История одной идеи

Abstract

The article covers the evolution of the idea of taking subsequent context into account. This idea emerged in the middle of 1950th in the automated Russian-English translation task. The article describes its trial implementation for the task of efficient object program in compilers in 1970th, and its modern implementation for the task of width-first searching problem decisions. Different techniques to implement this idea were applied, the most effective being the technique that uses BDD (binary decision diagrams). Finally, the advantages of the width-first method, as compared to traditional mechanism of backtracking (depth-first method) for wide class of recursive search tasks are claimed.