oversampling property
Oversampling factor for quantization.
Defines how many extra vectors should be pre-selected using quantized index, and then re-scored using original vectors.
For example, if oversampling is 2.4 and limit is 100, then 240 vectors will be pre-selected using quantized index,
and then top-100 will be returned after re-scoring.
Implementation
@$pb.TagNumber(3)
$core.double get oversampling => $_getN(2);