Robust distance measures for on-line monitoring
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United States of America Patent
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Nov 13, 2012
Grant Date -
Jul 31, 2008
app pub date -
Dec 14, 2007
filing date -
Dec 15, 2006
priority date (Note) -
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Abstract
An apparatus and associated method are utilized for monitoring an operation of a system characterized by operational parameters. A non-parametric empirical model generates estimates of parameter values in response to receiving a query vector of monitored parameters for a model characterizing the system. A distance estimation engine (a) determines robust distances between the query vector and each of a set of predetermined historical vectors for the non-parametric empirical model based on an implementation of an elemental kernel function; (b) determines weights for the monitored parameters based on the robust distances; and (c) combining the weights with the predetermined historical vectors to make predictions for the system.
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