Lecture 3 Modeling.pdf
Lecture 3 Modeling.pdf
Lecture 3 Modeling.pdf
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Singular Value DecompositionMMMM M: a term − document matrix with t rows and N columnst=K S DM : a N × N document − to − document matrixtt: a t × t term − to − term matrixAccording toMt N∈ ×R∃K: thematrixofeigenvectorsderivedfrom M MtKtK=ID: thematrixofeigenvectorsderivedfrom MtMDtD=IM=K S Dt3-82