- Symbolic Explainable AI- Enterprise Knowledge Graph- Ontology Engineering- Shacl - Reasoning- Triplestores- SPARQL

Teaching activities:-Semantic Web Teacher for the 5th year engineers POLYTECH (Option SISE) at Aix-Marseille university-JAVA-EE Teacher for the 5th year engineers POLYTECH (HUGO) at Aix-Marseille university

Currently, I am working at LIS-LAB (Laboratoire des Sciences de l'Information et des Systèmes) in Aix-Marseille university. I am representing my team within the European Union’s Horizon 2020 project, iMARECULTURE "Advanced VR, iMmersive serious games and Augmented REality as tools to raise awareness and access to European underwater CULTURal heritagE". We are working on:-Ontology Modeling (see: http://lov.okfn.org/dataset/lov/vocabs/arp)-Rules (SWRL) based geographic information system (GIS).-Data Linking (see our LOD dataset: https://datahub.ckan.io/dataset/xlendiamphorae)- JAVA + Python + OWL API + Eclipse + Triple Store + SWRL API, JSON-LD, Raphael.js + 3DHOP.js + YASGUI + Protégé, ,...My current work on ontology-based Web-Tools: -2D: http://www.lsis.org/groplan/svg/xlendi/xlendi.html-3D: http://www.lsis.org/groplan/hop/xlendiTimeLine/xlendi.html-Agisoft Python to OWL: https://github.com/benellefi/ExportAgisoftOWL-VR on Unity with SPARQL queries display #KnowledgeManagement #KnowledgeGraph #SemanticWeb #IA #semanticweb #ontologies #linkeddata #RDF

#SemanticWeb #Ontology #LinkedData #RDF #MachineLearningDuring my PhD, I represented my research team within the project Datalyse (www.datalyse.fr).My PhD dissertation entitled “Profile-based Dataset Recommendation for RDF Data Linking” based on machine learning techniques.My main PhD research contributions can be summarized in the following publications: -Mohamed Ben Ellefi, Zohra Bellahsene, Stefan Dietze and Konstantin Todorov. Dataset Recommendation for Data Linking: an Intensional Approach. In Proceeding of the 13th ESWC 2016; Crete, Grèce (2016).-Mohamed Ben Ellefi, Zohra Bellahsene, Stefan Dietze and Konstantin Todorov. Beyond Established Knowledge Graphs Recommending Web Datasets for Data Linking. In Proceeding of The 16th International Conference on Web Engineering (ICWE2016); Lugano, Switzerland (2016).-Manel Achichi, Mohamed Ben Ellefi, Danai Symeonidou, Konstantin Todorov. Automatic Key Selection for Data Linking. In Proceeding of the 20th International Conference on Knowledge Engineering and Knowledge Management (EKAW) 2016; Bologna, Italy.-Mohamed Ben Ellefi, Zohra Bellahsene, Konstantin Todorov. Datavore: A Vocabulary Recommender Tool Assisting Linked Data Modeling. International Semantic Web Conference (Posters & Demos) ISWC 2015; Bethlehem, PA, USA (2015).-Mohamed Ben Ellefi, Zohra Bellahsene, François Scharffe, Konstantin Todorov. Towards Semantic Dataset Profiling. In PROFILES@ESWC, Crete, Grèce, (2014).Google Scholar: https://scholar.google.fr/citations?MohamedBENELLEFI

Mémoire de recherche : Une nouvelle mesure sémantique pour la modularisation des ontologies de domaines.*Conception et développement d’une nouvelle mesure de degré de relation sémantique.*Intégration de la mesure dans un algorithme de modularisation d’ontologies.Technologies : Java – OWL API – OWL ToolsOutils : Protégé – Eclipse

Stage Projet Fin d’étude : conception et développement d’un système d’information pour MCM*Gestion d’ordre de mission, gestion de clientèle, gestion des RHTechnologies : HTML– CSS –JQuery –JAVA SCRIPT – JSP – JAVA – EJB - JSF , ...SGBD : MySQLIDE : Eclipse