Publications

Book

Data Exploration using Example-based Methods
, Davide Mottin, Themis Palpanas, Yannis Velegrakis
Synthesis Lectures on Data Management - Morgan & Claypool Publishers (online)

Journal

The ESW of Wikidata: Exploratory search workflows on Knowledge Graphs (PDF)
, Gianmarco Prando and Gianmaria Silvello
Journal of Web Semantics (JoWS), Volume 85, May 2025, 100860, (2025).
Transforming RDF Graphs to Property Graphs using Standardized Schemas (PDF)
Kashif Rabbani, , Katja Hose
Companion of the 2025 International Conference on Management of Data, SIGMOD/PODS 2025
How Does Knowledge Evolve in Open Knowledge Graphs? (PDF)
Axel Polleres, Romana Pernisch, Angela Bonifati, Daniele Dell'Aglio, Daniil Dobriy, Stefania Dumbrava, Lorena Etcheverry, Nicolas Ferranti, Katja Hose, Ernesto Jiménez-Ruiz, , Ansgar Scherp, Riccardo Tommasini, Johannes Wachs
Transactions on Graph Data and Knowledge (TGDK), 1 (1)
Knowledge Graph Embeddings: Open Challenges and Opportunities (PDF)
Russa Biswas, Lucie-Aimée Kaffee, Michael Cochez, Stefania Dumbrava, Theis E. Jendal, , Vanessa Lopez, Eneldo Loza Mencía, Heiko Paulheim, Harald Sack, Edlira Kalemi Vakaj, Gerard de Melo
Transactions on Graph Data and Knowledge (TGDK), 1 (1)
Large Language Models and Knowledge Graphs: Opportunities and Challenge (PDF)
Jeff Z. Pan, Simon Razniewski, Jan-Christoph Kalo, Sneha Singhania, Jiaoyan Chen, Stefan Dietze, Hajira Jabeen, Janna Omeliyanenko, Wen Zhang, , Russa Biswas, Gerard de Melo, Angela Bonifati, Edlira Vakaj, Mauro Dragoni, Damien Graux
Transactions on Graph Data and Knowledge (TGDK), 1 (1)
Extraction of Validating Shapes from very large Knowledge Graphs (PDF)
Kashif Rabbani, , Katja Hose
Proceedings of the Conference on Very Large Databases (PVLDB), 2023
A core ontology for modeling life cycle sustainability assessment on the Semantic Web (PDF)
Agneta Ghose, , Emil Riis Hansen, Bo Pedersen Weidema
Journal of Industrial Ecology (2021)
A design space for RDF data representations (PDF)
Tomer Sagi, , Torben Bach Pedersen, Katja Hose
The VLDB Journal (2022) 31.
Data Citation and the Citation Graph (PDF)
Peter Buneman, Dennis Dosso, , Gianmaria Silvello
Quantitative Science Studies (2021)
A foundation for spatio-textual-temporal cube analytics (PDF)
Mohsin Iqbal, , Torben Bach Pedersen
Information Systems (2022)
Knowledge Graph Exploration: Where Are We and Where Are We Going? (PDF)
, Torben Bach Pedersen, Katja Hose, Davide Mottin
SIGWEB Newsletter (2020)
Mining Patterns in Graphs with Multiple Weights (PDF)
Giulia Preti, , Davide Mottin, Yannis Velegrakis
Distributed and Parallel Databases (Special Issue on Extending Database Technology, invited)
Beyond Macrobenchmarks: Microbenchmark-based Graph Database Evaluation (PDF)
, Martin Brugnara, Yannis Velegrakis
Proceedings of the Conference on Very Large Databases (PVLDB), 2018
Exemplar Queries: A New Way of Searching (PDF)
Davide Mottin, , Themis Palpanas, Yannis Velegrakis
The VLDB Journal (2016) 25(6).
Unleashing the Power of Information Graphs (PDF)
, Davide Mottin, Dimitra Papadimitriou, Themis Palpanas, Yannis Velegrakis
ACM SIGMOD Record 43(4), 2014
Exemplar Queries: Give me an Example of What You Need (PDF)
Davide Mottin, , Themis Palpanas, Yannis Velegrakis
Proceedings of the Conference on Very Large Databases (PVLDB), 7(5), 2014

