Papers by Carlos Alberto Nunes Cosenza
HAL (Le Centre pour la Communication Scientifique Directe), Feb 25, 2016
Airports are asset-intensive businesses that require a large amount of time to recover the signif... more Airports are asset-intensive businesses that require a large amount of time to recover the significant financial investments in specific infrastructure such as runways and terminals. Airports investors must perform strategic moves based on calculated risks before taking investment decisions. This communication puts forward a new approach for airport investment risk assessment. The approach takes explicitly into account the degree of uncertainty in activity levels prediction and proposes milestones for the different stages of the project for minimizing risk. Uncertainty is represented through fuzzy dual theory and risk management is performed using dynamic programming.
IFAC Proceedings Volumes, Sep 1, 2013
In this communication the ground handling fleet management problem at airports is considered with... more In this communication the ground handling fleet management problem at airports is considered with the aim of improving aircraft service at arrival and departure while the operational cost of the ground service fleets is taken into account. The complexity of the considered problem, as well as, operational considerations lead to propose an on-line decentralized management structure where the criticality of each aircraft demand for service is evaluated using a fuzzy formalism. Then after detailing the proposed collaborative scheme between ground handling fleet managers, airlines and airport authorities, a heuristic approach is proposed to solve each fleet assignment problem. A case study considering a large airport is discussed.
HAL (Le Centre pour la Communication Scientifique Directe), Apr 15, 2014
In this communication the ground handling fleet management problem at airports is considered with... more In this communication the ground handling fleet management problem at airports is considered with the aim of improving aircraft service at arrival and departure while the operational cost of the ground service fleets is taken into account. The complexity of the considered problem, as well as, operational considerations lead to propose an on-line decentralized management structure where the criticality of each aircraft demand for service is evaluated using a fuzzy formalism. Then after detailing the proposed collaborative scheme between ground handling fleet managers, airlines and airport authorities, a heuristic approach is proposed to solve each fleet assignment problem. A case study considering a large airport is discussed.
A Fuzzy approach for Airport Development Risk Assessment
HAL (Le Centre pour la Communication Scientifique Directe), Dec 13, 2014
Dual Numbers
Studies in fuzziness and soft computing, Oct 4, 2017
Fuzzy Dual Linear Matrix Inequalities
Studies in fuzziness and soft computing, Oct 4, 2017
LMI formalism has received an increasing acceptance for the formulation of feasible sets with cri... more LMI formalism has received an increasing acceptance for the formulation of feasible sets with crisp optimization problems. The new concepts proposed in this chapter are applied to the representation of fuzzy LMI domains using the introduced semi positive definiteness of fuzzy dual matrices.
Fuzzy Estimation of Distribution Matrices
Studies in fuzziness and soft computing, Oct 4, 2017
Origin-destination matrices play a central role in transportation and logistic planning while man... more Origin-destination matrices play a central role in transportation and logistic planning while many uncertainties must be taken into account when considering their estimation. In this chapter an approach is proposed to combine the entropy maximization approach with fuzzy modeling to get coherent intervals for trip distribution estimates based on structured uncertainties.
Fuzzy Dual Programming
Studies in fuzziness and soft computing, Oct 4, 2017
To tackle optimization problems with uncertain parameters and variables, this chapter considers t... more To tackle optimization problems with uncertain parameters and variables, this chapter considers the use of fuzzy dual numbers, vectors and matrices.
Fuzzy Dual Entropy and Applications
Studies in fuzziness and soft computing, Oct 4, 2017
In this chapter, fuzzy dual numbers and probabilities as well as fuzzy dual entropy are introduce... more In this chapter, fuzzy dual numbers and probabilities as well as fuzzy dual entropy are introduced. The classical entropy maximization approach for trip distribution prediction in transportation networks is reviewed and a new formulation is proposed using the fuzzy dual formalism. This leads to the consideration of a new mathematical programming problem involving the primal and dual parts of the trip distribution probabilities. The complexity of this problem is analyzed and a solution method is proposed. The new approach for trip distribution prediction is illustrated in the case of a small size transportation network and finally its main interests and difficulties are discussed.
Studies in fuzziness and soft computing, Oct 4, 2017
This chapter introduces briefly fuzzy sets and their relation with real intervals, giving way to ... more This chapter introduces briefly fuzzy sets and their relation with real intervals, giving way to fuzzy intervals and fuzzy numbers.
Fuzzy Dual Numbers
Studies in fuzziness and soft computing, Oct 4, 2017
In this chapter we introduce a special class of dual numbers, fuzzy dual numbers representative o... more In this chapter we introduce a special class of dual numbers, fuzzy dual numbers representative of symmetrical fuzzy numbers.
