Graph databases

RDF (http://etutorials.org/Misc/Practical+resource+description+framework+rdf/Chapter+1.+RDF+An+Introduction/1.1+The+Semantic+Web+and+RDF+A+Brief+History/) https://ontosql.inria.fr/ Jena - https://www.cs.uic.edu/~ifc/SWDB/papers/Wilkinson_etal.pdf

RDF intro - http://etutorials.org/Misc/Practical+resource+description+framework+rdf/Chapter+1.+RDF+An+Introduction/

Time variant graph data: https://github.com/RecallGraph/RecallGraph (and https://news.ycombinator.com/item?id=23455516)

GraphBLAS http://mit.bme.hu/~szarnyas/grb/graphblas-introduction.pdf

Amazon Neptune https://news.ycombinator.com/item?id=15808379

NBA Graph analytics https://github.com/andrewstellman/pbprdf

Opinions on Graph databases - https://news.ycombinator.com/item?id=16542183 And https://www.datastax.com/blog/letter-regarding-native-graph-databases

Blazegraph https://github.com/blazegraph/database https://blazegraph.com/docs/bigdata_architecture_whitepaper.pdf https://blazegraph.com/

Why google needs a graph database - https://dgraph.io/blog/post/why-google-needed-graph-serving-system/ (https://news.ycombinator.com/item?id=19168075)

NebulaGraph - https://github.com/vesoft-inc/nebula

RDF and SparkQL - http://olafhartig.de/slides/RDFStarInvitedTalkWSP2018.pdf http://www.snee.com/bobdc.blog/2018/04/reification-is-a-red-herring.html

rdf4j https://github.com/eclipse/rdf4j

janusgraph - https://janusgraph.org/