# Is recursion used in practice to improve performance of AI systems?

Is there any methods by which artificial intelligence use recursion(s) to solve a certain issue or to keep up working and calculating?

• Can you clarify the phrase 'keep up working and calculating'? – NietzscheanAI Aug 7 '16 at 7:13

This page gives an example in which recursive version of the Fibonacci function, which has asymptotic execution time $$n^{1.6}$$, which is reduced to $$n$$ by the use of memoization.