Editing Markov decision process (section)

====Modified policy iteration====
In modified policy iteration ({{harvnb|van Nunen|1976}}; {{harvnb|Puterman|Shin|1978}}), step one is performed once, and then step two is repeated several times.<ref>{{cite journal|first1=M. L.|last1=Puterman|last2=Shin|first2=M. C.|title=Modified Policy Iteration Algorithms for Discounted Markov Decision Problems|journal=Management Science|volume=24|issue=11|year=1978|doi=10.1287/mnsc.24.11.1127|pages=1127–1137}}</ref><ref>{{cite journal|first=J.A. E. E|last=van Nunen|title=A set of successive approximation methods for discounted Markovian decision problems |journal= Zeitschrift für Operations Research|volume=20|issue=5|pages=203–208|year=1976|doi=10.1007/bf01920264|s2cid=5167748}}</ref> Then step one is again performed once and so on.