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News Archive

New cut-off date: 31/May/2012 - Scholarships for PhD in Computer Science and Engineering

24/Sep/2009: the Navigator's PhD student Henrique Moniz won the Best Student Paper Award at DISC 2009

09/Jul/2008: Paulo Sousa, a researcher from the Navigators team, won the IBM 2007 Scientific Award, with the work "Security and Availability through Proactive Resilience"

11/Feb/2008:
Scholarships for PhD in Computer Science and Engineering

20/Jan/2008:
2nd Workshop on Recent Advances on Intrusion-Tolerant Systems - WRAITS 2008

09/Jan/2007: Workshop on Recent Advances on Intrusion-Tolerant Systems - WRAITS 2007

21/Dec/2006:
Master/PhD at Carnegie Mellon University and University of Lisboa

25/Jun/2006: We are hiring

06/Jun/2006:
Site revamp

01/Jan/2006:
New Year, new projects: check our recently started european projects


Welcome > Papers > Technical Reports

Technical Reports


Timeout Adaptive Consensus: Improving Performance through Adaptation
Mônica Dixit, Henrique Moniz, António Casimiro
Department of Informatics, University of Lisboa


Benchmarking some Portuguese S&T system research units
Francisco M. Couto, Ivan Andrade, Pedro Gonçalves, Paulo Veríssimo
DI FCUL


Active Quorum Systems: Specification and Correctness Proof
Alysson Bessani
DI-FCUL-TR 2010-02


Handling self-citations using Google Scholar
Francisco M. Couto, Tiago Grego, Catia Pesquita, Paulo Veríssimo
International Journal of Scientometrics, Informetrics and Bibliometrics, 13:2, 2009


A Probabilistic Framework for Automatic and Dependable Adaptation in Dynamic Environments
Mônica Dixit, António Casimiro, Paulo Veríssimo, Paolo Lollini, Andrea Bondavalli
Department of Informatics, University of Lisboa


Cheap Intrusion-Tolerant Protection for CRUTIAL Things
Alysson Bessani, Paulo Sousa, Miguel Correia, Nuno Ferreira Neves, Paulo Veríssimo
DI-FCUL TR-2009-14


AIR Project Final Report
José Rufino, Sérgio Filipe
DI-FCUL Technical Report TR-07-35, Lisbon, Portugal, December 2007.


AIR Project Summary Report
José Rufino, Sérgio Filipe
DI-FCUL Technical Report TR-07-36, Lisbon, Portugal, December 2007.


Intrusion-Tolerant Protection for Critical Infrastructures
Alysson Bessani, Paulo Sousa, Miguel Correia, Nuno Ferreira Neves, Paulo Veríssimo
Technical Report DI/FCUL TR-07-8. Department of Computer Science, University of Lisboa. April 2007.


Proactive Resilience through Architectural Hybridization (extended version)
Paulo Sousa, Nuno Ferreira Neves, Paulo Veríssimo
Technical Report DI/FCUL TR-05-8. Department of Computer Science, University of Lisboa. May 2005.


How to Tolerate Half Less One Byzantine Nodes in Practical Distributed Systems
Miguel Correia, Nuno Ferreira Neves, Paulo Veríssimo
Technical Report DI/FCUL TR-04-6. Department of Computer Science, University of Lisbon. July 2004.


From Consensus to Atomic Broadcast: Time-Free Byzantine-Resistant Protocols without Signatures
Miguel Correia, Nuno Ferreira Neves, Paulo Veríssimo
Technical Report DI/FCUL TR-04-5. Department of Computer Science, University of Lisbon. June 2004.


Low Complexity Byzantine-Resilient Consensus
Miguel Correia, Nuno Ferreira Neves, Lau Cheuk Lung, Paulo Veríssimo
Technical Report DI/FCUL TR-03-25, Department of Computer Science, University of Lisbon. August 2003


Analysis and Design of Application Scenarios
G. Blair, K. Cheverst, H. Duran-Limon, A. Friday, G. Samartzidis, T. Sivaharan, Paulo Sousa, M. Wu
Technical Report DI/FCUL TR-03-21, Department of Computer Science, University of Lisbon. July 2003


Proof-of-concept prototypes
V. Cahill, António Casimiro, J. Kaiser, Pedro Martins, V. Reynolds, Paulo Sousa, Paulo Veríssimo, M. Wu
Technical Report DI/FCUL TR-03-20, Department of Computer Science, University of Lisbon. July 2003


The CORTEX Programming Model
G. Biegel, G. Blair, C. Brudna, V. Cahill, António Casimiro, S. Clarke, H. Duran-Limon, A. Fitzpatrick, A. Friday, B. Hughes, J. Kaiser, R. Meier, V. Reynolds, Paulo Veríssimo, M. Wu
Technical Report DI/FCUL TR-03-19, Department of Computer Science, University of Lisbon. July 2003