A novel approach for complex and subjective variable valuation in the COPPE-Cosenza fuzzy model applied to crude oil trading
Decision Analytics Journal
A Fuzzy Analysis Applied on Physical Commodity Market
SSRN Electronic Journal
Brazilian Journal of Development
A covid19 gerou uma crise mundial em vários setores, dentre eles podemos destacar o setor da educ... more A covid19 gerou uma crise mundial em vários setores, dentre eles podemos destacar o setor da educação. A solução em muitos casos foi o ensino remoto para manter a regularidade do ensino. O Instituto Alberto Luiz Coimbra de Pós-Graduação e Investigação em Engenharia (COPPE) da Universidade Federal do Rio de Janeiro (UFRJ) foi uma das instituições que adotou essa medida. O Instituto acreditava que os estudantes preferiam estar a salvo de epidemias, uma vez que o seu equilíbrio emocional seria preservado enquanto prosseguiam os seus estudos. Analisando este cenário, foi possível avaliar a qualidade do ensino remoto e como essa mudança afetou os estudantes na dimensão intelectual. A Lógica Fuzzy possibilita a análise de modelos dinâmicos aplicados à realidade e desta forma contribuiu para a avaliação da Qualidade de Vida dos estudantes de ensino remoto, por meio da coleta de dados a partir de um questionário aplicado aos estudantes de uma turma do Programa de Engenharia de Produção da C...
Brazilian Journal of Radiation Sciences
The knowledge of workers constitute as valuable resources, as they enable organizations to perfor... more The knowledge of workers constitute as valuable resources, as they enable organizations to perform their functions successfully. However, there are conditions that favor the loss of this knowledge in organizations, as for example, the natural aging of workers and consequently the retirement and staff turnover. Then, it becomes important for organization to seek the preservation these knowledge. For a successful implementation of Knowledge Management (KM), it is important to identify the barriers or critical factors that affect the success of the KM process. From the perspective of the nuclear organizations, no systematic framework exists on characterizing a set of critical success factors (CSFs) for implementing KM. Furthermore, the CSFs assessment deals with uncertainty and imprecision of human judgments. In this context, this paper presents a decision support method using CSFs and logic fuzzy to assess the KM in nuclear organizations. Fuzzy theory is essentially used in mapping q...
Fuzzy Dual Entropy and Applications
Fuzzy Dual Numbers, 2017
In this chapter, fuzzy dual numbers and probabilities as well as fuzzy dual entropy are introduce... more In this chapter, fuzzy dual numbers and probabilities as well as fuzzy dual entropy are introduced. The classical entropy maximization approach for trip distribution prediction in transportation networks is reviewed and a new formulation is proposed using the fuzzy dual formalism. This leads to the consideration of a new mathematical programming problem involving the primal and dual parts of the trip distribution probabilities. The complexity of this problem is analyzed and a solution method is proposed. The new approach for trip distribution prediction is illustrated in the case of a small size transportation network and finally its main interests and difficulties are discussed.
A energia solar fotovoltaica está se tornando uma alternativa viável e não poluente para a geraçã... more A energia solar fotovoltaica está se tornando uma alternativa viável e não poluente para a geração de energia mediante o uso de combustíveis fósseis. Com isso, este estudo tem como objetivo descobrir as melhores localizações para a instalação de uma usina solar fotovoltaica no estado do Rio de Janeiro, no Brasil, através de critérios ambientais, técnicos e econômicos utilizando o modelo COPPE-Cosenza e um SIG (Sistema de Informações Geográficas). Os resultados mostram que o estado do Rio de Janeiro tem um elevado potencial para a geração de energia solar fotovoltaica, em especial no litoral norte.
coppeCosenzaR: A hierarchical decision model
SoftwareX, 2022
Multi-Agent Systems for Efficient Airport Freight Terminal Modelling and Simulation
In this paper, after discussing the issue of modeling airport freight terminals, a macroscopic fr... more In this paper, after discussing the issue of modeling airport freight terminals, a macroscopic freight terminal simulator, the MACS (MAcroscopic Cargo Simulator) tool, is presented. The OPAL (Optimization Platform for Airports, including Land-side) [OPAL] research and development project identified the absence of an adequate tool for airport freight terminal modeling and simulation. So, within this project the tool MACS has been designed and implemented as a multi-agent simulation tool for airport freight terminal representation, analysis and simulation. The aim of this tool is to model, analyze and simulate at a macroscopic level the entire freight terminal activity of a given airport. A MACS version is presently integrated into the OPAL platform together with other tools in order to obtain a full simulation platform able to represent all the traffic activities of an airport (total airport simulation and analysis). In MACS, the airport freight terminal is modeled as a multi-agent n...
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Papers by Carlos Alberto Nunes Cosenza