Romaric Ludinard

Research interests/

• Distributed algorithms
• Large-scale systems
• Byzantine and malicious behaviours
• Performance evaluation
• Resilience and dependability evaluation
• Quantitative assessment of system dependability aspects
• Blockchain-based protocols

Former projects and research activities/

• 2015-2017 --- Associate professor at ENSAI, Head of Data Scientist specialization, Rennes / CREST UMR9194
• 2015 --- Post-doc researcher at Research Center for Cyber Intelligence and Information Security, Université La Sapienza, Rome
• 2014-2015 --- Temporary lecturer and research at University of Rennes 1 / Inria CIDRe team
• 2011-2014 --- PhD Student in Dionysos team
• 2010-2011 --- Research engineer in Dali project / Supélec SSIR team
• 2007-2010 --- Research engineer in P2PIm@ges project / Inria ADEPT team
• 2006-2007 --- Research engineer in DADDi project / Inria ADEPT team
• 2006 --- Internship at France Télécom R & D--- Implementation and simulation of p2p protocols
• 2005 --- Internship at Inria--- Implementation and simulation of SAM : self-* atomic memory for P2P systems

Publications/

Journals :

• Performance Evaluation of a Peer-to-peer Backup System using Buffering at the Edge pdf
  Computer Communications, October 2014
  with A. Kermarrec, E. Le Merrer, N. Le Scouarnec, P. Maillé, G. Straub and A. Van Kempen
  
  
• An Invariant-based Approach for Detecting Attacks against Data in Web Applications
  International Journal of Secure Software Engineering, January 2014
  with E. Totel, F. Tronel, V. Nicomette, M. Kaaniche, E. Alata, R. Akrout and Y. Bachy
  
  
• Markov Chains Competing for Transitions: Application to Large-Scale Distributed Systems pdf
  Methodology and Computing in Applied Probability, June 2013
  with E. Anceaume, F. Castella and B. Sericola
  
  
• Performance evaluation of large-scale dynamic systems pdf
  ACM SIGMETRICS Performance Evaluation Review, 2012
  with E. Anceaume and B. Sericola
  
  
• Dependability Evaluation of Cluster-Based Distributed Systems pdf
  International Journal of Foundations of Computer Science, August 2011
  with E. Anceaume, F. Brasileiro, B. Sericola and F. Tronel
  
  

Regular papers :

• Bitcoin a Distributed Shared Register
  Proceedings of the 19th International Symposium on Stabilization, Safety, and Security of Distributed Systems (SSS'17), 2017
  with E. Anceaume, M. Potop-Butucaru, F. Tronel
  
  
• Handling Bitcoin Conflict through a Glimpse of Structure
  Proceedings of the 32nd ACM Symposium on Applied Computing (SAC'17), 2017
  with T. Lajoie-Mazenc and E. Anceaume
  
  
• Safety Analysis of Bitcoin Improvement Proposals
  Proceedings of the 15th IEEE Symposium on Network Computing and Applications (NCA 2016)
  with E. Anceaume, T. Lajoie-Mazenc and B. Sericola
  
  
• Anomaly Characterization in Large Scale Networks pdf
  Proceedings of the 44th Annual IEEE/IFIP International Conference on Dependable Systems and Networks (DSN 2014)
  with E. Anceaume, Y. Busnel, J.L. Marchand, E. Le Merrer and B. Sericola
  
  
• FixMe: A Self-organizing Isolated Anomaly Detection Architecture for Large Scale Distributed Systems pdf
  Proceedings of the 16th International Conference On Principles Of DIstributed Systems (OPODIS 2012)
  with E. Anceaume, E. Le Merrer, B. Sericola and G. Straub
  
  
• Detecting Attacks against Data in Web Applications pdf
  Proceedings of the 7th International Conference on Risks and Security of Internet and Systems (CRISIS 2012)
  with E. Totel, F. Tronel, V. Nicomette, M. Kaaniche, E. Alata, R. Akrout and Y. Bachy
  
  
• Modeling and Evaluating Targeted Attacks in Large Scale Dynamic Systems pdf
  Proceedings of the 41st Annual IEEE/IFIP International Conference on Dependable Systems and Networks (DSN 2011) - The Performance and Dependability Symposium (PDS)
  with E. Anceaume and B. Sericola and F. Tronel
  
  
• Analytic Study of the Impact of Churn in Cluster-Based Structured P2P Overlays pdf
  Proceedings of the IEEE International Conference on Communications (ICC 2010)
  with E. Anceaume and B. Sericola
  
  
• PeerCube: An Hypercube-based P2P overlay robust against collusion and churn pdf
  Proceedings of the IEEE International Conference on Self-Adaptive and Self-Organizing Systems (SASO 2008)
  with E. Anceaume and F. Brasileiro and A. Ravoaja
  
  

Briefs :

