---
title: "A Control Structure For A Question-Answering System"
authors:
  - "P. Madama"
doi: ""
url: "https://ijcai.org/proceedings/1975/85"
pdf: "https://ijcai.org/proceedings/1975/0085.pdf"
venue: "Proceedings of the Fourth International Joint Conference on Artificial Intelligence"
year: 1975
pages: "542-547"
track: "A.I. Software"
keywords:
---

# A Control Structure For A Question-Answering System

P. Madama

*Proceedings of the Fourth International Joint Conference on Artificial Intelligence*, pages 542-547.

## Abstract

The control structure of a questionanswering system is derived from a set of basic assumptions. For its design and implementation, a normal algorithmic language is used. The design leads to "symmetric" procedures, the resulting programs use the stack mechanism for recursion to give the correct storage allocation. Two strategies are discussed in more detail: a trivial well-known depth-first strategy and a new one, called flexible decision tree strategy. No linguistic aspects (either syntactic or semantic) of the system are discussed.