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Blazegraph

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Blazegraph
Developer(s) Systap
Stable release
2.1.5 / 19 March 2019  ( 2019-03-19 ) [1]
Preview release
2.1.6rc / 3 February 2020  ( 2020-02-03 ) [1]
Repository
Written in Java
Type Graph database
License GNU GPL (version 2) [2]
Website blazegraph .com Edit this at Wikidata

Blazegraph is an open source triplestore and graph database , [3] [4] [5] [6] developed by Systap , which is used in the Wikidata SPARQL endpoint and by other large customers. It is licensed under the GNU GPL (version 2) .

Amazon acquired the Blazegraph developers and the Blazegraph open source development was essentially stopped in April 2018. [7]

Early history [ edit ]

The system was first known as Bigdata. Since release of version 1.5 (12 February 2015), it is named Blazegraph . [8] [9]

Prominent users [ edit ]

Notable features [ edit ]

  • RDF* ? an alternative approach to RDF reification, [12] which gives RDF graphs capabilities of LPG graphs; [13]
  • as the consequence of the previous, ability of querying graphs both in SPARQL and Gremlin ; [14] [15]
  • as an alternative to Gremlin querying, GAS abstraction over RDF graphs support in SPARQL ; [16]
  • The SERVICE syntax of federated queries for functionality extending; [17]
  • Managed behavior of the query plan generator; [18]
  • Reusable named subqueries. [19]

Acqui-hiring by Amazon Web Service (AWS) [ edit ]

It was alleged [20] that Amazon Neptune is based on Blazegraph, as evidenced by:

References [ edit ]

  1. ^ a b "Releases - blazegraph/database" . Retrieved 8 March 2020 – via GitHub .
  2. ^ "LICENSE.txt file" . Retrieved 8 March 2020 – via GitHub .
  3. ^ Kiryakov, Atanas; Mariana, Damova (2011). "Chapter 7: Storing the Semantic Web: Repositories". In Domingue, John; Fensel, Dieter; Hendler, James A. (eds.). Handbook of Semantic Web Technologies . Springer-Verlag Berlin Heidelberg. pp.  271 ?272. ISBN   978-3-540-92912-3 .
  4. ^ Thompson, Bryan; Personick, Mike; Cutcher, Martin (2014). "Chapter 8: The bigdata RDF Graph Database". In Harth, Andreas; Hose, Katja ; Schenkel, Ralf (eds.). Linked data management . CRC Press. pp. 193?237. ISBN   978-1-466-58240-8 .
  5. ^ Sikos, Leslie (2015). Mastering structured data on the Semantic Web . APress. p. 171. ISBN   978-1-4842-1049-9 .
  6. ^ Sakr, Sh.; Wylot, M.; Mutharaju, R.; Le Phuoc, D.; Fundulaki, I. (2018). Linked Data: Storing, Querying, and Reasoning . Springer International Publishing Imprint Springer. pp. 70?71. ISBN   978-3-319-73515-3 .
  7. ^ "Blazegraph fork?" . GitHub. 12 April 2018.
  8. ^ "Blazegraph - Semantic Web Standards" . W3.org . Retrieved 29 August 2018 .
  9. ^ "Announcing Blazegraph Release 1.5.0 | Blazegraph(tm)" . blog.blazegraph.com . Retrieved 17 September 2018 .
  10. ^ "[Wikidata-tech] Wikidata Query Backend Update (take two!)" . lists.wikimedia.org . Retrieved 29 August 2018 . (The message also contains a link to the graph databases comparison performed by Wikimedia.)
  11. ^ "Principes de l'API" . Framagit.io (in French) . Retrieved 29 August 2018 .
  12. ^ Hartig, Olaf; Thompson, Bryan (2014). "Foundations of an Alternative Approach to Reification in RDF". arXiv : 1406.3399 [ cs.DB ].
  13. ^ Hartig, Olaf (2014). "Reconciliation of RDF* and Property Graphs". arXiv : 1409.3288 [ cs.DB ].
  14. ^ "TinkerPop-enabled Providers" . tinkerpop.apache.org . Archived from the original on 10 February 2018 . Retrieved 29 August 2018 . (Currently, the Blazegraph logo is replaced with the Amazon Neptune logo.)
  15. ^ "Blazegraph TinkerPop Implementation" . GitHub.com . Retrieved 29 August 2018 .
  16. ^ Fu, Zhisong; Personick, Michael (2014). MapGraph: A High Level API for Fast Development of High Performance Graph Analytics on GPUs . pp. 1?6. ISBN   978-1-4503-2982-8 . {{ cite book }} : |journal= ignored ( help )
  17. ^ "Wikidata Query Service: User manual. Extensions" . MediaWiki.org . Retrieved 29 August 2018 .
  18. ^ "Query Hints" . Blazegraph Wiki . Retrieved 29 August 2018 .
  19. ^ "Named Subquery" . Blazegraph Wiki . Retrieved 29 August 2018 .
  20. ^ "SPARQL and Amazon Web Service's Neptune database" . Bob DuCharme's weblog . Retrieved 29 August 2018 .
  21. ^ "BLAZEGRAPH Trademark of Amazon Technologies, Inc.. Serial Number: 86498414" . Trademarkia.com . Retrieved 29 August 2018 .
  22. ^ "blazegraph.com" . ICANN WHOIS . Retrieved 29 August 2018 .
  23. ^ "Bradley Bebee" . LinkedIn.com . Retrieved 29 August 2018 .

External links [ edit ]

Retrieved from " https://en.wikipedia.org/w/index.php?title=Blazegraph&oldid=1224123145 "