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Perceptual Neighborhood Neural Network (P3N™) is the result of a research started to give answers to some issues raised in the DARPA GARD (Guaranteeing AI Robustness Against Deception) program.

 

One of the main problems of Pattern Recognition is related to the Norm used to calculate vector distances. The most used Norms are the Euclidean Distance (L2 Norm), the Manhattan Distance (L1 Norm or Polyhedral Volume Influence Field) and the Box Distance (LSUP Norm, L-Infinity Norm or Hyper-Cube Influence Field).

The L2 Norm and L1 Norm guarantee excellent generalization and are typically preferred in pattern recognition applied to images, but they can be deceived quite easily. The LSUP Norm is very sensitive to noise on single vector components and hardly applicable to images but it can be very difficult to deceive. The philosopher's stone of Norm is the Perceptual Neighborhood.

We have been experimenting with algorithms based on Perceptual Neighborhood and Modified Restricted Coulomb Energy.

The goal of the new metric is the maximization of the product Generalization * Robustness and the minimization of the parameters.

A P3N™ (Perceptual Neighborhood Neural Network™) is a neural network based on a Data-Base of humanly indistinguishable Perceptual Influence Fields. We have currently defined the mathematical model of the neural classifier P3N™ based on perceptual neighborhoods and we are developing the software model.

 

 

 

 

 

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