • Statstics and O. R.

Publications

Publications (48)
Article
The berth allocation problem is one of the main concerns of port operators at a container terminal. In this paper, the authors study the berth allocation problem at the strategic level commonly known as the strategic berth template problem (SBTP). This problem aims to find the best berth template for a set of calling ships accepted to be served at...
Article
Full-text available
The appearance of the COVID-19 virus has a huge impact on the economy, where many factories and logistics flows are affected. With global supply chains severely disrupted, production and consumption centers around the world are beginning to be affected by the situation. our study tried to measure the impact of this pandemic on the containers transp...
Preprint
Full-text available
Recently, the use of drone is growing in importance in several fields. Their capacity toavoid traffic jam and operate without a human pilot, make it the perfect method tohome delivery in natural disasters and pandemics. This paper addresses the dronedelivery problem inside Covid-19 outbreak area where quarantine status has beenapplied. This problem...
Preprint
Full-text available
Nowadays, there are many problems in the Enterprise Resource Planning (ERP) implemented in the majority of hospitals in Morocco such as the difficulty of adaptation by the different users, the lack of several functionalities, errors that block the daily work, etc. All these problems require frequent modifications in the code, which implies a high e...
Preprint
Full-text available
The Hospital Information Systems (HIS) in Morocco take a central place in the process of patient care. An approach is made to analyze the current situation of the HIS within the institutions in order to bring an integral and generic vision, allowing the judicious articulation of the business and IT layers. Currently, the Enterprise Resource Plannin...
Conference Paper
Full-text available
Optimization of Transshipment Operations: Simulation of the APM Terminal/Tanger Med Port Case Hajar ABOUS PhD. Student University of Abdelmalek Essaâdi-Morocco, E-mail address: hajar.abous@gmail.com Mhamed HAMICHE Professor at University of Abdelmalek Essaâdi-Morocco, E-mail address: hamiche2020@gmail.com Mohamed El MEROUANI Professor at Un...
Article
Full-text available
The Hospital Information Systems (HIS) in Morocco take a central place in the process of patient care. An approach is made to analyze the current situation of the HIS within the institutions in order to bring an integral and generic vision, allowing the judicious articulation of the business and IT layers. Currently, the Enterprise Resource Plannin...
Article
Full-text available
Nowadays, there are many problems in the Enterprise Resource Planning (ERP) implemented in the majority of hospitals in Morocco such as the difficulty of adaptation by the different users, the lack of several functionalities, errors that block the daily work, etc. All these problems require frequent modifications in the code, which implies a high...
Article
Full-text available
Research on predicting financial distress is still an ongoing topic. Artificial neural networks (ANNs) models are good candidates to model financial distress due to their abilities for detecting complex patterns. In this context, this study looked at the performance of advanced cuckoo search algorithm to seek optimum weights of the feedforward neur...
Article
Full-text available
Decide when and where allocate incoming ships at a container terminal is among the main problem confronted by port operators. This problem often called " the Berth Allocation Problem (BAP)".In this work, we realize an analytical study on the major planning models presented in the literature for the berth allocation problem, namely dynamic and discr...
Article
Full-text available
t: The Berth Allocation Problem (BAP) is one of the most important operational logistic problems encountered in a container terminal. It aims to assign vessels to berthing areas along the quay and it depends generally on two main factors the type of ships arrival (static or dynamic) and the type of berth space (discrete, continuous or hybrid). In t...
Article
Full-text available
During the past two decades, there has been an increase on maritime freight traffic particularly in container flow. Thus, the Berth Allocation Problem (BAP) can be considered among the primary optimization problems encountered in port terminals. In this paper, we address the Dynamic Berth Allocation Problem (DBAP) in a conventional layout terminal...
Article
Full-text available
We focus our study on Inventory Routing Problem (IRP), one of the most important issues treated which dates back more than 30 years and is a well-known NP-hard problem and that involves the integration and coordination of inventory management and transportation. We consider a finite horizon where a fleet of capacitated homogeneous vehicles, housed...
Article
Full-text available
Integrating inventory control and distribution decisions poses a challenging problem for producers who try to optimize their supply chain successfully. Inventory Routing Problem, which is an NP-hard problem that appeared for more than thirty years, is a variant of the Vehicle Routing Problem that adds a problem of inventory management. The present...
