Combine concepts to forge new ideas. The further apart the concepts, the more novel the idea. But novelty needs coherence to be creative.
Select two concepts to combine:
In NAL, creativity emerges from concept combination. The system measures novelty by the semantic distance between parent concepts (how unrelated they are) and coherence by whether the combination produces a meaningful inheritance or similarity relation. High novelty + high coherence = creative. High novelty + low coherence = random. Low novelty + high coherence = derivative.