Journals:
Jueying Li, Damsub Lim, Tuan Anh Nguyen, Eunmi Choi, Dugki Min, Ruben Machucho Cadena, Bruno Nogueira, Ermeson Andrade, Gustavo Callou, Mario di Mauro, Matheus Torquato, Francisco Airton Silva, Paulo Maciel. S-iNAS: A Performance-Centric SRN Modeling and Analysis of Time and Event based Scaling Strategies in Ceph-based Industrial Network-Attached Storage. Journal of Network and Systems Management, 2025.

Tuan Anh Nguyen, José Rocha, Éder Gomes, Vandirleya Barbosa, Arthur Sabino, Luiz Nelson Lima, Gustavo Callou, Francisco Airton Silva, Eunmi Choi, Dugki Min, Jae-Woo Lee. Enhancing Data Harvesting Systems: Performance Quantification of Cloud-Edge-Sensor Networks using Queueing Theory. ICT Express, 2025.

Carlos Brito, Gabriel Araujo, Iure Fé, Paulo A L Rego, Gustavo Callou, Ivson Borges, Paulo Maciel, Tuan Anh Nguyen, Francisco Airton Silva. Sensitivity-centered preventive maintenance strategies for enhanced urban surveillance: a stochastic petri net analysis. Computing, 2025.

Thiago Valentim Bezerra, Gustavo Callou, Francisco Airton, Eduardo Tavares. A modeling-based approach for performance and availability assessment of IoMT systems. Electronics, 2025.

Borges, Ivson; Andrade, Ermeson; Silva, Francisco Airton; Callou, Gustavo. Availability Evaluation of a Video Surveillance System with Distributed Storage. Cluster Computing, 2025.

Sousa Sobrinho, Francisco; Callou, Gustavo. Analysis of Evolutionary Multi-objective Algorithms for Data Center Electrical Systems. COMPUTING, 2025.

FEITOSA, L. ; BARBOSA, V. ; SABINO, A. ; LIMA, L. N. ; FE, I. ; SILVA, L. G. ; Callou, Gustavo ; CARVALHO, J. O. ; LEAO, E. M. ; NGUYEN, T. A. ; REGO, P. A. L. ; SILVA, F. A. P. A Comprehensive Performance Evaluation of Container Migration Strategies. COMPUTING, 2025.

Gomes, COUTO, H.; Callou, Gustavo; MACHIDA, F.; Andrade, Ermeson. A Comparative Analysis of Software Aging in Relational Database System Environments. IEEE Transactions on Emerging Topics in Computing, 2024.

Gomes, Alison ; Callou, Gustavo. Models for Availability Evaluation of File Servers in Private Clouds. COMPUTING, 2024.

VALENTIM, THIAGO ; Callou, Gustavo ; FRANÇA, CLEUNIO ; Tavares, Eduardo. Availability and Performance Assessment of IoMT Systems: A Stochastic Modeling Approach. Journal of Network and Systems Management, 2024.

BRITO, CARLOS ; BARBOSA, VANDIRLEYA ; LIMA, LUIZ NELSON ; ROCHA, JOSÉ WANDERLEI ; ARAÚJO, JOSÉ MIQUÉIAS ; LOPES, LUCAS ; REGO, PAULO A. L. ; SALES, MICHEL ; Callou, Gustavo ; FÉ, IURE ; SILVA, FRANCISCO AIRTON. Performance evaluation of a video surveillance system using stochastic petri nets for license plate detection on highways. Journal of Reliable Intelligent Environments, 2024.

Taciano Amorim, Anderson Santos, Gustavo Callou. Compra e venda de ações negociadas na B3 utilizando LSTM, análise de tendência e stop. Revista Gestao.Org, 2024.

Francisco Airton Silva, Antonio, J. Miqueias, Jorge Rafael, Juliana C., Gustavo Callou. Availability Assessment and Sensitivity Analysis of an MBaaS Platform. International Journal of Computational Science and Engineering (IJCSE), 2024.

Herderson Couto, Francisco Airton Silva, Ermeson Andrade, Gustavo Callou. Analysis of Software Aging in a Database Environment. IEEE Latin America Transactions, 2023.

Taciano Amorim, Gustavo Callou, Saulo Pereira, Anderson Sena. Utilizando rede LSTM para predição de ações de vários setores econômicos da bolsa de valores. Revista Gestao.Org, 2023.

