Institutions Using Triple Stores

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Name	Maintainer	Triple Store	Status	Persistence Code	GitHub	Features
Virtual Library Collections	LD4L grant at Cornell	PROD: TBD DEV: rdf-do with sqlite3	In Development with a goal of moving to Production	Active Triples 0.6 (ruby)	https://github.com/ld4l/ld4l_virtual_collection See also: https://github.com/ld4l/ore_rdf https://github.com/ld4l/open_annotation_rdf	Virtual Collection engine that uses ontology specific gems. NOTE: Engine code is expected to be re-written soon to incorporate Blacklight.
Blacklight over Triple Store	Stanford
Heidrun and metadata storage	DPLA	Marmotta	In production but addressing performance issues		http://github.com/dpla/krikri http://github.com/dpla/heidrun
Amherst College Digital Collections	Amherst College	Jena/Fuseki with TDB	In development		https://gitlab.amherst.edu/acdc/repository-extension-services https://github.com/fcrepo4-exts/fcrepo-camel-toolbox/tree/master/fcrepo-indexing-triplestore	Using simple RDFS entailment, asynchronous replication from Fedora via message broker.
UC San Diego Collections	UC San Diego Library	Jena + local implementation to relational DB	In Production		https://github.com/ucsdlib/damsrepo/
Alexandria Digital Library	UC Santa Barbara (and DCE)	Marmotta	In production	Oargun/LinkedVocabs	https://github.com/curationexperts/alexandria-v2 https://github.com/projecthydra-labs/linked_vocabs https://github.com/curationexperts/oargun	Caching external triples. Type-ahead search in editor.