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I am a integrated researcher at CISUC - University of Coimbra. I am also affiliated as an Assistant Professor at the Federal Institute of Alagoas, Arapiraca, Brazil. Recently, I finished my PhD in Informatics Engineering at the University of Coimbra, Portugal (2024). My PhD advisor was Professor Marco Vieira. I obtained my MSc from the Federal University of Pernambuco, Recife (2014). My MsC advisor was Professor Paulo Maciel. My research interests are in system security, performance, and dependability evaluation. The recent topics of my research activity are focused on availability and reliability evaluation, Virtual Machine migration-enabled environments, Moving Target Defense and Software Aging and Rejuvenation. My main research interests (current) include: - Moving Target Defense evaluation (modeling, simulation, and measurements) - Software Aging and Rejuvenation - Possible crossovers between AI, ML, and stochastic modeling - Stochastic Petri Nets I authored more than 20 peer-review papers on the topics related above. Some papers were published in top-rank venues such as Elsevier Computers & Security journal, IEEE Access journal, and IEEE International Symposium on Software Reliability Engineering (ISSRE).
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Identification

Personal identification

Full name
Matheus D Eça Torquato de Melo

Citation names

  • Torquato, Matheus
  • Melo, Matheus

Author identifiers

Ciência ID
FA18-12F8-22A8
ORCID iD
0000-0003-3211-7951
Google Scholar ID
ByWZC3UAAAAJ

Websites

Knowledge fields

  • Exact Sciences - Computer and Information Sciences - Computer Sciences
Education
Degree Classification
2018/09/01 - 2024/09/07
Concluded
 PhD in Informatics Engineering (Doutoramento)
Universidade de Coimbra Departamento de Engenharia Informática, Portugal
"Models for Availability and Security Evaluation of Time-based Virtual Machine Migration as Moving Target Defense" (THESIS/DISSERTATION)
2012/02/01 - 2014/03/10
Concluded
 Ciência da Computação (Mestrado)
Universidade Federal de Pernambuco Centro de Informática, Brazil
"MODELOS DE DISPONIBILIDADE PARA NUVENS PRIVADAS: REJUVENESCIMENTO DE SOFTWARE HABILITADO POR AGENDAMENTO DE MIGRAÇÃO DE VMS" (THESIS/DISSERTATION)
 20
Affiliation

Science

Category
Host institution 		Employer
2018/09/10 - Current Researcher (Research) Universidade de Coimbra Centro de Informatica e Sistemas, Portugal
Outputs

