Optimal adaptive performance and delocalization in NK fitness landscapes

Details Optimal adaptive performance and delocalization in NK fitness landscapes Optimal adaptive performance and delocalization in NK fitness landscapes

2001-09-07

arxiv.org/abs/physics/0109020v1

Physica A 304:495-506, 2002

Physics

Biological Physics

14 pages Latex, 5 figures. Uses Elsevier macros 'elsart.cls'. Submitted to Physica A

Scientific paper

10.1016/S0378-4371(01)00572-6

We investigate the evolutionary dynamics of a finite population of sequences adapting to NK fitness landscapes. We find that, unlike in the case of an infinite population, the average fitness in a finite population is maximized at a small but finite, rather than vanishing, mutation rate. The highest local maxima in the landscape are visited for even larger mutation rates, close to a transition point at which the population delocalizes (i.e., leaves the fitness peak at which it was localized) and starts traversing the sequence space. If the mutation rate is increased even further, the population undergoes a second transition and loses all sensitivity to fitness peaks. This second transition corresponds to the standard error threshold transition first described by Eigen. We discuss the implications of our results for biological evolution and for evolutionary optimization techniques.

Affiliated with

Also associated with

No associations

Rating

Optimal adaptive performance and delocalization in NK fitness landscapes does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Optimal adaptive performance and delocalization in NK fitness landscapes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optimal adaptive performance and delocalization in NK fitness landscapes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-509201