Changes

The lines in the figure are part of a contour line enclosing a region of acceptability in the landscape. At the start the cluster of red points represents a very homogeneous population with small variances in the phenotypes. Evidently, even small environmental changes in the landscape, may cause the process to become extinct.

The lines in the figure are part of a contour line enclosing a region of acceptability in the landscape. At the start the cluster of red points represents a very homogeneous population with small variances in the phenotypes. Evidently, even small environmental changes in the landscape, may cause the process to become extinct.

web.telia.com/~u91131915/mountain_crest.GIF

http://web.telia.com/~u91131915/mountain_crest.GIF

After a sufficiently large number of generations, the increase in [[average information]] may result in the green cluster. Actually, the mean fitness is the same for both red and green cluster (about 65%). The effect of this adaptation is not very salient in a 2-dimensional case, but in a high-dimensional case, the efficiency of the search process may be increased by many orders of magnitude. Besides, a Gaussian distribution has the highest [[average information]] as compared to other distributions having the same second order moment matrix, Middleton, 1960.

After a sufficiently large number of generations, the increase in [[average information]] may result in the green cluster. Actually, the mean fitness is the same for both red and green cluster (about 65%). The effect of this adaptation is not very salient in a 2-dimensional case, but in a high-dimensional case, the efficiency of the search process may be increased by many orders of magnitude. Besides, a Gaussian distribution has the highest [[average information]] as compared to other distributions having the same second order moment matrix, Middleton, 1960.