tedvh
commented
10 years ago good thought. Would there still be a way to get the same result twice if one wanted to? This could be useful for testing purposes.
On 7/23/13 2:00 AM, Elliot Robinson wrote:
Per Good Practice in (Pseudo) Random Number Generation for Bioinformatics Applications http://www0.cs.ucl.ac.uk/staff/d.jones/GoodPracticeRNG.pdf, the Mersenne Twister's randomness properties can suffer if seeded with a simple seed (from the binary viewpoint, the more zeroes there are starting from the MSB moving toward the LSB, the simpler the value).
Proposed remedyInstead of using user-provided seeds directly, hash values prior to seeding. Additionally, generate and discard between several hundred and several thousand values to "warm up" the PRNG.
— Reply to this email directly or view it on GitHub https://github.com/argiopetech/base/issues/38.
Ted von Hippel
Department of Physical Sciences Embry-Riddle Aeronautical University 600 S. Clyde Morris Boulevard Daytona Beach, FL 32114-3900 386-226-7751
argiopetech
Per Good Practice in (Pseudo) Random Number Generation for Bioinformatics Applications, the Mersenne Twister's randomness properties can suffer if seeded with a simple seed (from the binary viewpoint, the more zeroes there are starting from the MSB moving toward the LSB, the simpler the value).
Proposed remedy
Instead of using user-provided seeds directly, hash values prior to seeding. Additionally, generate and discard between several hundred and several thousand values to "warm up" the PRNG.