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

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/...

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!

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...

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

📢 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/...

📣 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.

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.

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!

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...

#EDBT2025 has just officially started with the opening ceremony and a warm welcome by the general chairs, Oscar Romero and Anna Queralt, and the program chairs, Bettina Kemme and Alkis Simitsis. Looking forward to enjoying the program during the next couple of days. @edbticdt.bsky.social

I am looking for a PhD student in graph data management and analysis. Application deadline: April 3, 2025 More details: jobs.tuwien.ac.at/Job/244015 #hiring #PhDposition #knowledgegraphs #graphData

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...

Ernests Lavrinovics, Russa Biswas, Johannes Bjerva, Katja Hose Knowledge Graphs, Large Language Models, and Hallucinations: An NLP Perspective https://arxiv.org/abs/2411.14258

Scoop: The databases powering DOGE.gov are insecure, and people outside the government have already pushed their own updates to the site to prove it: www.404media.co/anyone-can-p...

A petition in Denmark has already garnered over 200,000 signatures seeking the "Denmarkification" of California by purchasing it from the United States in response to President Trump's push to buy Greenland.

Thank you Milos, Maxime, and Dominik for joining and making this is a nice group excursion. @mjovanovik.com @maximejakubowski.bsky.social

The first plenary meeting of the #GOBLINcost action in Prague is coming to an end. Thanks a lot for a wonderful 2 days & giving me the opportunity to give a keynote on "Introduction to Knowledge Graphs". I'm looking foward to our upcoming work together. #KnowledgeGraphs #RDF #LLMs #AI

Katja Hose from TU Wien with her “Introduction to Knowledge Graphs” presentation at the GOBLIN COST action plenary meeting in Prague. /cc @katjahose.bsky.social #KnowledgeGraphs #RDF #GOBLINcost #TUWien

My poster for tomorrow’s GOBLIN COST Action meeting in Prague. I’ll have a chance to share our progress on developing our Synthetic EHR Knowledge Graphs generator, which outputs Turtle + FHIR entities in a size of your choice. #GOBLINcost #KnowledgeGraphs #RDF #FHIR #EHR #SyntheticData

Thank you all for a great week in #Dagstuhl, here's the traditional photo 😉 www.dagstuhl.de/25051

On the way to #dagstuhl. Looking forward to a great week discussing "Trust and Accountability in Knowledge Graph-Based AI for Self Determination". Thank you, John Domingue, Luis-Daniel Ibáñez, Sabrina Kirrane, Maria-Esther Vidal for organizing the seminar!

We are still interested in your thoughts on #RDF validation technologies! Please share your experiences in our survey: forms.gle/LdXsG644obcg... If you are working with shape languages like #SHACL or #ShEx, your insights will help us advance the future of validation technologies.

We are conducting a #survey to better understand the challenges, experiences, and practical applications of validating #RDF data using #SHACL and #ShEx. Please help us get a better overview by sharing your insights: forms.gle/LdXsG644obcg... It only takes around 8 minutes.

EDBT/ICDT now also has a BlueSky account: @edbticdt.bsky.social Preparations are well underway for the 2026 edition is Tampere, Finland 🇫🇮

We now extended the deadline of the ML4Sys/Sys4ML@BTW workshop to Dec 15 luthramanisha.github.io/ML4Sys-and-S...

We are growing the team building the SAP Knowledge Graph and are #hiring AI & Data Scientists, Data Engineers, Knowledge Engineers and Applied Research Scientists in Germany (Berlin, Walldorf) and India (Bangalore): jobs.sap.com/search/?crea... Let's take GenAI to the next level with #KG!

I am looking for a PhD student in graph data management and analysis. Application deadline: December 19, 2024. More details: jobs.tuwien.ac.at/Job/243871 #hiring #PhDposition #knowledgegraphs #graphData

ICDE 2025 welcomes PhD Symposium Submissions! 🙂 👇 ⏰ Deadline: February 8, 2025 AoE ieee-icde.org/2025/call-fo...

We're excited to announce that the VLDB Summer School will take place from Monday, 28th of July, to Thursday, 31st of July, 2025 at the University of Wroclaw, in Poland! 🇵🇱 More details to follow soon ☀️ www.linkedin.com/company/vldb...

There are less than two weeks until the deadline of our ML4Sys & Sys4ML workshop @ BTW2025 in Bamberg. luthramanisha.github.io/ML4Sys-and-S...

Dear data management community, SIGMOD/PODS 2025 is now also on BlueSky. And we kick-off with the 📯📯📯announcement📯📯📯 that registration is now open! 2025.sigmod.org/registration... Early registration until May 17th. If you have any questions contact the registration chair Ruben Meyer.