Patent ID: 8750285

Claim:
A method comprising: receiving a communication packet from an entity; defining the packet as an n-dimensional feature vector, the n-dimensional feature vector comprising n feature values; mapping the n-dimensional feature vector to a point in an n-dimensional affine feature space; defining a feature prism within the n-dimensional affine feature space, wherein the feature prism is an axes aligned n-dimensional cuboid defined by specifying a contiguous subrange for each feature, and wherein the feature prism represents a set of geometrically coherent classification criteria; and classifying the packet, wherein classifying the packet comprises determining whether the feature prism encloses the n-dimensional feature vector, and wherein the feature prism encloses the n-dimensional feature vector when each of the n feature values of the n-dimensional feature vector is within the contiguous subrange specified in the feature prism for that feature.