Fig. 8From: Automatic weighing attribute to retrieve similar lung cancer nodulesUpdate weighting methodology for the n retrieved nodules. f is the number of attributes used to represent the nodules, Πf represents the projection of attribute f over nodules retrieved matrix, σ −1(Πf ) represents the application of inverse of deviation pattern over the resulting sample from projection Πf , and w f is the weight of attribute a f Back to article page