Conference

Fantastic Tables and Where to Find Them: Table Search in Semantic Data Lakes (PDF)
Martin Pekár Christensen, Aristotelis Leventidis, , Laura Di Rocco, Katja Hose, Renée J. Miller
Proceedings of the 28th International Conference on Extending Database Technology, EDBT 2025
Mining Validating Shape for Large Knowledge Graphs via Dynamic Reservoir Sampling (PDF)
, Kashif Rabbani, Katja Hose
Proceedings of the 32nd Symposium of Advanced Database Systems, SEBD 2024
Reproducibility and Analysis of Scientific Dataset Recommendation Methods (PDF)
Ornella Irrera, , Daniele Dell'Aglio, Gianmaria Silvello
Proceedings of the 18th ACM Conference on Recommender Systems, RecSys 2024
A Large Scale Test Corpus for Semantic Table Search (PDF)
Aristotelis Leventidis, Martin Pekár Christensen, , Laura Di Rocco, Katja Hose, Renée J. Miller
Proceedings of the 47th International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2024
Hypergraphs with Attention on Reviews for Explainable Recommendation (PDF)
Theis E. Jendal, Trung-Hoang Le, Hady W. Lauw, , Peter Dolog, Katja Hose
Proceedings of the 46th European Conference on Information Retrieval, ECIR 2024
Does the Performance of Text-to-Image Retrieval Models Generalize Beyond Captions-as-a-Query? (PDF)
Juan Manuel Rodriguez, Nima Tavassoli, Eliezer Levy, Gil Lederman, Dima Sivov, , Davide Mottin
Proceedings of the 46th European Conference on Information Retrieval, ECIR 2024
Example-Driven Exploratory Analytics over Knowledge Graphs (PDF)
, Katja Hose, Torben Bach Pedersen
Proceedings of the 26th International Conference on Extending Database Technology, EDBT 2023
Understanding RDF Data Representations in Triplestores (PDF)
, Tomer Sagi, Torben Bach Pedersen, Katja Hose
Proceedings of the 30th Italian Symposium on Advanced Database Systems, SEBD 2022
Knowledge Graph Exploration Systems: are we lost? (PDF)
, Davide Mottin, Katja Hose, Torben Bach Pedersen
Proceedings of the 12th Conference on Innovative Data Systems Research, CIDR 2022
Estimating the extent of the effects of data quality through observations (PDF)
Daniele Foroni, , Yannis Velegrakis
Proceedings of the 37th IEEE International Conference on Data Engineering, ICDE 2021
Optimizing SPARQL Queries using Shape Statistics (PDF)
Kashif Rabbani, , Katja Hose
Proceedings of the 24th International Conference on Extending Database Technology, EDBT 2021
MindReader: Recommendation over Knowledge Graph Entities with Explicit User Ratings (PDF)
Anders Brams, Anders Jakobsen, Theis Jendal, , Peter Dolog and Katja Hose
Proceedings of the Conference on Information and Knowledge Management (CIKM 2020)
Transparent Integration and Sharing of Life Cycle Sustainability Data with Provenance (PDF)
Emil Riis Hansen, , Agneta Ghose, Søren Løkke, Christian Thomsen, Katja Hose
Proceedings of the International Semantic Web Conference (ISWC 2020)
Graph-Query Suggestions for Knowledge Graph Exploration (PDF)
, Davide Mottin, Themis Palpanas, Yannis Velegrakis
Proceedings of the World Wide Web Conference (WebConf 2020)
Personalized Page Rank on Knowledge Graphs: Particle Filtering is all you need! (PDF)
Denis Gallo, , Yannis Velegrakis
Proceedings of the 23th International Conference on Extending Database Technology, EDBT 2020
Multi-Example Search in Rich Information Graphs (PDF)
, Davide Mottin, Themis Palpanas, Yannis Velegrakis
Proceedings of the 34rd IEEE International Conference on Data Engineering, ICDE 2018
Beyond Frequencies: Graph Pattern Mining in Multi-weighted Graphs (PDF)
Giulia Preti, , Davide Mottin, Yannis Velegrakis
Proceedings of the 21th International Conference on Extending Database Technology, EDBT 2018

