MachineLearningTheArtandScienceofAlgorithmsthatMakeSenseofData
ThereareanumberofusefulwaysinwhichwecanexpresstheSpamAssassinclassifierinmathematicalnotation.Ifwedenotetheresultofthei-thtestforagivene-mailasxi,wherexi=1ifthetestsucceedsand0otherwise,andwedenotetheweightofthei-thtestaswi,thenthetotalscoreofane-mailcanbeexpressed
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