Snapquery EKAW 2024 paper

Key Points

1. Query rot versus link rot
2. Transparency vs. complexity of SPARQL queries
3. Use cases for named queries
4. Ambiguity of names
5. Persistent identifiers
6. Query hashes and short_urls
7. How to deal with aspects that do not (usually) influence the execution of a SPARQL query, like whitespace, comments, capitalization and variable names?
8. Parameterized queries
9. technical debt and accidential complexity
10. Wikidata example queries
11. Scholia and Wikidata graph split
12. Other knowledge graphs, e.g., DBLP, OpenStreetMap
13. Perhaps also some NFDI examples or some custom knowledge graphs like FAIRJupyter
14. An Ngo Lam's ESWC 2023 paper as a pointer to the style of comparison
15. Quality criteria https://github.com/WolfgangFahl/snapquery/issues/26
16. List of standard refactoring activities and the support by this approach
17. SPARQL standard changes
18. Getting your own copy of Wikidata; the infrastructure effort needs to be mentioned
19. W3C test set - why did we not use that as an example
20. Useability evaluation https://www.nngroup.com/articles/why-you-only-need-to-test-with-5-users/
21. https://github.com/ad-freiburg/qlever/wiki/QLever-performance-evaluation-and-comparison-to-other-SPARQL-engines
22. Automatic syntax repairs - automatic conversion of SQL input, SPARQL output.
23. A closed issue should have at least one example that runs
24. Hypothesis by Stefan Decker: Query rot is more prominent in KG environments than with relational databases.
25. https://stackoverflow.com/questions/tagged/sparql
26. https://web.archive.org/web/20150512231123/http://answers.semanticweb.com:80/questions/12147/whats-the-best-way-to-parameterize-sparql-queries
27. https://jena.apache.org/documentation/query/parameterized-sparql-strings.html
28. https://www.semantic-web-journal.net/system/files/swj3076.pdf
29. https://arxiv.org/pdf/cs/0605124
30. https://arxiv.org/pdf/1402.0576 optimizing queries
31. https://www.w3.org/TR/REC-rdf-syntax/
32. https://biblio.ugent.be/publication/8632551/file/8653456 Towards supporting multiple semantics of named graphs using N3 rules
33. Wikidata Graph Pattern Benchmark (WGPB) for RDF/SPARQL by Aidan Hogan et al., 2020 (DOI: 10.5281/zenodo.4035223)
34. ESWC 2019 proceedings (978-3-030-21348-0.pdf)
35. Linked Data Fragments https://linkeddatafragments.org/ e.g. https://ldfclient.wmflabs.org/ 404 error