Olaf Hartig
Senior Associate Professor in Computer Science at Linköping University • Amazon Scholar • research on data management topics related to graph data and data on the Web
https://olafhartig.de
- 📣 Postdoc position on Virtual Knowledge Graph Integration at Linköping University I'm looking for a postdoc to actively lead research in two complementary projects on foundations & techniques for querying federations of KG views of heterogeneous data sources. 👉 Further info: liu.se/en/work-at-l...
- Finally, our VLDB paper is out: "Exploring Exploratory Querying." — A research vision related to a new way of querying, including new types of users. vldb.org/pvldb/volume... This paper is the result of discussions we had during a Shonan meeting late last year.
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- Reposted by Olaf Hartig@olafhartig.bsky.social and his #research team have a vision that we should be able to bring together information that is currently scattered across the Web by integrating the info virtually so that each player retains control over their own information #science @liu.se tinyurl.com/yssef6u3
- Super glad to receive the Best Research Paper Award at #ESWC2025 together with Sitt Min Oo for our work on providing a formal foundation for mapping languages for Knowledge Graph construction.
- Related to our approach to represent and to query lists as composite values in RDF-based Knowledge Graphs, I developed a tool to convert RDF files in which lists are represented as RDF collections (rdf:List) into files that use our cdt:List approach. Repo and download: github.com/hartig/SPARQ...
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- So far, declarative mapping languages for knowledge graph construction (RML and the likes) have lacked a solid formal foundation 😶🌫️ ⚡ Our latest work, accepted for #ESWC2025, changes that: We introduce an algebra for mappings, provide a formal semantics for RML, and more. 🔎 arxiv.org/abs/2503.10385
- 📣 We are looking to expand the Program Committee for this year's CoopIS conference and are calling for self- nominations. If interested, please nominate yourself: forms.gle/CYGYkeqVDBLR... ✍️ ℹ️ More info about CoopIS'25, the 31st Int. Conf. on Cooperative Information Systems: coopis.scitevents.org
- In a recent #Dagstuhl seminar we developed a research roadmap towards Computer-Using Personal Agents (CUPAs), automating complex tasks like today's Computer-Using Agents, but including context via controlled access to personal knowledge graphs. Our vision paper: openaccess.city.ac.uk/id/eprint/34...
- I just saw that DBLP (@dblp.org) has recently started to provide a public query service for everyone to run SPARQL queries over their database with information about computer science publications. Each author page includes links to relevant example queries. Very nice! blog.dblp.org/2024/09/09/i...
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