Abstract：The sensitivity of Adaline to weight perturbation is discussed. Considering the discrete feature of input and output of Adaline, the sensitivity is defined as the probability of an Adaline's output inversion due to the weight perturbation with respect to all possible inputs. By hypersphere model and analytical geometry technique, a method is proposed for approximately computing the sensitivity. Under the circumstance of high enough input dimension, the method is prior to other existing methods. It reduces computational complexity greatly with little sacrifice in precision and makes the sensitivity more practical.
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2009, Vol. 22 
