Outlier correction with a median method

The invention provides methods and apparatus, including computer program products, for determining characteristic parameters on the basis of a series of m values, H_1, H_2, . . . , H_m, over time, the values being descriptive for a predetermined process, the series having linear characteristics, the...

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Bibliographic Details
Main Authors MOESSNER RALPH, THEIS STEFAN
Format Patent
LanguageEnglish
Published 23.06.2005
Edition7
Subjects
CALCULATING
COMPUTING
COUNTING
DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FORADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORYOR FORECASTING PURPOSES
HOROLOGY
PHYSICS
SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE,COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTINGPURPOSES, NOT OTHERWISE PROVIDED FOR
TIME-INTERVAL MEASURING
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Summary:The invention provides methods and apparatus, including computer program products, for determining characteristic parameters on the basis of a series of m values, H_1, H_2, . . . , H_m, over time, the values being descriptive for a predetermined process, the series having linear characteristics, the method comprising: computing differences, denoted as Delta_i, between pairs of values of points of the historical time series, the points having a predetermined time distance to each other, denoted as p; determining the median value, denoted as Delta_i_M, of the computed differences Delta_i; computing, on the basis of the determined median value Delta_i_M, a trend parameter, denoted as T, T being defined as T=Delta_i_M/p.
Bibliography:Application Number: US20040021591