Browsing by Author "Haouari, Mohamed"
Now showing items 1-20 of 27
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A hybrid simulation-optimization approach for the robust Discrete Time/Cost Trade-off Problem
Said, Samer S.; Haouari, Mohamed ( Elsevier , 2015 , Article)We investigate a stochastic Discrete Time/Cost Trade-off Problem. This multimode project scheduling problem, requires assigning modes to activities, and scheduling the activities so that the sum of the activities cost and ... -
A lifted compact formulation for the daily aircraft maintenance routing problem
Haouari, Mohamed; Shao, Shengzhi; Sherali, Hanif D. ( INFORMS Inst.for Operations Res.and the Management Sciences , 2013 , Article)Given a set of flights for a specific fleet type the aircraft routing problem (ARP) determines the flying sequence for each individual aircraft while incorporating specific considerations of minimum turn time maintenance ... -
A matheuristic for the robust integrated airline fleet assignment, aircraft routing, and crew pairing problem
Ben Ahmed, Mohamed; Hryhoryeva, Maryia; Hvattum, Lars Magnus; Haouari, Mohamed ( Elsevier , 2022 , Article)We address an integrated airline scheduling problem that combines three airline planning processes: fleet assignment, aircraft routing, and crew pairing. For a given daily flight schedule, the problem requires simultaneously ... -
A model for enhancing robustness of aircraft and passenger connections
Aloulou, Mohamed Ali; Haouari, Mohamed; Zeghal Mansour, Farah ( Elsevier , 2013 , Article)Airlines schedules are often subject to various uncontrollable factors that cause disruptions and delays. These delays not only constitute, for many passengers, the painful part of air travel, but also represent for airlines ... -
A novel model and decomposition approach for the integrated airline fleet assignment, aircraft routing, and crew pairing problem
Shao, Shengzhi; Sherali, Hanif D.; Haouari, Mohamed ( INFORMS Inst.for Operations Res.and the Management Sciences , 2017 , Article)Given a daily flight schedule and a set of aircraft fleets, the airline scheduling problem assigns individual aircraft and groups of crew to each flight based on specific considerations of aircraft maintenance requirements ... -
A particle swarm optimization approach for predicting the number of COVID-19 deaths
Haouari, Mohamed; Mhiri, Mariem ( Nature Research , 2021 , Article)The rapid spread of the COVID-19 pandemic has raised huge concerns about the prospect of a major health disaster that would result in a huge number of deaths. This anxiety was largely fueled by the fact that the severe ... -
A simulation-optimization approach for robust aircraft routing
Ben Ahmed, Mohamed; Mansour, Farah Zeghal; Haouari, Mohamed ( Universite de Lorraine , 2015 , Conference Paper)To mitigate the impact of unpredictable disruptions, airlines are seeking to pro-actively design schedules that incorporate some robustness features. In this paper, we propose a novel simulation-optimization approach using ... -
A simulation-optimization approach for the stochastic discrete cost multicommodity flow problem
Mejri, Imen; Layeb, Safa Bhar; Haouari, Mohamed; Mansour, Farah Zeghal ( Taylor and Francis Ltd. , 2020 , Article)This article addresses a variant of the Discrete Cost Multicommodity Flow (DCMF) problem with random demands, where a penalty is incurred for each unrouted demand. The problem requires finding a network topology that ... -
An assignment-based lower bound for a class of two-machine flow shop problems
Haouari, Mohamed; Kharbeche, Mohamed (2013 , Article)We present an assignment-based lower bound that is valid for a wide class of two-machine flow shop problems with a regular additive performance criterion. We provide empirical evidence that this new bound consistently ... -
An exact algorithm for the single machine problem with unavailability periods
Gharbi, Anis; Labidi, Mohamed; Haouari, Mohamed ( Inderscience Publishers , 2015 , Article)We investigate the single machine scheduling problem with job release dates and due dates, and multiple planned unavailability time periods. This problem arises in the context of machine scheduling with planned preventive ... -
