9. The method of claim 7 , wherein the generating the first plurality of bit-strings comprises: for each sample in the first set of samples, generating a sequence of bits until a predetermined bit value is generated; selecting a subset of samples from the first set of samples based on a length of each sequence of bits; for each sample in the subset of samples, generating a bit-string for the sample; and adding the generated bit-strings to the first plurality of bit-strings.
10. The method of claim 9 , wherein generating the sequence of bits until the predetermined bit value is generated comprises generating the sequence of bits until a bit with a value of one is generated.