Carlos Lima, Igor Lima, Marcelo Lima, Gustavo Callou. Padronização de implantação de sistema eletrônico de informações e gestão de documentos (SEI) em PaaS Kubernetes públicas e privadas. Revista de Engenharia e Pesquisa Aplicada, 2023.

Santos Neto, Osvaldo; Callou, Gustavo; Santos Júnior, Rodemarck; Andrade, Ermeson. Performability Evaluation of Railway Systems: A Study on the Impact of Adding Alternative Routes. IEEE Latin America Transactions, 2023.

Sousa Sobrinho, F.; Callou, G.; Souza Leonardo, W.; Nogueira, B. Multi-Objective Optimization Strategy Applied in Data Centers Electrical Subsystems. IEEE Latin America Transactions, 2023.

Santos, Anderson Sena; Callou, G.; Amorim, Taciano. Uma estratégia de negociação: um estudo de desempenho aplicado ao mercado de ações. RMP - Revista dos Mestrados Profissionais, 2023.

Igor Sodré Farias, Saulo Ferreira, Petrônio Lopes, Gustavo Callou. Uma Análise Comparativa Entre Serviços SaaS (AWS-ECS) e IaaS (AWS-EC2). Revista de Engenharia e Pesquisa Aplicada (REPA), 2022.

GONCALVES, C. F.; Andrade, E.; MENDONCA, J.; Callou, Gustavo Modelos Estocásticos para o Planejamento de Ambientes AVAs Baseados em Contêineres e Máquinas Virtuais. REVISTA DE INFORMÁTICA TEÓRICA E APLICADA: RITA, 2022.

MELO, F. F. L.; CARNEIRO, E.; CALLOU, G. R. A. Optimization of Electrical Infrastructures at Data Centers through a DoE-based Approach. JOURNAL OF SUPERCOMPUTING, 2022.

SANTOS JUNIOR, R. M. ; Callou, Gustavo Rau de Almeida ; SANTOS NETO, O. M. Avaliação da Performabilidade do Sistema Ferroviário da Região do Recife. GESTÃO.ORG, 2021.

LEONARDO, W. S. ; CALLOU, G. R. A. Stars: um ambiente integrado para avaliação de disponibilidade, custo e consumo de energia de sistemas. REVISTA BRASILEIRA DE COMPUTAÇÃO APLICADA, 2021.

BRITO, CARLOS ; SILVA, LEONARDO ; Callou, Gustavo ; NGUYEN, TUAN ANH ; MIN, DUGKI ; LEE, JAE-WOO ; SILVA, FRANCISCO AIRTON. Offloading Data through Unmanned Aerial Vehicles: A Dependability Evaluation. ELECTRONICS, 2021.

LIMA, C. ; Gomes, Alison ; Andrade, E. ; Callou, G. Avaliação de desempenho e consumo de energia de um ambiente virtual de aprendizagem em nuvens privadas. REVISTA BRASILEIRA DE COMPUTAÇÃO APLICADA, 2021.

GONCALVES, C. F.; Andrade, Ermeson; Callou, Gustavo; NOGUEIRA, B. Avaliação de desempenho, consumo de energia e custo para ambientes baseados em contêineres e máquinas virtuais. REVISTA BRASILEIRA DE COMPUTAÇÃO APLICADA, 2021.

LIMA, C. J.; Gomes, Alison; Andrade, E.; Callou, Gustavo. Avaliação de Desempenho e Consumo de Energia do Ambiente MOODLE. RESEARCH, SOCIETY AND DEVELOPMENT, 2021.

LIMA, JOHN WESLEY SOARES DE ; Callou, Gustavo ; Andrade, Ermeson. Teoria de Filas e Rede de Petri Estocástica: Um tutorial. RESEARCH, SOCIETY AND DEVELOPMENT, 2021.

BEZERRA, T. V. ; Callou, Gustavo. A Model-Based Strategy for Quantifying the Impact of Availability on the Energy Flow of Data Centers. JOURNAL OF SUPERCOMPUTING, v, p. 1, 2020.

MELO, F. F. L.; SOUSA, E.; CALLOU, G. R. A..Sensitivity Analysis of Data Center Electrical Infrastructures Considering Aspects of Dependability and Cost. IEEE Latin America Transactions, 2020.