An integrated approach for airline flight selection and timing, fleet assignment, and aircraft routing
Sherali, Hanif D.; Bae, Ki Hwan; Haouari, Mohamed ( INFORMS Inst.for Operations Res.and the Management Sciences , 2013 , Article)Airline profits critically depend on the nature and efficiency of service they provide and accrue from a complex planning process involving schedule design fleet assignment aircraft routing and crew scheduling which are ... -
A blockchain-based framework to optimize shipping container flows in the hinterland
Mhiri, M.; Mhiri, Mariem; Al-Yafi, Karim; Legros, Benjamin; Jouini, Oualid; Haouari, Mohamed... more authors ... less authors (2023 , Article)We address two interrelated issues affecting the hinterland portion of the maritime container supply chain: reducing the movement of empty containers and reducing empty trips by trucks carrying these containers. In this ... -
Combinatorial benders decomposition for the two-dimensional bin packing problem
Côté, Jean-François; Haouari, Mohamed; Iori, Manuel ( INFORMS Inst.for Operations Res.and the Management Sciences , 2021 , Article)The two-dimensional bin packing problem calls for packing a set of rectangular items into a minimal set of larger rectangular bins. Items must be packed with their edges parallel to the borders of the bins, cannot be ... -
Data of the design of solar assisted district cooling systems
Alghool, Dana; Elmekkawy, Tarek; Haouari, Mohamed; Elomri, Adel ( Elsevier , 2020 , Other)The collected datasets are relevant and related to Optimization of Design and Operation of Solar Assisted District Cooling Systems [1] paper. Part of the data is collected on the main and common components of the system. ... -
Enhanced compact models for the connected subgraph problem and for the shortest path problem in digraphs with negative cycles
Haouari, Mohamed; Maculan, Nelson; Mrad, Mehdi (2013 , Article)We investigate the minimum-weight connected subgraph problem. The importance of this problem stems from the fact that it constitutes the backbone of many network design problems having applications in several areas including ... -
Exact approaches for routing capacitated electric vehicles
Tahami, Hesamoddin; Rabadi, Ghaith; Haouari, Mohamed ( Elsevier , 2020 , Article)We investigate a variant of the standard Capacitated Vehicle Routing Problem (CVRP), where each vehicle is powered exclusively by electricity stored in its rechargeable battery. Consequently, each vehicle should visit not ... -
Green hydrogen for industrial sector decarbonization: Costs and impacts on hydrogen economy in qatar
Kazi, Monzure Khoda; Eljack, Fadwa; El-Halwagi, Mahmoud M.; Haouari, Mohamed ( Elsevier , 2021 , Article)This study focuses on the development of a strategic framework for the design of a hydrogen supply chain network (HSCN) mainly investigating the potential of industrial decarbonization and multi-sectors integration (i.e., ... -
Improved bounds for hybrid flow shop scheduling with multiprocessor tasks
Lahimer, Asma; Lopez, Pierre; Haouari, Mohamed (2013 , Article)In this paper, we investigate the problem of minimizing makespan in a multistage hybrid flow-shop scheduling with multiprocessor tasks. To generate high-quality approximate solutions to this challenging NP-hard problem, ... -
Integrated TOPSIS-COV approach for selecting a sustainable PET waste management technology: A case study in Qatar
Al-Thani, Nayla Ahmad; Al-Ansari, Tareq; Haouari, Mohamed ( Elsevier , 2022 , Article)In 2018, the global annual consumption of Polyethylene terephthalate (PET) bottles was approximately 27.64 million tons, with one million bottles sold worldwide every minute. Unmanaged PET bottles in the environment lead ... -
A novel proof of useful work for a blockchain storing transportation transactions
Haouari, Mohamed; Mhiri, Mariem; El-Masri, Mazen; Al-Yafi, Karim ( Elsevier , 2022 , Article)Proof-of-Work (PoW) is a common mechanism used to validate peer-to-peer transactions and maintain highly secured immutability of the blockchain. However, this mechanism has been criticized due to its inefficient use of ...