22 July 2013

Present: Lee, Tom (scribe), Kyle, Jake, Kwaku (hangouts)

Next lab meetings: 7/30/13 and 8/7/13.

Reading: Lee will send around a paper to read for the 8/7/13 meeting.

Lexicase

 * Lee's improvements:
 * Idea: what's important is case sequences, not cases by themselves.
 * "Condensed" lexicase: Find all of the sets of elites that can be reached through lexicase, and then select one at random and a random individual from that set.
 * Paper
 * Rough draft by end of week
 * Ignore population size / test case stuff for now.
 * Homologous selection and lexicase together?

Brevis
Speedups are in the works.

Visualization

 * Stack traces are looking great!
 * Tom will send Jake some stack traces of big (maybe real) programs.

GECCCO Report

 * Jeff Clune - discussed connection costs in programs
 * Kris Krawiec - GSXover discussion
 * Stack-based workshop was small but some interesting ideas
 * Leonardo Trujillo - discussion about novelty search to refine fitness function.
 * includes program modality
 * combines advantages of novelty search and guided by error search.