| 摘要 |
<p>A digital structure (215) for sorting events each having an attribute belonging to one of a plurality of classes (Ei), each class (Ei) being defined by at least one value of the attribute, in which the digital structure (215) includes means (315) for storing an integer pseudo-deviation (PSi) associated with each class (Ei), means (310, 320, 330) for increasing, upon the occurrence of each event, the pseudo-deviation (PSi) corresponding to the class (Ei) to which the attribute of the event which has occurred belongs, means (325, 330, 350) for decreasing all of the pseudo-deviations (PSi) by an integer decrement value (Dec) when the sum of the pseudo-deviations reaches a predetermined value (PV), and means (355m) for supplying a pseudo-mean (PM) equal to the product of the decrement value (Dec) and a number of times the pseudo-deviations (PSi) have been decreased, a frequency (Fi) of each class (Ei) being determined by adding the corresponding pseudo-deviation (PSi) to the pseudo-mean (PM). <IMAGE></p> |