Demonstrations & Posters

SHACTOR: Improving the Quality of Large-Scale Knowledge Graphs with Validating Shapes (PDF)
Kashif Rabbani, , and Katja Hose
Companion of the 2023 International Conference on Management of Data (SIGMOD’23)
SHACL and ShEx in the Wild: A Community Survey on Validating Shapes Generation and Adoption (PDF)
Kashif Rabbani, , Katja Hose
The Web Conference 2022
SOFOS: Demonstrating the Challenges of Materialized View Selection on Knowledge Graphs (PDF)
Georgia Troullinou, Haridimos Kondylakis, , Davide Mottin
Proceedings of the 2021 ACM SIGMOD International Conference on Management of Data
The F4U System for Understanding the Effects of Data Quality (PDF)
Daniele Foroni, , Yannis Velegrakis
Proceedings of the 37th IEEE International Conference on Data Engineering, ICDE 2021
An Open Source Dataset and Ontology for Product Footprinting (PDF)
Agneta Ghose, Katja Hose, , Bo Pedersen Weidema
Extended Semantic Web Conference, 2019. Satellite Events
X2Q: Your Personal Example-based Graph Explorer (PDF)
, Davide Mottin, Themis Palpanas, Yannis Velegrakis
Proceedings of the Conference on Very Large Databases (PVLDB), 11 (12): 2018
Searching with XQ: the eXemplar Query Search Engine (PDF)
Davide Mottin, , Themis Palpanas, Yannis Velegrakis
ACM SIG International conference on Management of Data / Principles of Database Systems (SIGMOD/PODS), Snowbird, Utah, USA, 2014

Tutorials at international conferences

Example-based Exploration: Exploring Knowledge through Examples (PDF)
, Davide Mottin, Themis Palpanas, Yannis Velegrakis
ESWC 2020
Example-based Search: a New Frontier for Exploratory Search (PDF)
, Davide Mottin, Themis Palpanas, Yannis Velegrakis
Proceedings of the ACM SIGIR Conference, 2019
Exploring the Data Wilderness through Examples (PDF)
Davide Mottin, , Themis Palpanas, Yannis Velegrakis
Proceedings of the ACM SIGMOD/PODS Conference, 2019
New Trends on Exploratory Methods for Data Analytics (PDF)
Davide Mottin, , Yannis Velegrakis, Themis Palpanas
Proceedings of the Conference on Very Large Databases (PVLDB), 10(12), 2017

Workshops at international conferences

GInRec: A Gated Architecture for Inductive Recommendation using Knowledge Graphs (PDF)
Theis Erik Jendal, , Peter Dolog, Katja Hose
Proceedings of the Fifth Knowledge-aware and Conversational Recommender Systems Workshop co-located with 17th ACM Conference on Recommender Systems (RecSys 2023)
LSQB: A Large-Scale Subgraph Query Benchmark (PDF)
Amine Mhedhbi, , Laurens Kuiper, Jack Waudby, Gabor Szarnyas
Proceedings of the 4th Joint International Workshop on Graph Data Management Experiences & Systems (GRADES) and Network Data Analytics (NDA). Co-located with SIGMOD 2021

Technical Reports and Whitepapers

An Evaluation Methodology and Experimental Comparison of Graph Databases (PDF)
, Martin Brugnara, Yannis Velegrakis
DISI Technical Reports - DISI-17-006 —

Patents

Processing a hybrid flow associated with a service class
Alkiviadis Simitsis, William Kevin Wilkinson, - Original Assignee Hewlett-Packard Development Company, L.P.
WO Application: WO2015047302A1 (Full text)

Thesis

Enabling Access to and Exploration of Information Graphs
author: , advisors: Yannis Velegrakis & Themis Palpanas,
PhD Thesis — . (PDF) -->ticle>