Software Failure Time Prediction Method Based on Correlation Vector Regression Estimation
A regression estimation and failure time technology, applied in the field of software failure time data prediction, which can solve problems such as over-learning applicability.
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[0036] 1) Data normalization
[0037] When using the regression estimation algorithm for learning prediction, it is first necessary to normalize all input and output data to the interval [0.1,0.9]. The specific conversion formula is: y = 0.8 Δ x + ( 0.9 - 0.8 × x m a x Δ ) , Among them, y is the normalized value, x is the actual value, and x max is the maximum value in the data set, x min is the minimum value, Δ=x max -x min , after the forecast is over, the following mapping is used to map the data back to the actual value:
[0038] 2) Problem Transformation
[0039] Assume that the software failure time that has occurred is t 1 ,t 2 ,...,t n , let t l =...
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