BEZERRA, T. V.; LEONARDO, W. S.; ALBUQUERQUE JUNIOR, GABRIEL; Callou, Gustavo. Dimensioning the relationship between availability and data center energy flow metrics. REVISTA DE INFORMÁTICA TEÓRICA E APLICADA: RITA, 2020.

MELO, F. F. L. ; FERREIRA, JOÃO ; Callou, Gustavo. Evaluating the impact of maintenance policies associated to SLA contracts on the dependability of data centers electrical infrastructures. REVISTA DE INFORMÁTICA TEÓRICA E APLICADA: RITA, v. 27, p. 13-25, 2020.

MORAIS, A. M.; Callou, Gustavo; Aires, Fernando. Simulação e Avaliação de Desempenho de uma Rede Blockchain Utilizando Containers Docker. CADERNOS DO IME. SÉRIE INFORMÁTICA. , v.44, p.73 - 87, 2020.

FERREIRA, JOÃO ; Callou, Gustavo; Maciel, Paulo; Tutsch, Dietmar. An algorithm to optimise the energy distribution of data centre electrical infrastructures. INTERNATIONAL JOURNAL OF GRID AND UTILITY COMPUTING (ONLINE). , v.11, p.419 - , 2020

Marcio Austregesilo, ; Callou, Gustavo. Stochastic Models for Optimizing Availability, Cost and Sustainability of Data Center Power Architectures through Genetic Algorithm. REVISTA DE INFORMÁTICA TEÓRICA E APLICADA: RITA, v. 26, p. 27-44, 2019.

NOGUEIRA, B. ; TAVARES, E. ; ARAUJO, J. ; Callou, G. . Accelerating continuous GRASP with a GPU. JOURNAL OF SUPERCOMPUTING, p. 1, 2019.

FERREIRA, JOÃO ; Callou, Gustavo ; JOSUA, A. ; Tutsch, Dietmar ; MACIEL, P. . An Artificial Neural Network Approach to Forecast the Environmental Impact of Data Centers. INFORMATION, v. 10, p. 113, 2019.

Gomes, Alison ; LIMA, C. ; Callou, Gustavo . Análise de Desempenho do Ambiente Virtual de Aprendizagem na Nuvem Privada Apache Cloudstack. GESTÃO.ORG, v. 17, p. 120-133, 2019.

BEZERRA TORRES, ELTON ; Callou, Gustavo ; Andrade, E. . A hierarchical approach for availability and performance analysis of private cloud storage services. COMPUTING, p. 621-644, 2018.

ARAUJO, C. ; Andrade, E. ; Callou, Gustavo ; ALVES, V. ; Maciel, Paulo . Decision making in cloud environments: an approach based on multiple-criteria decision analysis and stochastic models. Journal of Cloud Computing: Advances, Systems and Applications, v. 7, p. 1, 2018.

Andrade, Ermeson ; NOGUEIRA, B. ; Callou, Gustavo ; ALVES, GABRIEL . Dependability analysis of a cyber-physical system for smart environments. CONCURRENCY AND COMPUTATION: PRACTICE & EXPERIENCE, v. v, p. e4739, 2018.

FERREIRA, JOAO ; Callou, G. ; Tutsch, Dietmar ; MACIEL, P. .> PLDAD-An Algorihm to Reduce Data Center Energy Consumption. Energies, v. 11, p. 2821, 2018.

YADAV, R. ; SOUSA, E. ; Callou, Gustavo . Performance Comparison Between Virtual Machines and Docker Containers. IEEE Latin America Transactions, v. 16, p. 2282-2288, 2018.

Andrade, Ermeson ; Nogueira, Bruno ; MATOS, RUBENS ; Callou, Gustavo ; Maciel, Paulo . Availability modeling and analysis of a disaster-recovery-as-a-service solution. Computing (Wien. Print), v. v, p. 1, 2017.

BARROS, J. ; Callou, Gustavo ; GONCALVES, G. ; MEDEIROS, V. ; CASTELETTI, H. . Análise de desempenho de Banco de Dados Relacionais e Não Relacionais em dados genômicos. REVISTA DE INFORMÁTICA TEÓRICA E APLICADA: RITA, v. 24, p. 11, 2017.

Callou, Gustavo; FERREIRA, JOÃO ; Maciel, Paulo ; Tutsch, Dietmar ; SOUZA, RAFAEL . An Integrated Modeling Approach to Evaluate and Optimize Data Center Sustainability, Dependability and Cost. Energies (Basel), v. 7, p. 238-277, 2014.

