Olfa Slama

I am currently PhD researcher in the second year in the Institute for Research in IT and Random Systems (IRISA) labs in France within the Shaman team and a contractual teacher in Enssat, a French graduate engineering school specializing in applied science and technology which is located in Lannion, Brittany, France. See my CV

Research interests

Graph database, fuzzy querying, preference queries, Fuzzy database summaries, Data quality.

DEGREES

[Since Nov. 2014] - PhD. student in Computer Science - Engineering School of Applied Science and Technology (ENSSAT), France

PhD Subject Title: Data Quality Management of Heterogeneous Graph data.
Supervisors: Olivier Pivert and Virginie Thion.
Laboratory: IRISA (University of Rennes 1), Data and Knowledge Management Department, Team SHAMAN
This thesis deals with the general problem of integrating and then analysing heterogeneous data, for instance stemming from internal data sources of a company and external sources like open data published on the Web. We tackle this subject in cooperation with a start-up named SEMSOFT (Rennes, FRANCE), which produces a software chain for heterogeneous data integration. For this purpose, we defined a fuzzy extension of the SPARQL language called FURQL that goes beyond the previous proposals in terms of expressiveness inasmuch as it makes it possible i) to deal with fuzzy RDF data model, and ii) to express fuzzy preferences on data and on the structure of the data graph. For our ongoing work, we aim to extend the FURQL language with fuzzy quantifiers like we did in a previous work for the FUDGE language and integrate to this framework quality-related metadata (about freshness, reliability and so on) which are in general of a fuzzy nature. This thesis is partially funded by the French DGE (Direction Générale des Entreprises) under the project ODIN (Open Data INtelligence).

[2012 - 2014] - MSc. Science and Technology of Business Intelligence - High Institute of Management of Tunis (ISGT), Tunisia

Dissertation titled: About alpha-cuts in bipolar and multipolar queries in relational databases.
Laboratory: IRISA (University of Rennes 1), Data and Knowledge Management Department, Team SHAMAN

[2009 - 2012] - BSc. Computer Management - High Institute of Management of Tunis (ISGT), Tunisia

Subject: Design and development of a secure web application for the management and monitoring of credit files in Java Enterprise Edition.
Company: BIAT Tunis, International Arabic Bank of Tunisia

[2008 - 2009] - Bachelor of Science. Mathematics field - High School of Tunisia

PROFESSIONAL EXPERIENCE

[Since Nov. 2014] - Doctoral researcher - IRISA (University of Rennes 1), Data and Knowledge Management Department, Team SHAMAN

[2012 - 2014] - Research intern - IRISA (University of Rennes 1), Data and Knowledge Management Department, Team SHAMAN

[2009 - 2012] - Graduate Trainee - BIAT Tunis, International Arabic Bank of Tunisia

The design and development of a secure web application for the management and monitoring of credit files in Java Enterprise Edition.

RESEARCH ACTIVITIES

[11 Mars 2017] - Research Volunteer - Open House Day 2017 - ENSSAT, France

Giving a research talk about our recent work.

[Nov. 2016] - FURQL : une extension floue du langage SPARQL - Ecole Nationale Supérieure de Mécanique et d'Aérotechnique (ISAE-ENSMA) - Poitiers, France.

Paper presented in the French conference BDA'16, Poitiers, France, 15-18 november 2016.

[Nov. 2016] - Requêtes quantifiées floues structurelles sur des bases de données graphe - University of La Rochelle - La Rochelle, France.

Paper presented in the French conference LFA'16, La Rochelle, France, 3-4 November 2016.

[Sept. 2016] - Fuzzy Quantified Structural Queries to Fuzzy Graph Databases - Château de Valrose, University Nice Sophia Antipolis - Nice, France.

Paper presented at the 10th International Conference on Scalable Uncertainty Management (SUM'16), Nice, France, 21-23 September 2016.

[July 2016] - An Extension of SPARQL with Fuzzy Navigational Capabilities for Querying Fuzzy RDF Data - Vancouver Convention Centre - Vancouver, Canada.

Paper presented at the 25th IEEE International Conference on Fuzzy Systems (Fuzz-IEEE'16), Vancouver, Canada, 24-26 July 2016.

[June 2016] - A Fuzzy Extension of SPARQL for Querying Gradual RDF Data - Grenoble Institute of Technology (Grenoble INP) - Grenoble, France.

Poster presented at the 10th IEEE International Conference on Research Challenges in Information Science (RCIS'16), Grenoble, France, 1-3 June 2016.

[June 2016] - SUGAR: A Graph Database Fuzzy Querying System - Grenoble Institute of Technology (Grenoble INP) - Grenoble, France.

Poster & Demo presented at the 10th IEEE International Conference on Research Challenges in Information Science (RCIS'16), Grenoble, France, 1-3 June 2016.

