Sapphire: Querying RDF Data Made Simple
Summary: Sapphire bridges keyword search and SPARQL for RDF/LOD data. It interactively helps users construct expressive queries via data-driven term suggestions and predictive recommendations, then executes them over public SPARQL endpoints. (summarized by gpt-5.6-luna on Jul 24 2026)
Incoming Non-self Citations Over Time
Authors
- 1. Ahmed El-Roby (University of Waterloo)
- 2. Khaled Ammar (University of Waterloo)
- 3. Ashraf Aboulnaga (Hamad Bin Khalifa University; Qatar Computing Research Institute)
- 4. Jimmy Lin (University of Waterloo)
BibTeX Citation
@article{elroby_vldb16,
title = {{Sapphire: Querying RDF Data Made Simple}},
author = {El-Roby, Ahmed and Ammar, Khaled and Aboulnaga, Ashraf and Lin, Jimmy},
journal = {PVLDB},
series = {{VLDB} '16},
volume = {9},
number = {13},
pages = {1481--1492},
doi = {10.14778/3007263.3007289},
url = {https://doi.org/10.14778/3007263.3007289},
year = {2016}
}Incoming Citations (Sorted by Pagerank)
Showing 2 of 2 citing papers.
| Rank | Citing Paper | Year | Venue | Pagerank |
|---|---|---|---|---|
| 6,303 | X2Q: Your Personal Example-based Graph Explorer | 2018 | VLDB | 5.9213518e-05 |
| 8,520 | Knowledge Graph Exploration Systems: are we lost? | 2022 | CIDR | 5.4119882e-05 |
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Outgoing Citations (Sorted by Pagerank)
Showing 2 of 2 cited papers.
Citations counted here include only citations to other VLDB/SIGMOD/CIDR/PODS papers in this database.
| Rank | Cited Paper | Year | Venue | Pagerank |
|---|---|---|---|---|
| 37 | DISCOVER: Keyword Search in Relational Databases | 2002 | VLDB | 0.00048017193 |
| 1,898 | DBXplorer: Enabling Keyword Search over Relational Databases | 2002 | SIGMOD | 9.5240947e-05 |
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