Presentation
Full-text available
The performance of data warehouse is considered the main preoccupation for designers. It is based in first on the query execution time and the data access complexity. For that, the physical design is considered the most important task for data warehouse designers, including how to improve access to this data. Toward minimizing the query execution t...
Conference Paper
Full-text available
A data warehouse design is the most important task realized by administrators; going to production is a remarkable phase to test the data warehouse performance efficiency. Is known that hardware has developed in term of memory volume, speed and storage, but to minimize the execution time and the storage space still being the main objective for data...
Article
Full-text available
Homogeneous and non-HomogeneousBirth and Death Processes (BDPs) have a great importance for many fields of applied probability.For example,Non-homogeneous(See [3],[4]and[5]) versions of the Birth and Death Processes (NHBDPs) have an important role in queuing theory.  In this paper we consider Non-Homogeneous Birth and Death Processes (NHBDPs)(See...
Article
Full-text available
Breast cancer is the most common type of cancer in women and ranks first in the world. Every year, more than one million new cases are diagnosed worldwide, which represents 30% of new cases of female cancer in industrialized countries and around 14% in developing countries. The objective of our study was to detail an absorbing Markov chain model to...
Article
Full-text available
Designing a data warehouse is the most important task realized by the designer; going to production is considered a remarkable phase to test the data warehouse performance based on it design. Is known that hardware has developed in term of memory volume and speed, storage… but to minimize the execution time and the storage space still being the m...
Article
Full-text available
Designing a Data warehouse is the main mission done by DBA; Testing the data warehouse performance efficiency is also done while going to production. Actually, hardware has developed in term of memory volume, speed and storage, but for the specialists, the objective is still to minimize the execution time and the storage space. The paper shows that...
Article
Designing a data warehouse is the most important action done by the designer; it is a risk study of its performance as per it’s criticity while going to production. It Is known that hardware has developed in term of memory volume and speed, storage… but to minimize the execution time and the storage space still being the main objective for data war...
Article
Full-text available
Designing a data warehouse is the most important action done by the designer; it is a risk study of its performance as per it’s criticity while going to production. It Is known that hardware has developed in term of memory volume and speed, storage… but to minimize the execution time and the storage space still being the main objective for data w...
Conference Paper
Full-text available
The berth allocation planning (also known as the berth allocation problem) is classified among the major problems confronted in a port terminal. In this article we addressed this problem in the discrete dynamic case and we presented a mathematical model that minimizes the ship's total time stay in addition to the greenhouse gases emitted by ships d...
Conference Paper
Nowadays, Container terminals play an important role as members of a supply chain. As a consequence, the optimization of port operations is becoming highly needed in order to meet the requirements of the sector. For this reason, we focus our attention on the Berth Allocation Problem (BAP) considered as one of the most critical task encountered in c...
Conference Paper
We focus our study on Inventory Routing Problem (IRP), one of the most important issues treated which dates back more than 30 years and is a well-known NP-hard problem and that involves the integration and coordination of inventory management and transportation. We consider an infinite horizon where a fleet of capacitated homogeneous vehicles, hous...
Article
Full-text available
The design process is the most considered task of a data warehouse designer, this because of its performance criticality while going to production. Even if technology has developed in term of memory volume and speed, storage… the fact to minimize the execution time and the storage space still being a preoccupation for data warehousing specialists....
Article
Full-text available
The data warehouse designer should consider it effectiveness while the design process, this might be a part of it work by analyzing the update frequency of production databases. Actually, to decide in a small time interval becomes the most important concern for deciders, this because it's always depending on data warehouse refresh using the ETLs an...
Article
Full-text available
Due to the considerable growth in the worldwide container transportation, optimization of container terminal operations is becoming highly needed to rationalize the use of logistics resources. For this reason, we focus our study on the Quay Crane Scheduling Problem (QCSP), which is a core task of managing maritime container terminals. From this pla...
Article
Full-text available
The data warehouse designer should consider the effectiveness of the data query while the selection of relevant indexes and their combination with materialized views, this, because the data query is the only way to get this information from a data warehouse. The index selection is considered an NP-complete problem, because of the number of indexes...
Article
Full-text available
The quay crane scheduling problem is a core task of managing maritime container terminals. From this planning problem arise two decisions to be made: The first one concern the assignment of tasks to quay crane and the second one consist on finding the handling sequence of tasks such that the turnaround time of cargo vessels is minimized. In this pa...
