I am currently Assistant Professor in Paris area, at the
University of Cergy-Pontoise,
IUT of Cergy-Pontoise member of the University of Paris Seine
, in the Métiers du Multimédia et de l'Internet - in short,
MMI - department, and I am conducting my research
activities in the Equipes Traitement de l'Information et Systèmes research laboratory (ETIS Lab),
Multimedia Indexation and Data Integration research team (MIDI). I have joined the University of Cergy-Pontoise
in 2011, after defending my PhD in 2010 in the Laboratoire des Sciences du Numérique de Nantes
research laboratory (LS2N Lab), Data User Knowledge (DUKe) research team,
Polytech'Nantes, University of Nantes.
My research activity is positioned in the data analytics research area, and I am particularly interested in mining big datasets by exploiting at the same time additional community knowledge, usually expressed in the form of semantically enriched information represented by ontologies or other graph like structures. During my PhD I proposed a new approach of post-processing association rules integrating user knowledge under the form of ontologies.
Since 2011, when I joined the ETIS Lab, I have significantly opened up my area of interest by starting collaborations with my team colleagues, but also with a linguist colleague from the MMI department and several cultural institutions (Laboratoire de Recherche des Monuments Historiques, Centre de Recherche et de Restauration des Musées de France, Centre de Recherche sur la Conservation des Collections, Louvre Museum) via different projects. In these past years, I have worked on different research problems related to data analytics and/or user/community knowledge management which are described in the Research page.
In 2018, I initiated the working group DAHLIA: DigitAl Humanities and cuLtural herItAge: management and analysis of data and knowledge and since May 2018, I am an elected member of the direction Council of the Digital Hummanities Institute of the University of Cergy-Pontoise.
Currently, I am working along 3 directions: (1) mining association rules based on disjunctive frequent patterns made up of unfrequent items that are semantically close, (2) mining frequent and homogeneous closed itemsets, and (3) mining frequent itemsets with vertical data layout in MapReduce.
Here, I am studying the problem of predicting the state of an OPN at time t+1, knowing its state at all the previous $t$ timestamps for online personal networks. In order to tackle this problem, we make a comparative study of existing evolution models for OSNs, and we test their applicablility to OPNs on OPNs from the DBLP database (https://datahub.io/fr/dataset/dblp).
In the area of knowledge management and extraction for Digital Heritage, I work towards two directions: (1) build an ontological model to solve interoperability issues in cultural heritage area (PARCOURS and PatrimEph project funded by PATRIMA LabEx), and (2) study political discourse in Twitter.
I study here the solutions to publishing semantic trajectory data (a semantic trajectory is a raw trajectory cut into labeled stops and movings where a label is a semantic place) while guaranteeing the protection of sensitive users data.
Oct 2016 - now Alexandros Kontarinis "Mining and Analysing enriched trajectories - Application to the trajectories of the visitors of a museum" (collaboration with Louvre Museum)
Oct 2014 - now Sarah Djemili "Egocentric online social networks: algorithms for information flow and community formation"
Oct 2013 - June 2015 Jean-Philippe Attal "Online social networks analysis in parallel environments"
2012 - 2015 Inès Hillali "Mining disjunctive patterns"
2017-2019 Inès Bannour (PARCOURS project)
2014-2017 Cheikh Niang (PARCOURS project)
2016-2017 Nader Hassine
2015-2016 Jalel Haji
2015-2016 Naoual Haddioui
2014-2015 Haile Misgna
2013-2014 Pierre Thomazo
2013-2014 Abir Ghariani
2013-2014 Sarah Djemili
2007-2008 Andrei Olaru
2006-2007 Loic Glimois
2016-2017 Sofiane Khodja
2017-2018 Mohammed Errahmani
2014-2015 Alexandre Noel
2014-2015 Nicolas Noel
2014-2015 Yuxuan Zhang
2013-2014 Pierre Thomazo
