RETE is often used as the inference engine for RDF/OWL/SPARQL servers. (I believe Sesame/SAIL was one of the first in early 2000s using Jena [1]) Since there ar

RETE is often used as the inference engine for RDF/OWL/SPARQL servers. (I believe Sesame/SAIL was one of the first in early 2000s using Jena [1]) Since there are many graph databases now, some have added RDF/OWL and inference support. [1] - https://jena.apache.org/documentation/inference/ https://jena.apache.org/documentation/inference/ Related https://en.wikipedia.org/wiki/Semantic_reasoner https://en.wikipedia.org/wiki/Semantic_reasoner Some more background http://www.stat.ucla.edu/~tukw/waim05.pdf http://www.stat.ucla.edu/~tukw/waim05.pdf