CGIF, aka Conceptual Graph Interchange Format, is a data notation created in 1976 by John F. Sowa.
| #2261on PLDB | 50Years Old |
A conceptual graph (CG) is a representation for logic as a bipartite graph with two kinds of nodes, called concepts and conceptual relations. The Conceptual Graph Interchange Format (CGIF) is a fully conformant dialect of Common Logic (CL) that serves as a serialized representation for conceptual graphs.
[Go: *x] [Person: John] [City: Boston] [Bus: *y]
(Agnt ?x John) (Dest ?x Boston) (Inst ?x ?y)