Key points are not available for this paper at this time.
This note gives a brief overview of six types of pattern recognition programs that: 1) preprocess, then characterize; 2) preprocess and characterize together; 3) preprocess and characterize into a "recognition cone;" 4) describe as well as name; 5) compose interrelated descriptions; and 6) converse.
Leonard Uhr (Sat,) studied this question.