Namer: A Pattern-Recognition System for Generating Sentences About Relations Between Line Drawings

摘要

This document reports on a series of experimental programs used to recognize line drawings and the spatial relationships between them. At the pattern-recognition level the programs in this experiment learn to associate a name with a generalized bit pattern representing a line drawing. At the relation-learning level, the programs abstract characteristics which relate to such spatial concepts as 'above', 'left', 'thicker than', etc. The names that have been learned in association with a drawing, and relation names which the program selects as true for the spatial relations between two drawings, are substituted into a simple generation grammar; variations of sentences that are true for the picture are then generated. (Author)