Are there computational (or otherwise not shown) costs to the members that continue in the free case but are pruned in the selection case?
On 1/2/19 7:44 AM, Marcus Daniels wrote: > Here are a couple of plots from a large constrained optimization problem I've > been running. > In the first case, I apply selection pressure: If a solution is not in the > top 200 performers, it dies. > In the second case, the population can continue to grow without concern for > its performance. > This is a 5900-dimensional pseudo-boolean problem and the best-known solution > is around 2.61e+08. Note the low end of the y axis is not close to this. > In both cases, aggressive efforts are made to diversify the population and in > both cases every shown solution is unique (even though their energies can > collide). > > In this case, I would argue that selection pressure has accomplished nothing > -- conservatism doesn't work if the goal is to create the most fit > individuals. The mean moves, if you care about that. But the very best > solutions are nearly the same, and neither have come close to the optimal. -- ∄ uǝʃƃ ============================================================ FRIAM Applied Complexity Group listserv Meets Fridays 9a-11:30 at cafe at St. John's College to unsubscribe http://redfish.com/mailman/listinfo/friam_redfish.com archives back to 2003: http://friam.471366.n2.nabble.com/ FRIAM-COMIC http://friam-comic.blogspot.com/ by Dr. Strangelove
