59 results about "Radial basis function" patented technology

A radial basis function (RBF) is a real-valued function φ whose value depends only on the distance between the input and some fixed point, either the origin, so that φ(𝐱)=φ(|𝐱|), or some other fixed point 𝐜, called a center, so that φ(𝐱)=φ(|𝐱-𝐜|). Any function φ that satisfies the property φ(𝐱)=φ(|𝐱|) is a radial function. The distance is usually Euclidean distance, although other metrics are sometimes used.