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!
- (19/Jan/2016) A H2020 research project lead by the Navigators group was accepted by EC. The project is called: DiSIEM - Diversity enhancements for SIEMs
- (1/Sep/2015) A research project was accepted by FCT. The project is called: IRCoC - Intelligent Resilience for Cloud-of-Clouds Services
- (1/Set/2015) A collaboration project with colleagues from Brasil was accepted by CAPES-FCT. The project is called: Resilient Supervision and Control in Smart Grids
- (1/Feb/2015) A new European project has started, called SUPERCLOUD - User-Centric Management of Security and Dependability in Cloud of Clouds
- (1/Oct/2014) A new European project has started, called SEGRID - Security for smart Electricity GRIDs
- João Inácio, Ibéria Medeiros, “Effectiveness on C Flaws Checking and Removal (fast abstract)”, in In Proceedings of the 52nd IEEE/IFIP International Conference on Dependable Systems and Networks (DSN'22), Jun. 2022.
- Claudio Martins, Ibéria Medeiros, “Generating Quality Threat Intelligence Leveraging OSINT and a Cyber Threat Unified Taxonomy”, ACM Transactions on Privacy and Security, vol. 25-3, no. 19, May 2022.
- João Inácio, “Automatic Removal of Flaws in Embedded System Software”, Master’s thesis, Mestrado em Segurança Informática, Departamento de Informática, Faculdade de Ciências da Universidade de Lisboa, May 2022.
- Nuno Durão, “Discovery of Web Attacks by Inspecting HTTPS Network Traffic with Machine Learning and Similarity Search”, Master’s thesis, Mestrado em Segurança Informática, Departamento de Informática, Faculdade de Ciências da Universidade de Lisboa, May 2022.
- João Caseirito, “Attacking Web Applications for Dynamic Discovering of Vulnerabilities”, Master’s thesis, Mestrado em Segurança Informática, Departamento de Informática, Faculdade de Ciências da Universidade de Lisboa, Feb. 2022.
- André Gil, “Platform architecture and data management for cloud-based buildings energy self-assessment and optimization”, Master’s thesis, Faculdade de Ciências, Universidade de Lisboa, Jan. 2022.
- Ibéria Medeiros, Nuno Neves, Miguel Correia, “Statically Detecting Vulnerabilities by Processing Programming Languages as Natural Language”, IEEE Transactions on Reliability, Jan. 2022.
- Vasco Leitão, “Prioritization of Software and System Requirements through Natural Language Processing for Testing Software”, Master’s thesis, Mestrado em Ciência em Dados, Nov. 2021.
- Ricardo Mendes, Tiago Oliveira, Vinicius Vielmo Cogo, Nuno Ferreira Neves, Alysson Bessani, “CHARON: A Secure Cloud-of-Clouds System for Storing and Sharing Big Data”, IEEE Transactions on Cloud Computing, vol. 9, no. 4, pp. 1349–1361, Oct. 2021.
- Vinicius Vielmo Cogo, Alysson Bessani, “Brief Announcement: Auditable Register Emulations”, in 35th International Symposium on Distributed Computing (DISC 2021), Oct. 2021.
 What: NavTalk, When: Friday, 2016-Jan-15, 12pm-2pm, Where: room C6.3.38
|Nuno Neves||presents||Making WAP Really Discover 0-day Vulnerabilities with Less Errors|
|Pedro Maia||presents||Resilient Communications in Smart Grids|
 What: NavTalk, When: Friday, 2015-Dec-18, 12h00-14h00, Where: room C6.3.38
- Title: Vulnerability discovery in powerline communication
- Speaker: Fernando Alves
- Title: Distribution, fault tolerance & consistency in SDN control: Pick three
- Speaker: Andre Mantas
 What: NavTalk, When: Friday, 2015-Dec-04, 12h00-14h00, Where: room C6.3.38
Title: Mechanisms to Enforce Dependability and Timeliness in Wireless Communications
Speaker: José Rufino
Title: Janus: A User-defined Cloud-backed Storage
Speaker: Ricardo Mendes
 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
 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)
 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
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
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
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
Title: Trusted Distributed Processing Over a Large State
Speaker: Bruno Vavala
Speaker: Radu Onica
Friday, 2015-June-05, 12h15-14h00, room C6.3.38
Title: SDN-based Network Monitoring Under Attack
Speaker: Ricardo Fonseca
Title: Fault Tolerant Precision Time Protocol for Smart Grids