Callou, Gustavo; Maciel, Paulo ; Tutsch, Dietmar ; FERREIRA, JOÃO ; ARAÚJO, JULIAN ; SOUZA, RAFAEL . Estimating sustainability impact of high dependable data centers: a comparative study between Brazilian and US energy mixes. Computing (Wien. Print), v. v, p. 1-34, 2013.

FERREIRA, JOÃO ; Callou, Gustavo ; Maciel, Paulo . A Power Load Distribution Algorithm to Optimize Data Center Electrical Flow. Energies (Basel), v. 6, p. 3422-3443, 2013.

Silva, B. ; Callou, G. ; TAVARES, E. ; MACIEL, P. ; FIGUEIREDO, J. ; SOUSA, E. ; ARAUJO, C. ; MAGNANI, F. ; NEVES, F. . ASTRO: An integrated environment for dependability and sustainability evaluation. Sustainable Computing: Informatics and Systems, v. v, p. 1-31, 2012.

NOGUEIRA, B. ; MACIEL, P. ; TAVARES, E. ; Andrade, E. ; MASSA, R. ; Callou, Gustavo . A Formal Model for Performance and Energy Evaluation of Embedded Systems. EURASIP Journal on Embedded Systems, v. 2011, p. 1-12, 2011.

Callou, Gustavo; Maciel, Paulo ; Tavares, Eduardo ; Andrade, Ermeson ; Nogueira, Bruno ; Araujo, Carlos ; Cunha, Paulo . Energy consumption and execution time estimation of embedded system applications. Microprocessors and Microsystems, v. 35, p. 426-440, 2011.

TAVARES, E. ; MACIEL, P. ; Dallegrave, P. ; Silva, B. ; Falcão, F. ; NOGUEIRA, B. ; Callou, Gustavo ; Cunha, Paulo . Model-Driven Software Synthesis for Hard Real-Time Applications with Energy Constraints. Design Automation for Embedded Systems, v. 14, p. 327-366, 2011.

Andrade, E. ; MACIEL, P. ; NOGUEIRA, B. ; ARAUJO, C. ; CALLOU, G. R. A. . A COTS-Based Approach for Estimating Performance and Energy Consumption of Embedded Real-Time Systems. Information Processing Letters (Print), v. 110, p. 525-534, 2010.

Araújo, Carlos ; Maciel, Paulo ; Zimmermann, Armin ; Andrade, Ermeson ; Sousa, Erica ; Callou, Gustavo ; Cunha, Paulo . Performability modeling of electronic funds transfer systems. Computing (Wien. Print), p. p.1, 2010.

Marwah, Manish ; Maciel, Paulo ; Shah, Amip ; Sharma, Ratnesh ; Christian, Tom ; Almeida, Virgilio ; Araújo, Carlos ; Souza, Erica ; Callou, Gustavo ; Silva, Bruno ; Galdino, Sérgio ; Pires, Jose . Quantifying the sustainability impact of data center availability. Performance Evaluation Review, v. 37, p. 64-68, 2010.

NOGUEIRA, B. ; MACIEL, P. ; CALLOU, G. R. A. ; Andrade, E. ; TAVARES, E. . ALUPAS: Avaliação de desempenho e consumo de energia de softwares para sistemas embarcados. Revista de Informática Teórica e Aplicada, v. XVI, p. 1-20, 2009.

Andrade, E. ; MACIEL, P. ; Falcão, F. ; NOGUEIRA, B. ; ARAUJO, C. ; CALLOU, G. R. A. . Performance and Energy Consumption Estimation for Commercial Off-the-Shelf Component System Design. Innovations in Systems and Software Engineering (Print), v. 6, p. 107-114, 2009.

CALLOU, G. R. A.; MACIEL, P. ; CARNEIRO, E. ; NOGUEIRA, B. ; TAVARES, E. . Estimation of energy consumption and execution time in early phases of design lifecycle: an application to biomedical systems. Electronics Letters, v. 44, p. 1343, 2008.

NOGUEIRA, B. ; MACIEL, P. ; CALLOU, G. R. A. ; CARNEIRO, E. . ALUPAS: Um simulador estocástico para avaliação de desempenho e consumo de energia de software para sistemas embarcados. REIC. Revista Eletrônica de Iniciação Científica, v. IV, p. 12, 2008.