---
title: "The 2 PAK Language: Goals And Descriptions"
authors:
  - "L. Melli"
doi: ""
url: "https://ijcai.org/proceedings/1975/86"
pdf: "https://ijcai.org/proceedings/1975/0086.pdf"
venue: "Proceedings of the Fourth International Joint Conference on Artificial Intelligence"
year: 1975
pages: "549-554"
track: "A.I. Software"
keywords:
---

# The 2 PAK Language: Goals And Descriptions

L. Melli

*Proceedings of the Fourth International Joint Conference on Artificial Intelligence*, pages 549-554.

## Abstract

This paper describes a programming language, 2.PAK, whose main aim is to provide a set of primitives suitable for Artificial Intelligence applications. In addition, 2.PAK tries to incorporate principles obtained from research into programming languages in general. The main features of the language include a data base composed of directed labelled graphs, hierarchical and heterarchical control structures, backtracking primitives (applicable to either control structure), and a generalized form of pattern matching.