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Issue No.04 - July/August (1992 vol.9)
pp: 34-42
ABSTRACT
<p>Two techniques that analyze prediction accuracy and enhance predictive power of a software reliability model are presented. The u-plot technique detects systematic differences between predicted and observed failure behavior, allowing the recalibration of a software reliability model to obtain more accurate predictions. The perpetual likelihood ratio (PLR) technique compares two models' abilities to predict a particular data source so that the one that has been most accurate over a sequence of predictions can be selected. The application of these techniques is illustrated using three sets of real failure data.</p>
INDEX TERMS
reliability measures; prediction accuracy; predictive power; software reliability model; u-plot technique; recalibration; perpetual likelihood ratio; data source; real failure data; software reliability
CITATION
Sarah Brocklehurst, Bev Littlewood, "New Ways to Get Accurate Reliability Measures", IEEE Software, vol.9, no. 4, pp. 34-42, July/August 1992, doi:10.1109/52.143100
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