24.How many truths can you handle? Strategies and techniques for handling vagueness in data modeling, Data Modeling Zone 2019, Stuttgart, Germany, November 8th, 2019. [Slides]
23. From Semantics and SEO to Knowledge Graphs, and Back Again, Panel at Connected Data London 2019, London, UK, October 4th, 2019. [Video]
22. From Taxonomies and Schemas to Knowledge Graphs – Recognizing and tackling the pitfalls of large-scale semantic modeling, Tutorial at Connected Data London 2019, London, UK, October 3rd, 2019. [Slides for parts 1 and 2] [Slides for part 3]
21.Mind the Semantic Gap: How “talking semantics” can help you perform better data science, Strata Data Conference New York 2019, New York, USA, September 25th, 2019. [Slides]
20. Building Knowledge Graphs in the Real World, Panel at Connected Data London 2018, London, UK, November 7th, 2018 [Video]
18. Why I don’t care for your F1 score – Evaluating Knowledge Extraction Tools for Industry Use, Industry Talk at the 15th European Semantic Web Conference, Heraklion, Greece, June 7th, 2018
17. Executing Knowledge Graph Initiatives in Organizations – A Field Guide, Tutorial at the 15th European Semantic Web Conference, Heraklion, Greece, June 3rd, 2018
16. Ontology modeling in practice – Common pitfalls and how to avoid them, Open Lecture at Ionian University, Department of Informatics, Corfu, Greece, April 18th, 2018
15. Building, Applying and Evolving Knowledge Graphs in Organizations – Dimensions, Methods and Challenges, Talk at Data Innovation Summit 2018, March 22, Stockholm, Sweden.
14. Search Engines and Knowledge Graphs: It’s Complicated!, Talk at Search Engines Amsterdam Meetup, February 23, 2018, Amsterdam, The Netherlands..
13. Building, Deploying and Evolving a Large Knowledge Graph for the Recruitment Domain – Best Practices and Lessons Learned, Industry Talk at SEMANTiCS 2017, Amsterdam, The Netherlands, September 11-14, 2017.
11. Performing Named Entity Resolution in the Industry Lessons Learned and a Diagnostics Framework, Departmental Seminar, University of Aberdeen, Department of Computing, December 3rd 2014, Aberdeen, UK.
10. Developing Ontologies in the Industry – Experiences and Lessons Learned, Invited Student Lecture, University of Aberdeen, Department of Computing, November 25th 2014, Aberdeen, UK.
9. Performing Named Entity Resolution in Industrial Application Scenarios – Experiences and Lessons Learned, 10th International Conference on Semantic Systems, Leipzig, Germany, September 4th 2014.
8. Reusing Public Semantic Data: The Problem of Vagueness, Athens University of Economics & Business, Department of Informatics, May 7th, 2014.
7. Detecting, Analyzing and Representing Vagueness in Ontologies for Facilitating Reuse, University of Aberdeen, Department of Computing, April 1st, 2014. [Slides]
6. Goal-Driven Summarization of Semantic Datasets, Scottish Linked Data Workshop, March 25th 2014 , Aberdeen, UK.
5. Purposeful Reuse of Semantic Datasets via Goal-Driven Data Summarization, Scottish Linked Data Interest Group Workshop 2013, December 2nd 2013, Aberdeen, UK.
4. Towards Vagueness-Aware Semantic Data, Scottish Linked Data Workshop 2013, December 2nd 2013, Aberdeen, UK.
3. Scenario-Driven Semantic Entity Resolution Using Ontological Evidence, 2nd UK Ontology Network Workshop, April 11th 2013, Edinburgh, Scotland
2. Vagueness in Semantic Information Management – A Methodological Perspective, Seminar at University of Aberdeen, Department of Computing, April 9th, 2013. [Slides]
1. Enterprise Knowledge Management – The concept, the need and the practice, Seminar at Mediterranean College Athens, November 24th, 2010.