DKG Talks

In collaboration with SWSA, the Action organises a talk series on Distributed Knowledge Graphs and related aspects of Semantic Web research.

  • Olaf Hartig: "Reflections on Linked Data Querying and Other Related Topics" (SWSA Distinguished Dissertation Award 2015 and SWSA Ten-Year award 2019)

    • When: Mon Mar 7th 2022 at 18:00 (CET) / Mon Mar 7th 2022 at 12:00 (EST) / Tue Mar 8th 2022 at 1:00 (CST)
    • Where: YouTube
    • About the speaker: Olaf Hartig is an Associate Professor at the Department of Computer and Information Science of Linköping University. Additionally, he is an Amazon Scholar working with the Neptune graph database team at Amazon Web Services. Olaf is interested in problems related to the management of databases and knowledge, with a focus on graph data and data that is distributed over multiple, autonomous and/or heterogeneous sources. He received the 2019 SWSA Ten-Year Award for a paper which pioneered the idea of traversal-based query execution as well as querying Linked Data on the Web in general, and for his PhD thesis on the foundations of Linked Data queries, he was honored with the SWSA Distinguished Dissertation Award in 2015.
    • About the talk: When aiming to evolve the World Wide Web into a Web of interlinked data ready for software agents and applications to consume and act upon, Semantic Web researchers have advanced the state of the art of federated data management, with novel ideas that focus on discoverability, interoperability, and automation. While the adoption and the practicality of these ideas did, generally, not pan out as expected or hoped for, core aspects of the ideas have the potential to be carried over as key ingredients of new approaches to interact with decentralized knowledge graphs and to build decentralized data architectures. In this talk I will reflect on these earlier ideas and describe research problems that need to be addressed in order to carry these ideas forward.
  • Ora Lassila: "On the broad applicability of Semantic Web technologies" (SWSA Ten-Year award 2011)

    • When: Tue Dec 7th 2021 at 18:00 (CET) / Tue Dec 7th 2021 at 12:00 (EST) / Wed Dec 8th 2021 at 1:00 (CST)
    • Where: YouTube
    • About the speaker: Ora Lassila is a Principal Technologist at Amazon Web Services, working in the Neptune graph database team. Earlier, he has held research and product development positions in many organizations interested in complex data problems, ontologies, and AI. Together with his co-authors he was the recipient of the first SWSA “10-year award”. He was also a co-author of the original RDF specification as well as a co-author of the seminal article on the Semantic Web. Dr. Lassila is a graduate of the Helsinki University of Technology.
    • About the talk: The Semantic Web, despite how it was originally advertised, was not a replacement for the World Wide Web, nor was it really knowledge representation (KR) solely for the Web. Rather, the Semantic Web is KR using Web technologies. The different technologies and standards of the Semantic Web have broad applicability in many areas distinctly outside of what we consider to be the “Web”. The DAML-S (later OWL-S) effort was one such example: apply ontologies to the problem of describing the semantics of functionality and services (in this case Web services, but the concept was more general). While the effort may not have been successful in the long term, it was an early example of the application of Semantic Web technologies and approaches to a wide variety of use cases and domains. These include agent-based computing, ubiquitous computing, context-awareness, policies, privacy, enterprise knowledge graphs, and many others. But there is still an even bigger role for Semantic Web technologies: Modern enterprise data practice is messy, with daunting problems such as data integration, elimination of “data silos”, and alignment of semantics. This “messiness” will be perpetuated until we have a practical unifying logical representation for data and semantics, and the promise of Semantic Web is that it could be this representation.
  • SWSA Panel "20 years into ISWC: What's next beyond Knowledge Graphs?"

    • Recording: YouTube
    • When: Thu Oct 7th 2021 at 18:00 (CEST) / Thu Oct 7th 2021 at 12:00 (EDT) / Fri Oct 8th 2021 at 0:00 (CST)
    • Moderator: Catia Pesquita
    • Panelist: Jim Hendler, Natasha Noy, Rudi Studer
    • Learn more