Abstract: A system and method have been provided for classifying electronic signatures, obtained through the detection of a vehicle with a single loop inductive sensor, into one of a plurality of vehicle classification groups. A neural networking process is able to learn the plurality of vehicle classifications. In response to an electronic signature stimulus, the neural networking process is able to recall the classification group corresponding to the signature.

Abstract: A method and apparatus for training neural networks using evolutionary programming. A network is adjusted to operate in a weighted configuration defined by a set of weight values and a plurality of training patterns are input to the network to generate evaluations of the training patterns as network outputs. Each evaluation is compared to a desired output to obtain a corresponding error. From all of the errors, an overall error value corresponding to the set of weight values is determined. The above steps are repeated with different weighted configurations to obtain a plurality of overall error values. Then, for each set of weight values, a score is determined by selecting error comparison values from a predetermined variable probability distribution and comparing them to the corresponding overall error value. A predetermined number of the sets of weight values determined to have the best scores are selected and copies are made.

Abstract: A periodontal probe system for measurement, storage, and display of periodontal pocket depth, gingival level and periodontal attachment level of the teeth. In the system, a periodontal probe instrument includes an elongate tip with a measurement arrangement that simultaneously measures periodontal pocket depth, gingival level, and periodontal attachment level at each of a plurality of probe sites around a tooth. The measurement arrangement provides depth signals indicative of the pocket depth and attachment level measured. Gingival level is computed as the arithmetic difference between the attachment level and the pocket depth. A pressure sensor in the probe provides a pressure signal indicative of the pressure acting on the tip of the probe. A signal processing apparatus is connected to receive the pressure signal and the depth signals. A periodontal measurement is made by inserting the tip of the probe into the gum pocket and gradually increasing the pressure on the probe tip after insertion.