2013-2014 Youness Mourtaji
2017 - 2018 Limited participation in the ANTIMOINE project - 2013 ANR Call
2016 - 2019 "TRAJECTOIRES: Mining and Analysing of enriched trajectories - Application to the trajectories of the visitors of a museum" (collaboration with Louvre Museum) - 2016 LabEx PATRIMA Call
2016 - 2017 "#Idéo2017: development of a tool for analyzing political tweets during the election campaigns" - Printemps 2016 Fondation University of Cergy-Pontoise Call
2016 - 2017 "Cultural heritage and restoration-conservation: ontology for using a terminology referential common to different data sources 3" (PARCOURS3) - 2015 LabEx PATRIMA Call
2015 - 2016 PARCOURS2 - 2015 LabEx PATRIMA Call
2014 - 2016 "Privacy-Aware TRAjectory Mining" (PATRAM) - 2014 STIC-AmSud Call
2014 - 2015 "Data Management in the Cloud Era" - 2014 CONNECT2SEA Call
2014 - 2015 "Trajectory mining among indoor moving objects applied to Cultural Institutions" - BQR ENSEA Call
2013 - 2015 PARCOURS - 2013 LabEx PATRIMA Call
2013 - 2015 "Gestion Optimisée des Données dans les nuages" (GOD) - 2013 STICAsia Call
2013 - 2014 "Datajournalism and digital humanities: the case of political lexique" - Printemps 2013 Fondation Université Cergy-Pontoise Call
XML and Semantic Web
Object Oriented Programming / Java
HTML / CSS / Bootstrap
2018 - now Responsible of the specialization "Parcours Technologique de Grade Licence" in the DUT MMI.
2015 - 2017 Responsible of the specialization "Communication and digital medias" in 2nd year of DUT MMI.
2015 - 2017, 2018 - now In charge of the tutored projects (projets tuteurés) for the 2 years of DUT MMI. In 2015 we collaborated for these projects with the SNSM association, and this year we are collaborating with Centre d'Art d'Enghien; the students were supposed to produce in the 1st case a video, and in the 2nd case a web site.
2012 - 2014 In charge of the organization of the Time Table for the 2 years of DUT MMI.
2018 - now Co-animateur of the DAHLIA working group supported by the EGC Association
2018 - now Elected member of direction Council of the Digital Hummanities Institute of the University of Cergy-Pontoise
2012 - 2017 Elected member of ETIS Lab's Council
2012 - now Elected member of Scientific EGC Association's board - vice treasurer
2012 - 2019 Editorial board member of the "1024 - Bulletin de la Société Informatique de France"
2018 Organisation Committee of the CMC-CORPORA 2019 Conference, Cergy-Pontoise, France.
2018 Organisation Committee of the 5th Winter School é-EGC on the theme "Privacy Preserving, reasoning, explaining". In conjunction with the 19th (French Speaking) Conference on Knowledge Extraction and Management (EGC2019), Metz, France.
2017 Organisation Committee of the 4th Winter School é-EGC on the theme "Social Networks". In conjunction with the 18th (French Speaking) Conference on Knowledge Extraction and Management (EGC2018), Paris, France.
2017 Organisation Committee of the Conference "Intelligent Territories: such a smart model? Paradoxical effects of a technological and social mutation" (TERRI'2017), 22-24 March 2017, Cergy-Pontoise, France. This conference is supported by all the Institutions part of the COMMUE Université Paris Seine, and by the COMMUE itself.
2016 Organisation Committee of the 3rd Winter School é-EGC on the theme "Semantic Web". In conjunction with the 17th (French Speaking) Conference on Knowledge Extraction and Management (EGC2017), 23-27 January 2017, Grenoble, France.
2016 Organisation Committee of the 2nd Winter School é-EGC on the theme "Pattern Mining". In conjunction with the 16th (French Speaking) Conference on Knowledge Extraction and Management (EGC2016), 18-22 January 2016, Reims, France.
2014 Organization Committee of the "Data Management in the Cloud Era" Workshop, Kuala Lumpur, Malaysia, 8 October 2014 (partially funded by the CONNECT2SEA project).
2013 Organization Committee of the 2nd International Workshop on Open Data (WOD), Paris, 3 June 2013.
2013 Organization Committee of the Open Data Tutorials, Paris, 29-31 May 2013.
2012 - 2016 Organization of the Journée des Doctorants of ETIS Lab.