Preliminary Specification of Basic Services and Protocols
G. Blair, C. Brudna, V. Cahill, António Casimiro, R. Cunningham, H. Duran-Limon, J. Kaiser, Pedro Martins, Paulo Veríssimo
Technical Report DI/FCUL TR-03-18, Department of Computer Science, University of Lisbon. July 2003


Conceptual Model and Architecture of MAFTIA
A. Adelsbach, C. Cachin, Sadie Creese, Yves Deswarte, K. Kursawe, J.-C. Laprie, D. Powell, B. Randell, James Riordan, Peter Ryan, William Simmionds, R. J. Stroud, Paulo Veríssimo, M. Waidner, Andreas Wespi
Technical Report DI/FCUL TR-03-01, Department of Computer Science, University of Lisbon. Feb 2003


Lessons Learned with NavTech: a Framework for Reliable Large-Scale Applications
Paulo Veríssimo
Technical Report DI/FCUL TR-02-17, Department of Computer Science, University of Lisbon. December 2002


Intrusion-Tolerant Architectures: Concepts and Design.
Paulo Veríssimo, Nuno Ferreira Neves, Miguel Correia
Technical Report DI/FCUL TR-03-5, Department of Computer Science, University of Lisbon. April 2003


Intrusion Tolerance: Concepts and Design Principles. A Tutorial
Paulo Veríssimo
Technical Report DI/FCUL TR-02-6, Department of Computer Science, University of Lisbon. July 2002.


Complete Specification of APIs and Protocols for the MAFTIA Middleware
J. Armstrong, C. Cachin, Miguel Correia, A. Costa, Hugo Miranda, Nuno Ferreira Neves, Nuno Miguel Neves, J. A. Poritz, B. Randell, Lau Cheuk Lung, Luís Rodrigues, R. J. Stroud, Paulo Veríssimo, M. Waidner, I. S. Welch
Technical Report DI/FCUL TR-02-11, Department of Computer Science, University of Lisbon. jULY 2002


Preliminary definition of CORTEX system architecture
C. Brudna, V. Cahill, António Casimiro, R. Cunningham, J. Kaiser, R. Meier, Paulo Veríssimo
Technical Report DI/FCUL TR-03-17, Department of Computer Science, University of Lisbon. July 2003


Preliminary definition of CORTEX programming model
P. Barron, G. Biegel, V. Cahill, António Casimiro, S. Clarke, R. Cunningham, A. Fitzpatrick, G. Gaertner, B. Hughes, J. Kaiser, R. Meier, Paulo Veríssimo
Technical Report DI/FCUL TR-03-15, Department of Computer Science, University of Lisbon. July 2003


Preliminary definition of CORTEX interaction model
G. Biegel, C. Brudna, António Casimiro, J. Kaiser, C. Liu, C. Mitidieri, Paulo Veríssimo
Technical Report DI/FCUL TR-03-16, Department of Computer Science, University of Lisbon. July 2003


CORTEX: Towards Supporting Autonomous and Cooperating Sentient Objects
Paulo Veríssimo, V. Cahill, António Casimiro, K. Cheverst, A. Friday, J. Kaiser
Technical Report DI/FCUL TR-02-1, Department of Computer Science, University of Lisbon. Feb 2002


MAFTIA Conceptual Model and Architecture
A. Adelsbach, C. Cachin, Sadie Creese, Yves Deswarte, K. Kursawe, J.-C. Laprie, B. Pfitzmann, D. Powell, B. Randell, James Riordan, R. J. Stroud, Paulo Veríssimo, M. Waidner, Andreas Wespi
Technical Report DI/FCUL TR-01-10, Department of Computer Science, University of Lisbon. Nov 2001


Definition of Application Scenarios
G. Biegel, G. Blair, V. Cahill, António Casimiro, K. Cheverst, R. Cunningham, A. Fitzpatrick, A. Friday, G. Gaertner, B. Hughes, J. Kaiser, R. Meier, N. Riejers, Paulo Veríssimo
Technical Report DI/FCUL TR-03-14, Department of Computer Science, University of Lisbon. July 2003


First Specification of APIs and Protocols for the MAFTIA Middleware
Nuno Ferreira Neves, Paulo Veríssimo
Technical Report DI/FCUL TR-01-6. Department of Computer Science, University of Lisbon. September 2001


Service and Protocol Architecture for the MAFTIA Middleware
Paulo Veríssimo, Nuno Ferreira Neves
Technical Report DI/FCUL TR-01-1. Department of Computer Science, University of Lisbon. January 2001


The design of a COTS real-time distributed security kernel (extended version)
Miguel Correia, Paulo Veríssimo, Nuno Ferreira Neves
Technical report, Department of Computer Science, University of Lisbon, 2001


The middleware architecture of MAFTIA: A blueprint.
Paulo Veríssimo, Nuno Ferreira Neves, Miguel Correia
Technical Report DI/FCUL TR 00-6, Department of Computer Science, University of Lisbon, September 2000.