Publications

Conference paper
  1. Torquato, Matheus; Jesus, Bruno; Silva, Francisco Airton; Cerqueira, Eduardo. Corresponding author: Torquato, Matheus. "Empirical observation of Execution Throttling as MQTT Broker defense against Memory Denial of Service Attacks". 2024.
    10.1145/3697090.3699870
  2. Torquato, Matheus; Maciel, Paulo; Vieira, Marco. "Software Rejuvenation Meets Moving Target Defense: Modeling of Time-Based Virtual Machine Migration Approach". 2022.
    10.1109/issre55969.2022.00029
  3. Torquato, Matheus; Maciel, Paulo; Vieira, Marco. "PyMTDEvaluator: A Tool for Time-Based Moving Target Defense Evaluation: Tool description paper". 2021.
    10.1109/issre52982.2021.00045
  4. Torquato, Matheus; Vieira, Marco. "VM Migration Scheduling as Moving Target Defense against Memory DoS Attacks: An Empirical Study". 2021.
    10.1109/iscc53001.2021.9631397
  5. Torquato, Matheus; Maciel, Paulo; Vieira, Marco. "Analysis of VM migration scheduling as moving target defense against insider attacks". 2021.
    10.1145/3412841.3441899
  6. Santos, Lucas; Rodrigues, Laécio; Torquato, Matheus; Silva, Francisco Airton. "Uma Análise Experimental Sistemática do Envelhecimento e Rejuvenescimento da Plataforma Docker". 2020.
    10.5753/wperformance.2020.11112
  7. Torquato, Matheus; Goncalves, Charles F.; Vieira, Marco. "An Availability Model for DSS and OLTP Applications in Virtualized Environments". 2020.
    10.1109/edcc51268.2020.00023
  8. Torquato, Matheus; Maciel, Paulo; Vieira, Marco. "Security and Availability Modeling of VM Migration as Moving Target Defense". 2020.
    10.1109/prdc50213.2020.00016
  9. Torquato, Matheus; Guedes, Erico; Maciel, Paulo; Vieira, Marco. "A Hierarchical Model for Virtualized Data Center Availability Evaluation". 2019.
    10.1109/edcc.2019.00029
  10. Torquato, Matheus. "An Experimental Study of Software Aging and Rejuvenation in Dockerd". 2019.
    10.1109/edcc.2019.00014
  11. Torquato, Matheus; Torquato, Lucas; Maciel, Paulo; Vieira, Marco. "IaaS Cloud Availability Planning using Models and Genetic Algorithms". 2019.
    10.1109/ladc48089.2019.8995734
  12. Matheus Torquato; Marco Vieira. "Interacting SRN Models for Availability Evaluation of VM Migration as Rejuvenation on a System under Varying Workload". 2018.
    10.1109/issrew.2018.00022
  13. Matheus Torquato; Paulo Maciel; Jean Araujo; I. M. Umesh. "An approach to investigate aging symptoms and rejuvenation effectiveness on software systems". 2017.
    10.23919/cisti.2017.7975806
  14. Julian Araujo; Paulo Maciel; Matheus Torquato; Gustavo Callou; Ermeson Andrade. "Availability Evaluation of Digital Library Cloud Services". 2014.
    10.1109/dsn.2014.65
  15. Matheus Melo; Jean Araujo; Rubens Matos; Julian Menezes; Paulo Maciel. "Comparative Analysis of Migration-Based Rejuvenation Schedules on Cloud Availability". 2013.
    10.1109/smc.2013.701
  16. Matheus Melo; Paulo Maciel; Jean Araujo; Rubens Matos; Carlos Araujo. "Availability study on cloud computing environments: Live migration as a rejuvenation mechanism". 2013.
    10.1109/dsn.2013.6575322
Conference poster
  1. Jesus, Bruno; Torquato, Matheus. "Perception of Users Regarding the Energy Consumption of Mobile Devices". Paper presented in 11º INForum, 2019.
Journal article
  1. Torquato, Matheus; Maciel, Paulo; Vieira, Marco. Corresponding author: Torquato, Matheus. "Evaluation of time-based virtual machine migration as moving target defense against host-based attacks". Journal of Systems and Software 219 (2025): 112222. https://doi.org/10.1016/j.jss.2024.112222.
    Published • 10.1016/j.jss.2024.112222
  2. Santos, Lucas; Brito, Carlos; Fé, Iure; Carvalho, Juliana; Torquato, Matheus; Choi, Eunmi; Min, Dugki; et al. "Event-Based Moving Target Defense in Cloud Computing With VM Migration: A Performance Modeling Approach". IEEE Access 12 (2024): 165539-165554. https://doi.org/10.1109/access.2024.3393998.
    10.1109/access.2024.3393998
  3. Vinícius, Lucas; Rodrigues, Laécio; Torquato, Matheus; Silva, Francisco Airton. "Docker platform aging: a systematic performance evaluation and prediction of resource consumption". The Journal of Supercomputing 78 10 (2022): 12898-12928. http://dx.doi.org/10.1007/s11227-022-04389-4.
    10.1007/s11227-022-04389-4
  4. Torquato, Matheus; Maciel, Paulo; Vieira, Marco. "Model-Based Performability and Dependability Evaluation of a System with VM Migration as Rejuvenation in the Presence of Bursty Workloads". Journal of Network and Systems Management 30 1 (2021): http://dx.doi.org/10.1007/s10922-021-09619-3.
