Empirical Study on the Usage of Graph Query Languages in Open Source Java Projects
summary
Study scans Java repos and finds SPARQL and Cypher are the most used graph query languages but remain an order of magnitude below SQL (MySQL connector); the code-search pipeline returns about 10,000 Cypher-related projects and a smaller but growing SPARQL set. Activity is measured by commits that change Java methods containing queries or dedicated files using a query-header heuristic; dedicated query files rare. Manual labeling of top projects yields 12 concrete SPARQL applications, 21 meta uses and 42 irrelevant entries.
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chapters (9)
- 0:00Introduction
- 4:00LanguagePopularity
- 5:59GitHub
- 8:12Stars
- 10:33Activity Comparison
- 13:07Sparkle Usage
- 14:47Top 50 Projects
- 16:48Ontologies
- 18:18Conclusion
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