• 2024 "Evolution of Distributed Systems: Cluster Computing, Grid Computing, and Cloud Computing" The International Conference on Electrical, Computer, Telecommunication, and Energy Technologies, ECTE-Tech24, 17-18 December, 2024 University of Oum El Bouaghi, Algeria [slides]​

• 2024 "Brief  History  AI from: the perceptron to GenAI " Summer SUMMER CAMP 2024 - Future Foundation for Culture, Education, and Science. [slides]​

• 2023 "The scientific review proces: Managing the expectation ," STEM program. [slides]

• 2023 "Approach to teaching STEM program," STEM program. [slides]

• 2022 "Introduction to HPC and Bigdata ," TUSAIL Doctoral School3 at UTWENTE. [slides]

• 2021 "A Brief  History  BigData Era" STEM program, NCUK Algeria. [slides]

• 2017  "Introduction to Spark ML", Master Class University of Perugia Italy.[slides]

• 2016  "Defining curriculum for data science," CGW 2016, Krakow, Poland. [slides]

• 2016  "Training Data Scientists for Industry," Enterprise Cloud Computing and DevOps Conference  2016, Amsterdam, the Netherlands. [slides]

• 2013  "WS-VLAM Workflow Management System and its Applications", Netherlands eScience Center, Amsterdam. [slides]

• 2012  "Introduction to scientific workflow / workflow management system", AGH University of Science and Technology, Krakow PL.[slides]

• 2012 “Scientific workflow management to enable e-science on both Grids/Clouds, SHIWA summer school MTA STAKI, Budapest HU. [slides]

• 2012 “WS-VLAM workflow management System”, EGI Technical Forum, Prague [slides]

• 2012 “Why a curriculum in eScience”, Surf Research day, Utrecht, The Netherlands. [slides]

• 2011 “an Approach to virtual –Laboratory for e-Science”, Europe Globus workshop at EGI technical forum, Lyon France [slides].

• 2011 “an Approach to virtual –Laboratory for e-Science”, 4th ACC Cyfronet AGH User’s conference, Zakopane Poland [slides].

• 2010  “a VL-e eScience Framework: from design to sharing", Netherlands BioInformactics Center (nbic). [slides]

• 2009 "Service Oriented Architecture & Web service, Master Class, University Mentouri, Constantine. [slides]

• 2007 "Grid computing, Nikhef topical lectures, National Institute for Nuclear Physics, and High Energy Physics, the Netherlands. [slides]

• 2007 "Dynamic workflow", ICTDelta - the ICT-Knowledge congress. [slides]

• 2003 "VLAM-G: A Grid-based system (Project Outcome)", The Netherlands ICT Kenniscongres, The Hague, the Netherlands. [slides]

• 2002 "Applying Grid Technology for Experimental Science, IGrid2002 International Conference, Amsterdam, The Netherlands. [slides]

• 2001 "Introduction to Virtual Laboratory Concepts, 1st Global Grid Forum, Amsterdam, The Netherlands, [slides]

• 1997 "Web caching", 6th Graduate Network of Applied Research in Parallel systems and the Advanced School for Computing and Imaging, The Netherlands,[slides]

​

co-organized Workshops:

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•     eScience2019 (Program Chair) HPCS15 (Program Chair) (Amsterdam, NL), MDGS11 (Bordeau, FR), PC3 challenge 2009 (Amsterdam, NL), SWES09 (Shanghai, CH), WACS08 (Krakow, PL), SWES08 (Lyon, FR), SWBES07 (Bangalore, IN), SWES07 (Beijing, CN), SWBES06 (Amsterdam, NL), SWES06 (Reading, UK)
   

​Special issue Workflow Management Systems:

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•    Future Generation Computer Systems (Volume 25, Issue 5, Pages 489-598, May 2009)

•    Journal of Scientific Programming (Volume 14, Numbers 3-4, 2006)