    10.1007/s10922-021-09619-3
  5. Torquato, Matheus; Vieira, Marco. "Moving target defense in cloud computing: A systematic mapping study". Computers & Security 92 (2020): 101742. http://dx.doi.org/10.1016/j.cose.2020.101742.
    10.1016/j.cose.2020.101742
  6. Torquato, Matheus; Maciel, Paulo; Vieira, Marco. "Availability and reliability modeling of VM migration as rejuvenation on a system under varying workload". Software Quality Journal 28 1 (2020): 59-83. http://dx.doi.org/10.1007/s11219-019-09474-1.
    10.1007/s11219-019-09474-1
  7. Pereira, Paulo; Araujo, Jean; Torquato, Matheus; Dantas, Jamilson; Melo, Carlos; Maciel, Paulo. "Stochastic performance model for web server capacity planning in fog computing". The Journal of Supercomputing 76 12 (2020): 9533-9557. http://dx.doi.org/10.1007/s11227-020-03218-w.
    10.1007/s11227-020-03218-w
  8. Torquato, Matheus. "A Model for Availability and Security Risk Evaluation for Systems With VMM Rejuvenation Enabled by VM Migration Scheduling". IEEE Access (2019): http://dx.doi.org/10.1109/access.2019.2943273.
    10.1109/access.2019.2943273
  9. Torquato, Matheus; Maciel, Paulo; Vieira, Marco. "A Model for Availability and Security Risk Evaluation for Systems With VMM Rejuvenation Enabled by VM Migration Scheduling". (2019): https://hdl.handle.net/10316/101592.
    https://doi.org/10.1109/ACCESS.2019.2943273
  10. Matheus Torquato; Jean Araujo; I. M. Umesh; Paulo Maciel. "SWARE: A Methodology for Software Aging and Rejuvenation Experiments". Journal of Information Systems Engineering & Management 3 2 (2018): https://doi.org/10.20897%2Fjisem.201815.
    10.20897/jisem.201815
  11. Torquato, M.; Umesh, I.M.; Maciel, P.. "Models for availability and power consumption evaluation of a private cloud with VMM rejuvenation enabled by VM Live Migration". Journal of Supercomputing (2018): http://www.scopus.com/inward/record.url?eid=2-s2.0-85050183501&partnerID=MN8TOARS.
    10.1007/s11227-018-2485-4
  12. Matheus D'Eça Torquato de Melo; Jean Araujo; I M Umesh; Paulo Romero Martins Maciel. "SWARE: An approach to support software aging and rejuvenation experiments". Journal on Advances in Theoretical and Applied Informatics 3 1 (2017): 31-31. https://doi.org/10.26729%2Fjadi.v3i1.2441.
    10.26729/jadi.v3i1.2441
  13. Umesh, I.M.; Srinivasan, G.N.; Torquato, M.. "Software rejuvenation model for cloud computing platform". International Journal of Applied Engineering Research 12 19 (2017): 8332-8337. http://www.scopus.com/inward/record.url?eid=2-s2.0-85040225864&partnerID=MN8TOARS.
  14. Umesh, I.M.; Srinivasan, G.N.; Torquato, M.. "Software aging forecasting using time series model". Indonesian Journal of Electrical Engineering and Computer Science 8 3 (2017): 589-596. http://www.scopus.com/inward/record.url?eid=2-s2.0-85037637805&partnerID=MN8TOARS.
    10.11591/ijeecs.v8.i3.pp589-596
  15. Umesh, I.M.; Srinivasan, G.N.; Torquato, M.. "Software aging forecasting using time series model". Indonesian Journal of Electrical Engineering and Computer Science 7 3 (2017): 839-845. http://www.scopus.com/inward/record.url?eid=2-s2.0-85031005600&partnerID=MN8TOARS.
    10.11591/ijeecs.v7.i3.pp839-845
  16. Jean Araujo; Academic Unit of Garanhuns; Federal Rural University of Pernambuco; Garanhuns; Brazil.; Felipe Oliveira; Rubens Matos; et al. "Software Aging Issues in Streaming Video Player". JSW 11 6 (2016): 554-568. http://dx.doi.org/10.17706/jsw.11.6.554-568.
    10.17706/jsw.11.6.554-568
  17. Matheus Torquato. "Comparison of VM Live Migration Process Impacts on QoS of Web Server Hosted in Cloud". IJCA 137 13 (2016): 5-10. http://dx.doi.org/10.5120/ijca2016909039.
    10.5120/ijca2016909039
Thesis / Dissertation
  1. Melo, Matheus D'Eça Torquato de. "Models for Availability and Security Evaluation of Time-based Virtual Machine Migration as Moving Target Defense". PhD, 2024. https://hdl.handle.net/10316/115669.
  2. Melo, Matheus D'Eça Torquato de. "“MODELOS DE DISPONIBILIDADE PARA NUVENS PRIVADAS: REJUVENESCIMENTO DE SOFTWARE HABILITADO POR AGENDAMENTO DE MIGRAÇÃO DE VMS”". Master, 2018. http://hdl.handle.net/10316/81770.
  3. Melo, Matheus D'Eça Torquato de. "“MODELOS DE DISPONIBILIDADE PARA NUVENS PRIVADAS: REJUVENESCIMENTO DE SOFTWARE HABILITADO POR AGENDAMENTO DE MIGRAÇÃO DE VMS”". Master, 2018. https://hdl.handle.net/10316/81770.
  4. MELO, Matheus D’Eça Torquato de. "Modelos de Disponibilidade Para Nuvens Privadas: Rejuvenescimento de Software Habilitado Por Agendamento de Migração de VMs". Master, 2015. https://repositorio.ufpe.br/handle/123456789/11576.

