# Summary of #hplusroadmap IRC Log (July 20, 2012)

The log contained minimal substantive discussion, but these points were notable:

• A genetic algorithm project called "Pareidoloop" was shared (http://iobound.com/pareidoloop/), which uses genetic algorithms for face detection, with sample outputs shared.

• Discussion about similarity-preserving hash functions occurred, with SimHash (http://matpalm.com/resemblance/simhash/) and Burrows-Wheeler Transform suggested for efficiently comparing large datasets for similarity.

• A critique was made that many JavaScript-based genetic algorithm demonstrations suffer from premature convergence to local optima and fail to implement modern techniques like clade mixing and age-layered progression.

• A RepRap 3D printer design was briefly discussed with a link to a forum post (http://forums.reprap.org/read.php?1,143354), with comments about stability and print times.

• A participant asked about the status of the transhumanist technical roadmap, to which someone replied it was "undergoing revisions."