Steps
Matching: input is 1 pattern & 1 str;output is “yes”/“no” (deterministic pattern) or score (probabilistic pattern).
Discovery: find patterns matching some/all of input structures (choose patterns with high as possible fitness value to input structures)
Comparison: input pair of structure descriptions (or description/pattern pair), find (local/global) similarities, optimise similarity measure, output score.
- Similarity may be represented as a pattern