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We are the Navigators, a research team on distributed systems, their architectures, their algorithms, in their several skins: fault tolerance, real-time, security, and combinations thereof.

We also pursue the quest for the right balance between science and technology. Some people say that Informatics (a.k.a. computer science and engineering) belongs to a new breed, of what are called techno-sciences. We believe that techno-scientists should accompany theoretical mastery with a deep knowledge of their environment — computer technology — as well as astro-physicists know the sky, or marine biologists know the sea.

We study new theories to explain distributed systems, and new algorithms to take advantage from them. But we also like to do proof-of-concept experiments about the theory we work on. We try that our papers and theses tell a good story as clearly as possible. We work hard for our demonstrations to be convincing and captivating. Because we believe science is made for others.

Our greatest riches are our culture, and our researchers and students. If you believe in the former, you can become one of the latter. Welcome!


Latest publications

  • Rodrigo de Medeiros, “Secure Monitoring for a Secure Smart Grid”, Master’s thesis, Mestrado em Engenharia Informática, Departamento de Informática, Faculdade de Ciências da Universidade de Lisboa, Lisbon, Portugal, Sept. 2015.

  • Alysson Bessani, Jörgen Brandt, Marc Bux, Vinicius Vielmo Cogo, Lora Dimitrova, Jim Dowling, Ali Gholami, Kamal Hakimzadeh, Michael Hummel, Mahmoud Ismail, Erwin Laure, Ulf Leser, Jan-Eric Litton, Roxanna Martinez, Jane Reichel, Salman Niazi, Karin Zimmermann, “BiobankCloud: a Platform for the Secure Storage, Sharing, and Processing of Large Biomedical Data Sets”, in Proceedings of the 1st Int. Workshop on Data Management and Analytics for Medicine and Healthcare (DMAH 2015), Hawaii, US, Sept. 2015.


[1] What: NavTalk, When: Friday, 2015-Dec-04, 12h00-14h00, Where: room C6.3.38
Title: -

Speaker: José Rufino

Title: -

Speaker: Ricardo Mendes

[2] What: NavTalk, When: Friday, 2015-Nov-20, 12h00-14h00, Where: room C6.3.38
Title: Cassowary: Middleware Platform for Context-Aware Smart Buildings with Software-Defined Sensor Networks
Speaker:Pradeeban Kathiravelu (IST-UL)
Title: Dependable monitoring in aquatic wireless sensor networks
Speaker: Gonçalo Jesus

[3] What: NavTalk, When: Friday, 2015-Nov-13, 14h00-15h00, Where: room C6.3.38
Title: Self-Stabilizing Virtual Machine Hypervisor Architecture for Resilient Cloud
Speaker:Alexander Binun (Ben-Gurion University of the Negev)

[4] What: NavTalk, When: Friday, 2015-Nov-06, 12h15-14h00, Where: room C6.3.38
Title: Genomes in the cloud: Dependable please, but affordable!
Speaker: Vinicius Cogo
Title: An SDN-based approach to manage and improve BGP security
Speaker: Rigivaldo Costa

[5] (Navtalk)
Friday, 2015-Oct-23, 12h15-14h00, room C6.3.38
Title: Mesobi: Memória em Software Transacional Tolerante a Faltas Bizantinas
Speaker: Tulio Ribeiro
Title: SuperCloud: The first demo is the hardest
Speaker: Max Alaluna

Friday, 2015-Oct-09, 12h15-14h00, room C6.3.38
[6] (Navtalk)
Title: Intrusion tolerance, make it last!
Speaker: Miguel Garcia
Title: Dependable MapReduce in a Cloud of Clouds
Speaker: Pedro Costa

Friday, 2015-Sep-25, 12h15-14h00, room C6.3.38
[7] (Navtalk)
Title: Separating the WHEAT from the Chaff: An Empirical Design for Geo-Replicated State Machines
Speaker: João Sousa
Title: Securing Passive Replication Through Verification
Speaker: Bruno Vavala
Title: A High-Throughput Method to Detect Privacy-Sensitive Human Genomic Data
Speaker: Vinicius Cogo

Friday, 2015-June-25, 11h30-12h00 , room C6.3.38
[8] (Smalltalk)
Title: Trusted Distributed Processing Over a Large State
Speaker: Bruno Vavala

Friday, 2015-June-05, 12h15-14h00, room C6.3.38
[9] (Navtalk)
Title: SDN-based Network Monitoring Under Attack
Speaker: Ricardo Fonseca
Title: Fault Tolerant Precision Time Protocol for Smart Grids

Speaker: Radu Onica
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