Esempio n. 1
0
func (this *Stream) GetCentroids() [][]float64 {
	if this.centroids == nil {
		this.Run()
		var centroids [][]float64
		for _, cent := range this.centroidCounter.GetTop() {
			centroids = append(centroids, cent.Centroid())
		}
		this.centroids = defaults.NewKMeansStream(this.rphashObject.GetK(), centroids, this.centroidCounter.GetCounts()).GetCentroids()
	}
	return this.centroids
}
Esempio n. 2
0
func (this *Stream) GetCentroidsOfflineStep() [][]float64 {
	var centroids [][]float64
	var counts []int64
	for i := 0; i < len(this.centroidCounter.GetTop()); i++ {
		centroids = append(centroids, this.centroidCounter.GetTop()[i].Centroid())
		counts = append(counts, this.centroidCounter.GetCounts()[i])
	}
	this.centroids = defaults.NewKMeansStream(this.rphashObject.GetK(), centroids, counts).GetCentroids()
	count := int((utils.Max(counts) + utils.Min(counts)) / 2)
	counts = []int64{}
	for i := 0; i < this.rphashObject.GetK(); i++ {
		counts = append(counts, int64(count))
	}
	this.counts = counts
	return this.centroids
}