[April 2016] - SPARQL Extensions with Preferences: a Survey - Palazzo dei Congressi - Pisa, Italy.

Paper presented at the 31st ACM Symposium on Applied Computing (SAC'16), Pisa, Italy, 4-8 April 2016.

[28 Fev. 2016] - Research Volunteer - Open House Day 2016 - ENSSAT, France

Giving a research talk about our work.

[Sept. 2015] - Summer Research Student - EDBT Summer School 2015- Palamos, Spain

Participant in the "12th EDBT Summer School" about Graph Data Management.

[Sept. 2013] - MLSS 2013 - Hammamet TUNISIA

Participant in a Summer School "Machine Learning Summer School on Big Data".

[Mar. 2013] - IWBBIO 2013 - Granada SPAIN

Participant in the "International Work-Conference on Bioinformatics and Biomedical Engineering".

TEACHING ACTIVITIES

[Sept. 2016] - [June 2017] - Research assistant - Engineering School of Applied Science and Technology. (ENSSAT), France - (64h/Year)

  • Algorithmics & C programming language (TP & TD/level 3): Course supervisor: François Goasdoué.
  • PHP programming language(TP/level 4): Course supervisor: Vincent Barreaud.
  • PHP 5 (object-oriented programming) (TP/level 3): Course supervisor: Olivier Soufflet.
  • Data Structures (TP/level 3): Course supervisor: Olivier Pivert.

[Sept. 2015] - [June. 2016] - Research assistant - Engineering School of Applied Science and Technology (ENSSAT), France - (64h/Year)

  • Algorithmics & C programming language (TP & TD/level 3): Course supervisor: François Goasdoué.
  • Relational Databases "MySQL" (TP/level 3): Course supervisor: Olivier Pivert.

[Sept. 2013] - [Dec. 2013] - Contractual teacher - High Institute of Management of Tunis (ISGT) - Tunisia

Teacher of practical work "Service Oriented Architecture" (level 3).

PUBLICATIONS*

* The order of the authors in the paper is alphabetically sorted and is not based on the importance of contributions.

International Conferences

O. Pivert, O. Slama, and V. Thion. Fuzzy Quanti ed Queries to Fuzzy RDF Databases. In Proc. of the 26th IEEE International Conference on Fuzzy Systems (Fuzz-IEEE'17), Naples, Italy, 2017.
O. Pivert, O. Slama, and V. Thion. Fuzzy Quantified Structural Queries to Fuzzy Graph Databases. In Proc. of the 10th International Conference on Scalable Uncertainty Management (SUM'16), Nice, France, 2016. see presentation
O. Pivert, O. Slama, and V. Thion. An Extension of SPARQL with Fuzzy Navigational Capabilities for Querying Fuzzy RDF Data. In Proc. of the 25th IEEE International Conference on Fuzzy Systems (Fuzz-IEEE'16), Vancouver, Canada, 2016. see presentation
O. Pivert, O. Slama, G. Smits, and V. Thion. A Fuzzy Extension of SPARQL for Querying Gradual RDF Data. In Proc. of the 10th IEEE International Conference on Research Challenges in Information Science (RCIS'16), poster session, Grenoble, France, 2016. see poster
O. Pivert, O. Slama, G. Smits, and V. Thion. SUGAR: A Graph Database Fuzzy Querying System. In Proc. of the 10th IEEE International Conference on Research Challenges in Information Science (RCIS'16), demo session, Grenoble, France, 2016. see poster
O. Pivert, O. Slama, and V. Thion. SPARQL Extensions with Preferences: a Survey. In Proc. of the 31st ACM Symposium on Applied Computing (SAC'16), Pisa, Italy, 2016. see presentation
J. Akaichi, L. Lietard, D. Rocacher, O. Slama: On the Qualitative Calibration of Bipolar Queries. In Proc. of the 22nd International Symposium on Methodologies for Intelligent Systems (ISMIS'15), Lyon, France, 2015.

French Conferences

O. Pivert, O. Slama, and V. Thion. FURQL : une extension floue du langage SPARQL. In Actes des 32èmes Journées Bases de Données Avancées (BDA'16), Poitiers, France, 2016. see presentation
O. Pivert, O. Slama, and V. Thion. Requêtes quantifiées floues structurelles sur des bases de données graphe. In Actes des 25èmes Rencontres Francophones sur la Logique Floue et ses Applications (LFA'16), La Rochelle, France, 2016. see presentation

CONTACT

  • Address

    Mss. Olfa Slama
    Site 3 - Office 223J
    6 Rue de Kerampont CS 80518 22305 Lannion Cedex FRANCE
  • Phone

    02 96 46 90 86
  • Email