2007 - now Organization Committee of the French-speaking Conference on Data and Knowledge Management ("Extraction et Gestion des Connaissances") (EGC 2008, EGC2009, EGC2010, EGC2011, EGC2012, EGC2013, EGC2014, EGC2016, EGC2017, EGC2018, EGC2019) - in charge of registrations and billing (approx 240 participants): registration web site, in contact with the participants, and billing. The EGC conference is organized by the "Extraction et Gestion de Connaissances" (EGC) Association.
Since 2006 Non official board member of the EGC Association "Extraction et Gestion des Connaissances"
(official since 2012):
- till 2009: Maintenance (in collaboration with Julien Blanchard and Jérôme David till 2008) of the web site of the association; - till 2009: Papers' abstracts indexation of EGC (2003 - 2009).
2006 - 2007 Organization committee of the workshop "Modélisation des connaissances", chair Henri Briand jointly organized with "Extraction et Gestion de Connaissances" 2007 (EGC 2007) , Namur, Belgique.
Since 2019 ESWC (Extended Semantic Web Conference)
Since 2018 CIKM (International Conference on Information and Knowledge Management)
Since 2017 WWWW (The Web Conference)
Since 2017 ISWC (International Semantic Web Conference)
Since 2014 ISIP (International Workshop on Information Search, Integration, and Personalization)
Since 2013 EGC (Extraction et Gestion des Connaissances)
2018 DAHLIA (DAHLIA workshop jontly organized with the EGC conference 2019)
2018 INS (Information Sciences), ICDM (International Conference on Data Mining)
2017 INS (Information Sciences), DSAA (International Conference on Data Science and Advanced Analytics)
2016 INS (Information Sciences), ICDM (International Conference on Data Mining), IJDMMM (International Journal of Data Mining, Modelling and Management)
2015 Expertise dossier CIFRE, IJDMMM (International Journal of Data Mining, Modelling and Management), DSAA (International Conference on Data Science and Advanced Analytics)
2013 CIKM (ACM International Conference on Information and Knowledge Management), ICDM (International Conference on Data Mining)
2012 CIKM (ACM International Conference on Information and Knowledge Management), ASONAM (IEEE International Conference on Advances in Social Networks Analysis and Mining), ICDM (International Conference on Data Mining)
2011 ASONAM (International Conference on Advances in Social Networks Analysis and Mining), ICDM (International Conference on Data Mining), ISMIS2011 (19th International Symposium on Methodologies for Intelligent Systems 2011), SIAM (International Conference on Data Mining)
2010 SIAM (International Conference on Data Mining), COMPSTAT (19th International Conference on Computational) Statistics, TKDE (Transactions on Knowledge and Data Engineering, special issue Domaindriven Data Mining)
2015 - 2016 Participation as internal member in the Selection Committee for an Assistant Professor recruitment in 27th section at University of Cergy-Pontoise, department of Computer Science. Position profile: Databases and Machine Learning.
2013 - 2014 Participation as external member in the Selection Committee for an Assistant Professor recruitment in 27th section at University of Rennes 1, UFR ISTIC & IRISA (Data and Knowledge Management department). Position profile: Information systems and databases.
2013 - 2014 Participation as external member in the Selection Committee for an Assistant Professor recruitment in 27th section at University of Rennes 1, IUT de Lannion, Computer Science department & IRISA (Data and Knowledge Management department). Position profile: Information systems ands databases.
2012 - 2013 Participation as internal member (to represent the MMI department) in the Selection Committee for an Assistant Professor recruitment in 6th section (management/marketing) at IUT of Cergy-Pontoise, Métiers du Multimédia et de l'Internet department & THEMA.
2012 - now Representative of the MIDI team in the Communication Team of the ETIS Lab.
2013 - 2017 Representative of the dept MMI in the "Decision Board" (Commission de choix), and then of the "Limited Board" (Conseil restreint) of the IUT of Cergy-Pontoise.
2015, 2016 & Representative* of the dept MMI at the Rencontres du réseau Réseau International Universitaire de Création Numérique (RUN) (http://www.reseau-run.com/). Participation to RUN2015 in Toulon, RUN2016 in Rouyn-Noranda (Quebec) and RUN2017 in Sfax (Tunisie). The RUN meeting is organized in one week around two main objectives: (1) a two days research conference on a specific area, and (2) 48h of competition between groups of students on a multimedia project.