SPARQL-QBE / Query By Example

Select and load one of the dataset in order to use the SPARQL-QBE tool.

You can find more about the SPARQL-QBE tool here and watch a introductory tutorial video here.

Created by Akritas Akritidis (FORTH-ICS and Computer Science Department, University of Crete) and Yannis Tzitzikas (FORTH-ICS and Computer Science Department, University of Crete).

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SPARQL-QBE / Query By Example

SPARQL-QBE is an interactive example based method for formulating queries that utilises a feedback loop.

The user provides two or more entities that may have been discovered while browsing or by keyword search. We then compute one query whose result contains the provided plus other entities that have commonalities with the entities provided by the user. Then the user can refine the formulated answer (and query) by providing interactively positive/negative feedback, by selecting/rejecting constraints that are given to the user, as well as positive/negative examples.

An introductory tutorial video can be found here.

You can find more information in the following:
- Akritas Akritidis, Yannis Tzitzikas, Demonstrating Interactive SPARQL Formulation through Positive and Negative Examples and Feedback (Demo Paper), EDBT/ICDT 2023 Joint Conference (EDBT 2023).
- Akritas Akritidis, Yannis Tzitzikas, Querying Knowledge Graphs through Positive and Negative Examples and Feedback Journal of Intelligent Information Systems (JIIS), 2024 (accepted for publication).

Created by:
- Akritas Akritidis (FORTH-ICS and Computer Science Department, University of Crete)
- Yannis Tzitzikas (FORTH-ICS and Computer Science Department, University of Crete)

Current version 3.0 (2023w06)

Terms of Use - Privacy Policy - © 2020 FOUNDATION FOR RESEARCH & TECHNOLOGY - HELLAS, All rights reserved.