Abstract: Methods, systems, and computer-readable media for identifying potentially redundant alarms based on a statistical correlation calculated between categories of alarms are provided. Each alarm in a compilation of alarm history data is assigned to an alarm category. A coefficient of correlation is computed between each distinct pair of alarm categories that indicates the probability that an alarm assigned to the second category of the pair occurs coincidentally within the alarm history data with an alarm assigned to the first category of the pair, given that an alarm assigned to the first category has occurred. Finally, a list of potentially redundant alarms is created consisting of pairs of alarm categories having a coefficient of correlation equal to or exceeding a threshold value.

Abstract: Methods, systems, and computer-readable media for identifying potentially redundant alarms based on a statistical correlation calculated between categories of alarms are provided. Each alarm in a compilation of alarm history data is assigned to an alarm category. A coefficient of correlation is computed between each distinct pair of alarm categories that indicates the probability that an alarm assigned to the second category of the pair occurs coincidently within the alarm history data with an alarm assigned to the first category of the pair, given that an alarm assigned to the first category has occurred. Finally, a list of potentially redundant alarms is created consisting of pairs of alarm categories having a coefficient of correlation equal to or exceeding a threshold value.

Abstract: An electronic printer employing a bundle of optical fibers organizes the fiber ends in first and second faces of the bundle in a linear array and in an annulus or ring array respectively. A spinning prism is operative to image a linear array of light sources onto a segment of the annulus and move the image through a succession of positions to cover the entire area of the annulus in one revolution providing the pixels for a linear segment of a photosensitive medium optically coupled to the first face of the bundle.