C# 클래스 SharpNeat.DistanceMetrics.EuclideanDistanceMetric

Euclidean distance metric. The Euclidean distance is given by sqrt(sum(delta^2)) Where [delta] is the absolute position difference in a given dimension (on a given axis).
상속: IDistanceMetric
파일 보기 프로젝트 열기: colgreen/sharpneat

공개 메소드들

메소드 설명
CalculateCentroid ( IList coordList ) : CoordinateVector

Calculates the centroid for the given set of points. For the Euclidean distance metric the centroid is given by calculating the componentwise mean over the set of points.
CalculateCentroidParallel ( IList coordList ) : CoordinateVector

Parallelized version of CalculateCentroid().
MeasureDistance ( CoordinateVector p1, CoordinateVector p2, double threshold ) : bool

Tests if the distance between two positions is less than some threshold. A simple way of implementing this method would be to calculate the distance between the two coordinates and test if it is less than the threshold. However, that approach requires that all of the elements in both CoordinateVectors be fully compared. We can improve performance in the general case by testing if the threshold has been passed after each vector element comparison thus allowing an early exit from the method for many calls. Further to this, we can begin comparing from the ends of the vectors where differences are most likely to occur.
MeasureDistance ( CoordinateVector p1, CoordinateVector p2 ) : double

Measures the distance between two positions.

메소드 상세

CalculateCentroid() 공개 메소드

Calculates the centroid for the given set of points. For the Euclidean distance metric the centroid is given by calculating the componentwise mean over the set of points.
public CalculateCentroid ( IList coordList ) : CoordinateVector
coordList IList
리턴 SharpNeat.Core.CoordinateVector

CalculateCentroidParallel() 공개 메소드

Parallelized version of CalculateCentroid().
public CalculateCentroidParallel ( IList coordList ) : CoordinateVector
coordList IList
리턴 SharpNeat.Core.CoordinateVector

MeasureDistance() 공개 메소드

Tests if the distance between two positions is less than some threshold. A simple way of implementing this method would be to calculate the distance between the two coordinates and test if it is less than the threshold. However, that approach requires that all of the elements in both CoordinateVectors be fully compared. We can improve performance in the general case by testing if the threshold has been passed after each vector element comparison thus allowing an early exit from the method for many calls. Further to this, we can begin comparing from the ends of the vectors where differences are most likely to occur.
public MeasureDistance ( CoordinateVector p1, CoordinateVector p2, double threshold ) : bool
p1 SharpNeat.Core.CoordinateVector
p2 SharpNeat.Core.CoordinateVector
threshold double
리턴 bool

MeasureDistance() 공개 메소드

Measures the distance between two positions.
public MeasureDistance ( CoordinateVector p1, CoordinateVector p2 ) : double
p1 SharpNeat.Core.CoordinateVector
p2 SharpNeat.Core.CoordinateVector
리턴 double