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autoassociative backpropagation network a multilayer perceptron network that is trained by presenting the same data at both autobank an array of autotransformers . autoconfiguration a process that deter- mines what hardware actually exists during autocorrelation a measure of the statis- tical dependence between two samples of the R xx (t 1 , t 2 ) = E [X (t 1 ) X (t 2 )] . See also autocorrelation function the expected value of the product of two random vari- autocorrelator a circuit that computes the autocorrelation function. autocovariance (1) for a random process f (t), a measure of the variability of the mean- C f (t 1 , t 2 ) = E h f (t 1 )f (t 2 ) T i −E[f (t 1 )]E[f (t 2 ) T ]. (2) for a random vector x, a measure of the mean-square variability of a random vector x about its mean: 3 x = E h (x − E[x])(x − E[x]) T i . See also autodecrementing (1) an addressing mode in which the value in a register is decre- (2) in high-level languages, operation i −− ⇒ i = i − 1 where i is arbitrary variable, register or mem- ory location. (3) in machine code, more generally, the processor decrements the contents of the reg- autoincrementing (1) an addressing mode in which the value in a register is incre- (2) in high-level languages: operation i ++ ⇒ i = i + 1 where i is arbitrary variable, register or mem- ory location. (3) in machine code, after evaluating the operand address contained in the register, the automated meter reading (AMR) the use of meters which have the capability of automatic (1) property pertaining to a process or a device that functions without in- c 2000 by CRC Press LLC |