• Relying on consensus does not make Bitcoin safer
  Fast Abstract in the 46th Annual IEEE/IFIP International Conference on Dependable Systems and Networks (DSN 2016)
  with E. Anceaume and B. Sericola
  
  
• Anomaly Filtering in Large Scale Systems pdf
  32nd International Symposium on Reliable Distributed Systems (SRDS 2013)

• Brief Announcement: Induced Churn to Face Adversarial Behavior in Peer-to-Peer Systems pdf
  Proceedings of the 11th International Symposium on Stabilization, Safety, and Security of Distributed Systems (SSS 2009)
  with E. Anceaume and B. Sericola and F. Tronel and F. Brasileiro
  
  

Workshops :

• A Self-organising Isolated Anomaly Detection Architecture for Large Scale Systems
  Nem Summit 2013
  with E. Anceaume, E. Le Merrer, B. Sericola and G. Straub
  
  
• Analytical Study of Adversarial Strategies in Cluster-based Overlays pdf
  Proceedings of the 2nd International Workshop on Reliability, Availability, and Security (WRAS) in conjunction with the International Conference on Parallel and Distributed Computing, Applications and Technologies (PDCAT) 2009
  with E. Anceaume and B. Sericola and F. Tronel and F. Brasileiro
  
  

National conferences :

• Anomaly Characterization Problems pdf
  Actes des 16èmes Rencontres Francophones pour les Aspects Algorithmiques des Télécommunications (AlgoTel 2014)
  with E. Anceaume, Y. Busnel, E. Le Merrer, J. L. Marchand, B. Sericola and G. Straub
  
  
• FixMe : détection répartie de défaillances isolées pdf
  Actes des 15èmes Rencontres Francophones pour les Aspects Algorithmiques des Télécommunications (AlgoTel 2013)
  with E. Anceaume, E. Le Merrer, B. Sericola and G. Straub
  
  
• RRABIDS, un système de détection d’intrusion pour les applications Ruby on Rails pdf
  Actes du Symposium sur la sécurité des technologies de l'information et des communications (SSTIC 2011)
  with L. Le Hennaff and É. Totel
  
  
• Modélisation et Evaluation des Attaques Ciblées dans un Overlay Structuré pdf
  Actes du Colloque Francophone sur l'Ingenierie des Protocoles (CFIP 2011)
  with E. Anceaume, B. Sericola and F. Tronel
  
  

Committees/

• General chair of 19èmes Rencontres Francophones sur les Aspects Algorithmiques des Télécommunications (AlgoTel) and 2èmes Rencontres Francophones sur la Conception de Protocoles, l’Évaluation de Performance et lExpérimentation des Réseaux de Communication (CoRes), Quiberon 2017
• Publication and Publicity chair of 19th International Conference on Principles of Distributed Systems OPODIS'15
  
• TPC Member of Symposium sur la sécurité des technologies de l'information et des communications 2012, 2013, 2014
  

Teaching/

2017 - 2018

• Everything you wanted to know about blockchains and you were affraid to ask IMT Engineer's degree
  
• Network protocols IMT Engineer's degree
  
• Network programming IMT Engineer's degree
  
• Big data architectures IMT Engineer Master's degree
  

2016 - 2017

• Distributed systems ENSAI Engineer's degree, 3rd year
  
• Object Oriented Programming courseENSAI Engineer's degree, 1st year
  
• Object Oriented Programming projectENSAI Engineer's degree, 1st year
  

2015 - 2016

• Distributed systems ENSAI Engineer's degree, 3rd year
  
• Parallelized systems ENSAI Msc Big Data
  
• Basic programmingENSAI Engineer's degree, 1st year
  
• Object Oriented Programming projectENSAI Engineer's degree, 1st year
  

2014 - 2015

• Atelier de conception objet Master 1, ISTIC
  
• Algorithmique des graphes Licence 3, ISTIC
  
• Compléments mathématiques pour l'informatique Licence 2, Université Rennes 1
  
• Algorithmique et programmation Licence 3, ISTIC
  
• Algorithmique et programmation fonctionelle Licence 1, Université Rennes 1
  
• Bureautique Licence 1, Université Rennes 1
  
• Mises à niveau en informatique Licence 3, ISTIC
  

2013 - 2014

• Object Oriented Programming Lab sessions at the ENSAI
  

Patents/

• Network system and method for checking plausibility of a value returned by a device
  Patent N° 14306449.1, 2014.
  
  E. Le Merrer, N. Le Scouarnec
  
  
• Method for isolated anomaly detection in large-scale audio/video/data processing systems.
  Patent N° 13306029.3 of the European Patent Office, July 2013.
  
  with E. Le Merrer, B. Sericola, G. Straub
  
  
• Method for isolated anomaly detection in large-scale data processing systems.
  Patent N° 12306237.4 of the European Patent Office, October 2012.
  
  with E. Le Merrer, B. Sericola, G. Straub
  
  

Romaric Ludinard - Email: romaric.ludinard -AT- inria.fr