ACM

Communications of the ACM

Home/Magazine Archive/July 1973 (Vol. 16, No. 7)/Equivalence between AND/OR graphs and context-free.../Abstract

Equivalence between AND/OR graphs and context-free grammars

By Patrick A. V. Hall
Communications of the ACM, July 1973, Vol. 16 No. 7, Pages 444-445
10.1145/362280.362302
Comments

View as: Print Mobile App ACM Digital Library Full Text (PDF) Share:

Recent research in artificial intelligence has led to AND/OR graphs as a model of problem decomposition (Nilsson [3]; Simon and Lee [4]). However, AND/OR graphs of a restricted type are equivalent to context-free grammars. This can be set-up formally (the beginnings of a formalism of AND/OR graphs is contained in [4]), but the formalism is so obvious that a brief discussion and example suffice.

The full text of this article is premium content

No entries found

Log in to Read the Full Article

Sign In

Sign in using your ACM Web Account username and password to access premium content if you are an ACM member, Communications subscriber or Digital Library subscriber.

Need Access?

Please select one of the options below for access to premium content and features.

Create a Web Account

If you are already an ACM member, Communications subscriber, or Digital Library subscriber, please set up a web account to access premium content on this site.

Join the ACM

Become a member to take full advantage of ACM's outstanding computing information resources, networking opportunities, and other benefits.

Subscribe to Communications of the ACM Magazine

Get full access to 50+ years of CACM content and receive the print version of the magazine monthly.

Purchase the Article

Non-members can purchase this article or a copy of the magazine in which it appears.