From phhht at earthlink.net Sat Jun 6 14:42:41 2009 From: phhht at earthlink.net (philip tucker) Date: Sat, 6 Jun 2009 11:42:41 -0700 Subject: [galib] a notion of speed in GALib - RFC Message-ID: For some time I've been thinking about how to get some measure, in some sense, of how fast a population of genomes is changing. The units of this measure seem apparent: bits/generation. Here's what I did. For concreteness, let's take GAInc. At the beginning of each step(), I save the current state of a genome. At the end of the step, I save the Hamming distance (in bits, not percent) between the original and current states of the genome. At statistics report time, I report the speed as the arithmetic mean of the distances collected. I'd like to hear from you with any comments you have. In particular, is there a better or alternative way to measure speed? What's wrong with this way? This technique also works for GASimple. In GASState, the technique is complicated by uncertainity that I am measuring the initial and final states of the same genome. But does that matter much? Thanks very much for your comments. From sbahri at rocketmail.com Sat Jun 27 05:24:08 2009 From: sbahri at rocketmail.com (Sjaiful Bahri) Date: Sat, 27 Jun 2009 02:24:08 -0700 (PDT) Subject: [galib] Search For News Message-ID: <419410.73314.qm@web30206.mail.mud.yahoo.com> FYI, Zipclue is designed to crawl news information on the web effectively and efficiently using genetic identification. http://zipclue.com Cheers