On 10/26/2011 3:01 PM, Steffen DETTMER wrote:
4. Truncate the string to your desired file name length, but not so
short that accidental collisions become likely (Example to
keep up to 16000 file names likely different, use file names with 2
*
log2(16000)=2*14=28 bits minimum).
Where can I learn more about this formula?
I think it does not work well for small number of files
and I wonder why it isn't something like "log2(n)+20"
or "2*log2(n)+10" or so?
Google "Birthday paradox", the formula I gave is a rough and not very
precise
variant.
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