sklearn.utils.murmurhash3_32

sklearn.utils.murmurhash3_32()

Compute the 32bit murmurhash3 of key at seed.

The underlying implementation is MurmurHash3_x86_32 generating low latency 32bits hash suitable for implementing lookup tables, Bloom filters, count min sketch or feature hashing.

Parameters:	key : int32, bytes, unicode or ndarray with dtype int32 the physical object to hash seed : int, optional default is 0 integer seed for the hashing algorithm. positive : boolean, optional default is False True: the results is casted to an unsigned int from 0 to 2 ** 32 - 1 False: the results is casted to a signed int from -(2 ** 31) to 2 ** 31 - 1