Conference Paper
Full-text available
The data warehouse designer should consider the effectiveness of the data query while the selection of relevant indexes and their combination with materialized views, this, because the data query is the only way to get this information from a data warehouse. The index selection is considered an NP-complete problem, because of the number of indexes...
Conference Paper
The Quay Crane Scheduling Problem (QCSP) is one of the most important issues treated in container terminals because of its influence on the efficiency of port. The main goal behind this planning problem is to find the handling sequence of tasks at ship bays by a set of cranes assigned to a container vessel such that the time spent by vessels at ber...
Article
Full-text available
The quay crane scheduling problem is a core task of managing maritime container terminals. From this planning problem arise two decisions to be made: The first one concern the assignment of tasks to quay crane and the second one consist on finding the handling sequence of tasks such that the turnaround time of cargo vessels is minimized. In this pa...
Article
Full-text available
In the last decades, competition between port container terminals, especially between geographically close one, is rapidly increasing. To improve this competitiveness, terminal managers try to achieve rapid container vessel loading and unloading, that corresponds to a reduction of the time in port for vessels. In this paper, we focus our attention...
Article
Full-text available
The data query is the only way to get information from a data warehouse, for that, the designer should consider it effectiveness while the selection of relevant indexes and their combination with materialized views, also the index selection is known as a NP-complete problem, as per the number of indexes is exponential in the total attributes in the...
Article
Full-text available
The data query is the only way to get information from a data warehouse, for that, the designer should consider it effectiveness while the selection of relevant indexes and their combination with materialized views, also the index selection is known as a NP-complete problem, as per the number of indexes is exponential in the total attributes in the...
Article
Full-text available
A data warehouse designer should consider the effectiveness of data query, this depends on the selection of relevant indexes and their combination with the materialized views, note that the index selection is a NP-complete problem, because the number of indexes is exponential in the total number of attributes in the database, So, it is necessa...
Article
Full-text available
RÉSUMÉ Avec le développement des systèmes de décision en général et les entrepôts de données en particulier, il est devenu primordial d'avoir une visibilité de la conception de l'entrepôt des données avant sa création, et cela vu l'importance de l'entrepôt de données considéré comme la source unique des données donnant sens à la décision. Dans un s...
Article
Full-text available
Avec le développement des systèmes de décision en général et les entrepôts de données en particulier, il est devenu primordial d’avoir une visibilité de la conception de l’entrepôt des données avant sa création, et cela vu l’importance de l’entrepôt de données considéré comme la source unique des données donnant sens à la décision. Dans un système...
Conference Paper
Full-text available
Nous présentons la gestion des stocks de distribution avec une demande aléatoire. Nous proposons de modéliser cette demande par une loi de probabilité Log-normale. Après la justi cation du choix de cette loi, l'espérance et la variance de la demande sont calculées. L'objectif étant d'optimiser le coût total de stockage, le minimum de la quantit é c...
Conference Paper
Full-text available
Nous donnons dans ce travail une généralisation de la méthode proposée par Castillo, Sarabia et Hadi (1997) [1] à partir de la bivariante à la multi variante. Soit X=(X1, X2,…,Xr) un vecteur de variables aléatoires de fonction de distribution conjointe (CDF) F(X ;θ) ; ou θ est le paramètre vecteur-valué à estimer. Pour estimer θ en se basant sur un...
Conference Paper
Full-text available
Résumé : Nous présentons, dans ce travail, les versions stochastiques d'une série de modèles déterministes qui ont été appliqués, les années dernières, aux problèmes de diffusion déterministes de nouveaux produits en Marketing et de nouveautés technologiques en général, comme le modèle de Bass [1], le modèle de Mansfield [4], le modèle de Gompertz...

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Projects (6)
Project
- A Birth and Death Processes (BDPs) is a continuous-time Markov chain that counts the number of particles in a system over time, they are popular modeling tools in population evolution, used more particularly in biology, genetics, epidemiology, ecology, demography, physics, sociology, statistic...etc. - In this paper we will complete the resolution of the Chapman Kolmogorov's equation in the general case (See [1]), by giving the general form of the law of this processes.
Project
Solving the berth allocation Problem