Katja Hose
@katjahose.bsky.social
Professor at TU Wien (Austria); research on #dataManagement and #queryOptimization with a focus on #graphs and #knowledgeGraphs
https://www.dbai.tuwien.ac.at/staff/khose
https://www.dbai.tuwien.ac.at/staff/khose
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
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
University Assistant Prae-Doc (all genders)
jobs.tuwien.ac.at
October 29, 2025 at 4:55 PM
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
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
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
University Assistant Prae-Doc (all genders)
jobs.tuwien.ac.at
October 22, 2025 at 6:43 AM
🎓 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
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
Reposted by Katja Hose
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
Authors: Milos Jovanovik, Marija Vecovska, Maxime Jakubowski, Katja Hose
github: github.com/etnc/RDFGrap...
@mjovanovik.com
@maximejakubowski.bsky.social
@katjahose.bsky.social
October 16, 2025 at 8:57 AM
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
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!
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!
October 15, 2025 at 4:31 PM
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!
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!
Reposted by Katja Hose
🕵️♂️ 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
#SemanticWeb #RDF #DataQuality #KnowledgeGraphs
September 5, 2025 at 9:29 PM
🕵️♂️ 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
#SemanticWeb #RDF #DataQuality #KnowledgeGraphs
Reposted by Katja Hose
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/...
Authors: M. Jakubowski, D. Tomaszuk, K. Hose
Paper: ebooks.iospress.nl/doi/10.3233/...
September 8, 2025 at 7:20 AM
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/...
Authors: M. Jakubowski, D. Tomaszuk, K. Hose
Paper: ebooks.iospress.nl/doi/10.3233/...
Reposted by Katja Hose
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
👥 Authors: Abiram Mohanaraj, Matteo Lissandrini, Katja Hose
📄 PDF: https://www.vldb.org/pvldb/vol18/p5295-mohanaraj.pdf
September 4, 2025 at 12:00 AM
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
👥 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
It was a pleasure to contribute to the review process, and I'm truly grateful for the recognition.
Congratulations to all awardees!
#VLDB2025
September 2, 2025 at 1:58 PM
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
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!
It was a pleasure serving on the committee with his supervisor Ralf Schenkel. We even made it onto the Doktorhut!
August 28, 2025 at 8:49 AM
🎓 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!
It was a pleasure serving on the committee with his supervisor Ralf Schenkel. We even made it onto the Doktorhut!
Reposted by Katja Hose
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
👥 Authors: Theis Jendal, Matteo Lissandrini, Peter Dolog, Katja Hose
📄 PDF: https://www.vldb.org/pvldb/vol18/p2496-jendal.pdf
August 1, 2025 at 4:00 PM
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
👥 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...
#knowledgeGraphs #RDF #SHACL #SPARQL #LLM
www.bilateral-ai.net/doctoral-sch...
July 8, 2025 at 4:16 PM
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...
#knowledgeGraphs #RDF #SHACL #SPARQL #LLM
www.bilateral-ai.net/doctoral-sch...
Reposted by Katja Hose
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
👥 Authors: Abiram Mohanaraj, Matteo Lissandrini, Katja Hose
📄 PDF: https://www.vldb.org/pvldb/vol18/p1621-mohanaraj.pdf
June 30, 2025 at 6:00 PM
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
👥 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
📍 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
June 23, 2025 at 1:08 AM
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
📍 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
🌍 Funded by #MSCA #ARMADA_DN
📅 Apply by June 30, 2025
🔗 lnkd.in/dX2ZWtj8
#LLM #KnowledgeGraphs #Factuality #DataAnalytics
June 15, 2025 at 8:34 AM
📢 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
🌍 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/...
www.vldb.org/pvldb/vol16/...
June 7, 2025 at 11:53 AM
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/...
www.vldb.org/pvldb/vol16/...
Reposted by Katja Hose
📣 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...
🧪
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...
🧪
May 22, 2025 at 7:57 PM
📣 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...
🧪
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...
???
Sometimes I really wonder how my contact details could possibly have ended up in such mailing lists...
May 11, 2025 at 10:24 AM
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...
???
Sometimes I really wonder how my contact details could possibly have ended up in such mailing lists...
Reposted by Katja Hose
⚠️ ⚠️ ⚠️ ⚠️ ⚠️ 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.
April 19, 2025 at 1:06 PM
⚠️ ⚠️ ⚠️ ⚠️ ⚠️ 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.
Reposted by Katja Hose
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
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
April 7, 2025 at 7:27 AM
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
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
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
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
March 26, 2025 at 3:06 PM
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
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...
authors: Martin Pekar Christensen, Aristotelis Leventidis, @kuzeko.bsky.social, Laura Di Rocco, Renée J. Miller, Katja Hose
openproceedings.org/2025/conf/ed...
March 26, 2025 at 10:38 AM
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...
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
Looking forward to enjoying the program during the next couple of days.
@edbticdt.bsky.social
March 26, 2025 at 8:34 AM
#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
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
Application deadline:
April 3, 2025
More details:
jobs.tuwien.ac.at/Job/244015
#hiring #PhDposition #knowledgegraphs #graphData
University Assistant (Prae-Doc)
jobs.tuwien.ac.at
March 21, 2025 at 5:48 AM
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
Application deadline:
April 3, 2025
More details:
jobs.tuwien.ac.at/Job/244015
#hiring #PhDposition #knowledgegraphs #graphData