I had the great pleasure to give a keynote today at #EGC2026 on Reliable Knowledge in the Age of #GenerativeAI, focusing on #KnowledgeGraphs, #DataQuality, #hallucinations, and their role in #AgenticAI systems.
Thank you to Fatiha Saïs, the organizers, and the audience.
🎬 DMKI Lab Highlights 2025
A snapshot of a year of research, collaborations, and community at the DMKI Lab (Data Management & Knowledge-Driven AI) at TU Wien.
Thanks to the team, collaborators, and partners — more to come in 2026!
#DMKILab #TUWien #KnowledgeGraphs #AI
🚀 Postdoc in Data Management for AI @ TU Wien (Vienna)
Research & teaching on #dataManagement foundations for #AI and modern #AIsystems.
📅 Start: ASAP | ⏳ Deadline: Jan 8, 2026
Duration: 3 years
👉 jobs.tuwien.ac.at/Job/261722?c...
Lab: dmki-tuwien.github.io
Postdoc in Data Warehousing @TU Wien
Research on #dataWarehousing, #analytics & #databasePerformance at the intersection of data systems and AI, incl. collaboration on an LLM data warehouse interface
📅 Start: Feb 2026 | ⏳ Deadline: Jan 15, 2026
👉 jobs.tuwien.ac.at/Job/261528
Lab @dmki.bsky.social
Prof. Katja Hose gave a talk today at the AI Festival 2025 at TU Wien (@tuwien.at). She presented the ongoing research of our team in AI, Agentic AI and Knowledge Graphs.
#AI #AgenticAI #KnowledgeGraphs
/cc @katjahose.bsky.social
2 #Postdoc positions at TU Wien (Vienna, Austria)
1️⃣ Data Warehousing & System Performance
jobs.tuwien.ac.at/Job/259680
2️⃣ Natural Language Interfaces, LLMs, Exploratory Data Access
jobs.tuwien.ac.at/Job/259683
Appl. deadline: Nov 13, 2025
Details: dmki-tuwien.github.io/jobs.html
@dmki.bsky.social
🎓 PhD Position @ TU Wien (Vienna, Austria) — start Jan 2026
Join us to do research on knowledge graph embeddings.
Application deadline: November 6, 2025
🔗 Apply here: jobs.tuwien.ac.at/Job/259110
ℹ️ More details: dmki-tuwien.github.io/jobs.html
#PhD #AI #KnowledgeGraphs #MachineLearning #Vienna
Sorry, the slides are not available online.
16.10.2025 16:00 — 👍 1 🔁 0 💬 0 📌 0
Maxime Jakubowski presenting our work on "RDFGraphGen: An #RDF Graph Generator based on #SHACL Shapes" at #IJCKG25.
Authors: Milos Jovanovik, Marija Vecovska, Maxime Jakubowski, Katja Hose
github: github.com/etnc/RDFGrap...
@mjovanovik.com
@maximejakubowski.bsky.social
@katjahose.bsky.social
I gave a keynote at #IJCKG25 this morning:
Sharp Edges in a Fuzzy World — Knowledge Graphs and LLMs
How can we combine the fuzzy nature of LLMs with the structured precision of knowledge graphs to build AI that we can rely on?
Followed by a wonderful discussion - thank you to everyone who joined!
🕵️♂️ RDF detectives on the case! Maxime Jakubowski, Dominik Tomaszuk & Katja Hose are bridging the gaps in RDF validation at #SEMANTiCS2025. Don’t let data inconsistencies slip through!
#SemanticWeb #RDF #DataQuality #KnowledgeGraphs
Maxime Jakubowski presented the paper "Bridging Gaps in RDF Validation – Insights and Innovation Opportunities in RDF Validation Practices" at SEMANTiCS 2025 (@semantics-conf.bsky.social) in Vienna, Austria.
Authors: M. Jakubowski, D. Tomaszuk, K. Hose
Paper: ebooks.iospress.nl/doi/10.3233/...
Thumbnail: Smart SPARQL Advisor: Guiding Users in Query Formulation with Performance Prediction
Vol:18 No:12 → Smart SPARQL Advisor: Guiding Users in Query Formulation with Performance Prediction
👥 Authors: Abiram Mohanaraj, Matteo Lissandrini, Katja Hose
📄 PDF: https://www.vldb.org/pvldb/vol18/p5295-mohanaraj.pdf
Honored to have received a Distinguished Associate Editor Award at @vldb.bsky.social 2025!
It was a pleasure to contribute to the review process, and I'm truly grateful for the recognition.
Congratulations to all awardees!
#VLDB2025
🎓 Congrats to Tobias Zeimetz on a successful PhD defense and his work on "Hybrid and Quality Aware Federations of Linked Data Fragment Interfaces and Traditional RESTful Web APIs".
It was a pleasure serving on the committee with his supervisor Ralf Schenkel. We even made it onto the Doktorhut!
