Brand X: LISP support for semantic networks
Peter Szolovits, William A. Martin · International Joint Conference on Artificial Intelligence · 1981
BRAND X is a simple representation implemented as a pure extension of LISP. BRAND X provides the following additional facilities over LISP: Unique and canonical structures, property lists for all objects, labels for all objects, and a syntax to express each of these, supported by a reader and printer. BRAND X is intended as an assembly language for representation languages, attempting to provide facilities generally found useful in the simplest manner, without any strong commitment to specific representational conventions. The fundamental ideas of the are described, an overview of its features and notation is given, and some inherent problems of implementation and semantics are presented.