// InnerProduct computes the inner product through a kernel trick
// K(x, y) = (x^T y + 1)^d
func (p *PolyKernel) InnerProduct(vectorX *mat64.Dense, vectorY *mat64.Dense) float64 {
result := vectorX.Dot(vectorY)
result = math.Pow(result+1, float64(p.degree))
return result
}
// Compute Eucledian inner product.
func (self *Euclidean) InnerProduct(vectorX *mat64.Dense, vectorY *mat64.Dense) float64 {
result := vectorX.Dot(vectorY)
return result
}