Thumbnail: The Limits of Graph Samplers for Training Inductive Recommender Systems
Vol:18 No:8 → The Limits of Graph Samplers for Training Inductive Recommender Systems
👥 Authors: Theis Jendal, Matteo Lissandrini, Peter Dolog, Katja Hose
📄 PDF: https://www.vldb.org/pvldb/vol18/p2496-jendal.pdf
Today, I had the great pleasure of giving an introductory lecture on knowledge graphs at the #BILAI Summer School 2025 in Klagenfurt. Great energy and engagement!
#knowledgeGraphs #RDF #SHACL #SPARQL #LLM
www.bilateral-ai.net/doctoral-sch...
Thumbnail: PlanRGCN: Predicting SPARQL Query Performance
Vol:18 No:6 → PlanRGCN: Predicting SPARQL Query Performance
👥 Authors: Abiram Mohanaraj, Matteo Lissandrini, Katja Hose
📄 PDF: https://www.vldb.org/pvldb/vol18/p1621-mohanaraj.pdf
Looking forward to discussing our work on graph transformation at #SIGMOD2025
📍 Poster Session 2
🗓️ Wednesday, June 25 | 16:00–17:30
Lossless Transformation of Knowledge Graphs to Property Graphs using Standardized Schemas
Kashif Rabbani, @kuzeko.bsky.social, Angela Bonifati, @katjahose.bsky.social
Is there a best poster award that this one could win?
Engage!
📢 We're hiring a #PhD student at @tuwien.at for a project on Knowledge-Graph driven Factuality and Explainability in LLMs for conversational data analytics.
🌍 Funded by #MSCA #ARMADA_DN
📅 Apply by June 30, 2025
🔗 lnkd.in/dX2ZWtj8
#LLM #KnowledgeGraphs #Factuality #DataAnalytics
Honored to receive the IFIP TC2 Manfred Paul Award (2024) with Kashif Rabbani and @kuzeko.bsky.social for our VLDB 2022 paper on generating #SHACL shapes from large knowledge graphs. Scales to billions of triples, mining meaningful patterns using support and confidence.
www.vldb.org/pvldb/vol16/...
Banner of the ARMADA website: "ARMADA Reliable Conversational Domain-specific Data Exploration and Analysis"
📣 Join us at IBM Research for a PhD position on Reliable Multimodal LLMs, combining language, vision & advanced reasoning!
Located in Zurich🇨🇭 & co-supervised by @katjahose.bsky.social at TU Vienna🇦🇹 as part of the cool new MSCA ARMADA Doctoral Network
Apply at www.zurich.ibm.com/careers/2025...
🧪
Sure, I'm happy to prepare a submission for the journal "Orthopedics and Tissue Engineering".
???
Sometimes I really wonder how my contact details could possibly have ended up in such mailing lists...
⚠️ ⚠️ ⚠️ ⚠️ ⚠️ Dear SIGMOD community and attendees please be aware that there are an increasing number of scam and phishing emails that pretend to contact you on behalf of the SIGMOD organization. Companies, such as Global Travel Experts or Travel Housing are not affiliated with SIGMOD.
19.04.2025 13:06 — 👍 3 🔁 1 💬 0 📌 0
Status update on the TARGET Data Platform, developed by our team at TU Wien (@tuwien.at).
Prof. Katja Hose (@katjahose.bsky.social) presenting the details and numbers we have so far, as part of the TARGET project (@target-horizoneu.bsky.social).
#TARGETProject #HealthTech #DigitalHealth
Feeling honored to have received an #EDBT2025 distinguished meta-reviewer award.
28.03.2025 13:18 — 👍 10 🔁 0 💬 0 📌 0
Happy to share that my colleague Camillo Merkel, together with Kyle Deeds, has just received the #ICDT25 Best Paper Award as well as the #ICDT25 Best Student Paper Award, for their paper "Worst-Case Optimal Joins Meet Partition Constraints". Congratulations!
27.03.2025 14:30 — 👍 5 🔁 0 💬 0 📌 0
D. Mottin & M. Lissandrini presenting "Towards Reliable Conversational Data Analytics"at #EDBT2025
Authors: S. Amer-Yahia, J. Bogojeska, R. Facchinetti, V. Franceschi, A. Gionis, K. Hose, G. Koutrika, R. Kouyos, M.Lissandrini, S. Maniu, K. Mirylenka, D. Mottin, T. Palpanas, M. Rigotti, Y. Velegrakis
Proudly watching Martin Pekar presenting "Fantastic Tables and Where to Find Them: Table Search in Semantic Data Lakes" at #EDBT2025,
authors: Martin Pekar Christensen, Aristotelis Leventidis, @kuzeko.bsky.social, Laura Di Rocco, Renée J. Miller, Katja Hose
openproceedings.org/2025/conf/ed...