Other

Other output
  1. Towards Models for Availability and Security Evaluation of Cloud Computing with Moving Target Defense. 2019. Torquato, Matheus.
Activities

Committee member

Activity description
Role 		Institution / Organization
2024/01/18 - 2024/06/27 Annual IEEE/IFIP International Conference on Dependable Systems and Networks - DSN - Doctoral Forum - Program Committee member.
Member

Journal scientific committee

Journal title (ISSN) Publisher
2018/01/09 - 2020/09/05 IEEE Access (2169-3536) Institute of Electrical and Electronics Engineers
2020/01/04 - 2020/08/11 Transactions on Dependable and Secure Computing (1545-5971) IEEE
2020/02/03 - 2020/02/04 SN Applied Sciences (2523-3971) Springer
2019/06/09 - 2019/07/02 Future Generation Computer Systems (0167-739X) Elsevier
2018/03/10 - 2019/03/01 The Journal of Supercomputing (1573-0484) Springer-Verlag
2018/02/08 - 2019/01/15 Reliability Engineering & System Safety (0951-8320) Elsevier
Distinctions

Award

2024 PhD Summa Cum Laude
Universidade de Coimbra Departamento de Engenharia Informática, Portugal
2024 1st Honorable Mention - Paper "Empirical observation of Execution Throttling as MQTT Broker defense against Memory Denial of Service Attacks" - Industry Track - LADC 2024
Sociedade Brasileira de Computacao, Brazil
2020 Winner of Doctoral Award of the first edition of the Tdx Merit Awards, an initiative powered by Talkdesk and supported by University of Coimbra
Talkdesk, Portugal
2019 Distinguished paper award - An Experimental Study of Software Aging and Rejuvenation in Dockerd - 2019 15th European Dependable Computing Conference (EDCC)
IEEE, United States

Other distinction

2021 Finalist of the 3-Minutes Thesis Competition
Universidade de Coimbra, Portugal
2018 Outstanding Contribution in Reviewing, Reliability Engineering and System Safety
Elsevier BV, Netherlands
2015 MSc Dissertation classified among ten best in the Thesis and Dissertation Contest (CTD) of Brazilian Computer Society Conference (CSBC).