func (this *Stream) AddVectorOnlineStep(vec []float64) *itemset.Centroid {
c := itemset.NewCentroidStream(vec)
tmpvar := this.varianceTracker.UpdateVarianceSample(vec)
if this.variance != tmpvar {
for _, lsh := range this.lshGroup {
lsh.UpdateDecoderVariance(tmpvar)
}
this.variance = tmpvar
}
for _, lsh := range this.lshGroup {
hash := lsh.LSHHashStream(vec, this.rphashObject.GetNumberOfBlurs())
for _, h := range hash {
c.AddID(h)
}
}
return c
}
func NewCentroidStream(vec []float64) types.Centroid {
return itemset.NewCentroidStream(vec)
}