MAFTIA: Reference Model and Use Cases
C. Cachin, J. Camenisch, M. Dacier, Yves Deswarte, J.Dobson, D. Horne, K. Kursawe, J.-C. Laprie, J.-C. Lebraud, D. Long, T. McCutcheon, J. Muller, F. Petzold, B. Pfitzmann, D. Powell, B. Randell, M. Schunter, V. Shoup, Paulo Veríssimo, G. Trouessin, R. J. Stroud, M. Waidner, I. S. Welch
Technical Report DI/FCUL TR-00-5. Department of Computer Science, University of Lisbon. August 2000


Event Timestamping Tool: a simple PC based kernel to timestamp distributed events
Pedro Martins, António Casimiro
Technical Report DI/FCUL TR-00-4, Department of Informatics, University of Lisboa, July 2000


Timing Failure Detection with a Timely Computing Base.
António Casimiro, Paulo Veríssimo
Technical Report DI/FCUL TR-99-8, Department of Informatics, University of Lisboa, November 1999


The Timely Computing Base
Paulo Veríssimo, António Casimiro
Technical Report DI/FCUL TR-99-2, Department of Informatics, University of Lisboa, May 1999


CONFIANÇA NO FUNCIONAMENTO: Proposta para uma Terminologia em Português
Paulo Veríssimo, Rogério de Lemos
1989. INESC, Lisboa, Portugal


Real-Time Communication in Quasi-Synchronous Systems. Providing Support for Dynamic Real-Time Applications
Carlos Almeida, Paulo Veríssimo
May 1996. INESC, Lisboa, Portugal


Real-Time Group Communication in a Quasi-Synchronous System
Carlos Almeida, Paulo Veríssimo
November 1995. INESC, Lisboa, Portugal


Adaptive Synchronous Cooperation over Large Scale Networks
François Cosquer, Pedro Antunes, Nuno Guimarães, Paulo Veríssimo
August 1995. INESC, Lisboa, Portugal


Survey of Selected Groupware Applications and Supporting Platforms
François Cosquer, Paulo Veríssimo
July 1994. (Also available as Broadcast Technical Report 2nd Year Vol.1) (Submitted for publication)


The ROMANCE approach to replicated object management
Luís Rodrigues, Paulo Veríssimo
September 1993. IST - INESC, Lisboa, Portugal


A Framework for Structuring Group Support in LSDCs
Paulo Veríssimo, Werner Vogels, Luís Rodrigues
September 1993. INESC, Lisboa, Portugal


MESSAGE SLOTTING: Ensuring replica determinism in preemptive real-time systems
Luís Rodrigues, Paulo Veríssimo
1993 INESC, Lisboa, Portugal


A study on the inaccessibility characteristics of token-based standard LANs
José Rufino, Paulo Veríssimo
INESC Technical Report RT-26/92, Lisboa, Portugal. April 1992.


A study on the inaccessibility characteristics of the FDDI LAN
José Rufino, Paulo Veríssimo
INESC Technical Report RT-25/92, Lisboa, Portugal, March 1992.


A study on the inaccessibility characteristics of ISO 8802/5 Token-Ring LAN
José Rufino, Paulo Veríssimo
INESC Technical Report RT/24-92, Lisboa, Portugal, February 1992.


xAMp, a protocol suite for group communication
Luís Rodrigues, Paulo Veríssimo
January 1992. INESC, Lisboa, Portugal


Real-Time and Dependability Comparison of Delta-4/XPA and MARS systems
Sérgio Melro, Paulo Veríssimo
January 1992. INESC, Lisboa, Portugal


The performance of the xAMP protocol on Token-Bus and FDDI NAC's
Paulo Veríssimo, José Rufino, Henrique Fonseca, Luís Rodrigues
INESC Technical Report RT/101-91, Lisboa, Portugal, November 1991.


A posteriori Agreement for Clock Synchronization on Broadcast Networks
Luís Rodrigues, Paulo Veríssimo
March 1991 (Revised, March 1992). INESC, Lisboa, Portugal


AtomicMaze: Implementing a distributed computer game using AMp
Mário Baptista, Luís Rodrigues, Paulo Veríssimo
March 1989. INESC, Lisboa, Portugal