Team gemo

Overall Objectives
Scientific Foundations
Application Domains
New Results
Contracts and Grants with Industry
Other Grants and Activities

Section: Other Grants and Activities

National Actions

In France, close links exist with groups at Orsay (databases, V. Benzaken and N. Bidoit; bio-informatics, C. Froidevaux; machine learning, M. Sebag; information visualization, J.-D. Fekete), with the Cedric Group at CNAM-Paris; some INRIA groups (Dahu, L. Segoufin, at INRIA-Saclay, Atlas, P. Valduriez and DistribCom, A. Benveniste, at INRIA-Bretagne; Exmo, J. Euzenat, at INRIA Rhone-Alpes; Mostrare at INRIA-Nord-Europe); the BIA group at INRA (P. Buche, C. Dervin), the GRIMM of the University of Toulouse Le Mirail (O. Haemmerlé), the LIRIS of the University of Lyon 1 (M. Hacid), the LIRMM of the University of Montpellier (M. Chein, M-L. Mugnier), the LI of the University of Tours (G. Venturini), and the UMPA at École normale supérieure de Lyon (Y. Ollivier).


Codex is a research project supported by the ANR Domaines Emergents call (2009-2012), coordinated by I. Manolescu ( ). The partners are: the MOSTRARE group of INRIA Lille (J. Niehren), the Database group from LRI (D. Colazzo, Université Paris Sud-11), the PPS Laboratory from University of Paris 7 (G. Castagna), the University of Blois (M. Halfeld-Ferrari), the University of Paris 1 (F. Gire), the WAM group of INRIA Rhône-Alpes, and the Innovimax start-up (M. Zergaoui). The project studies optimization, distributed processing and coordination, and adaptation techniques to cope with XML document dynamicity. Within CODEX we have spent significant effort developing and testing ViP2P, an XML content sharing platform which scales up to hundreds of peers [38] , [38] .

ANR Dataring

The DataRing project (2008-2011) lead by INRIA-Sophia (Patrick Valduriez) includes also U. Grenoble (Marie-Christine Rousset) and Teleco-ParisTech (Pierre Senellart). The project addresses the problem of P2P data sharing for online communities, by offering a high-level network ring across distributed data source owners. Users may be in high numbers and interested in different kinds of collaboration and sharing their knowledge, ideas, experiences, etc. Data sources can be in high numbers, fairly autonomous, i.e. locally owned and controlled, and highly heterogeneous with different semantics and structures. What we need then is new, decentralized data management techniques that scale up while addressing the autonomy, dynamic behavior and heterogeneity of both users and data sources.

ACI DocFlow

DocFlow is a research project supported by the ANR Masses de données (2007-2009) with the Distribcom team at INRIA-Rennes (Albert Benveniste) and the Méthodes Formelles group at Labri-Bordeaux (Anca Muscholl). The topic is the analysis, monitoring, and optimization of Web documents and services. It builds on Active XML, a formalism for data exchange across peers developed by Gemo. The project aims at achieving a convergence of data and workflow management over the Web through the concept of active peer-to-peer documents. It is finishing this year.

ANR GEONTO project

The objective of this ANR MDCO project (2008-2011), is to make data in the geographic domain inter-operate. We focus on two main goals. On one hand, we aim at integrating heterogeneous geographic databases using schema matching techniques. On the other hand, we aim at querying a large collection of textual documents which are more various and for a larger readership than databases just mentioned before. This project is a collaboration between COGIT-IGN (Sébastien Mustière), the IC3 group at IRIT - Université Paul Sabatier (Nathalie Aussenac) and the DESI group at LIUPPA - Université de Pau et des Pays de l'Adour (Mauro Gaio). The home page of the project could be found at: .


The objective of this ANR is to analyze the problems surrounding the use of semi-structured databases in social sciences. This ANR regroups both computer science and sociology laboratories. The contract has ended in July 2009. The results of our work led to the publication of [29] .

ANR UNLOC project

L. Simon is the coordinator of the ANR BLANC project about "incomplete search for UNSAT", which is an important theoretical and practical question. This projects started in early 2009 and includes phycisists from Orsay and researchers from Univ. Artois (CRIL, Lens), Univ. Amiens and Univ. Marseille.

Digiteo EDIFlow project

This project, led by I. Manolescu, is a collaboration between data management and information visualisation researchers (with V. Benzaken from LRI and J.-D. Fekete from INRIA AVIZ). The purpose is to study models and build a corresponding platform for efficient data-intensive workflow systems. A first prototype, ReaViz, has been developed on top of an industrial-strength database and demonstrated this year [37] . It enables the declarative specification of a workflow via an XML file, and automatically compiles it into a database application. The integration with the InfoViz toolkit developed in AVIZ remains to be done.

Digiteo SHIRI project

SHIRI is a research project funded by the Ile de France region as a Digiteo project which started on Oct. 1st 2007 and will last until Sept. 30th, 2011. It involves two partners of Digiteo, Supelec and the University of Paris-Sud. The aim of SHIRI is to design an annotation system to improve the relevance of the search on the Web when resources contain both semi-structured and textual data.


The SIRASAS (“Stratégies Innovantes et Robustes pour l'Autonomie des Systèmes Aéronautiques et Spatiaux") project, funded by the FRAE (“Fondation de Recherche pour l'Aéronautique et l'Espace"), has for partners: IMS Bordeaux (coordinator), SATIE-ENS Cachan, LAAS-CNRS Toulouse, CRAN Nancy, LRI Paris-Sud, ONERA Toulouse, CNES Toulouse, Airbus Toulouse and Thales Alenia Space Cannes. It started on October 2007 and will end on September 2010, but the effective participation of Gemo is concentrated during the second half part. We work on space applications: on one side on the case study which is a rendezvous mission between two spacecrafts in Mars orbit with the task of detecting and isolating nozzles failures; on the other side on a more prospective topic which is studying reconfiguration task and its coupling with diagnosis in an autonomy context.

Participation to evaluation committees

P. Dague has participated to the evaluation committees of the thematic ANR program ARPEGE (“Systèmes Embarqués et Grandes Infrastructures”) and of the non thematic ANR programs “Blanc” and “Jeunes Chercheuses et Jeunes Chercheurs”. C. Reynaud has participated to the evaluation committee of the ANR program CONTINT and of the CAPERS-COFECUB program.


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