26 March 2014

Present: Lee, Tom (scribe), Bill, Charles Ofria

Note: Student travel grants for GECCO are now open for application.

Diversity

  • Charles suggests using (average) Hamming distance of output vectors instead of behavioral diversity to measure the population diversity
    • This will do a better job of measuring the coverage of the phenotypic space (or “trait coverage”)
    • could just sample this, don’t have to compare every pair of individuals

Discussion of co-solvability paper

  • Very related in motivation to lexicase
  • lexicase is mostly different in that it can select individuals that are really bad at a few test cases as long as they are really good at others.
  • Also, co-solvability requires binary test cases, without an obvious way to use on non-binary cases

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