RelationalAI should be categorized as using B-Epsilon-Trees. Doesn't come up for that in search. And data model should just be relational. Yes, it's marketed s

RelationalAI should be categorized as using B-Epsilon-Trees. Doesn't come up for that in search. And data model should just be relational. Yes, it's marketed somewhat as a "graph" db, but its hook is modelling graphs as binary relations and supporting efficient recursive joins to solve graph problems using their (rather elegant) relational language. (Briefly worked there. Smart folks.)