fundamentals of machine learning for predictive data analytics

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Common distribution of knowledge points for machine learning and data mining

Common distribution of knowledge points for machine learning and data mining Common Distribution (common distribution): Discrete distribution (discrete type distribution): 0-1 distribution (0-1 distribution) Definition: If a random variable x x only takes 0 0 and 1 12 values, and its distribution law is P{X=K}=PK (1−p) 1−k,k=0,1 p\{x=k\}=p^k (1-p) ^{1-k}, k=0

Machine learning on spark--section II: Basic data Structure (II)

(1))) Val Indexrowmatrix = new Indexedrowmatrix (RDD1)//convert Indexedrowmatrix to Blockmatrix, specify the number of rows per block Val Blockmatrix:bloc Kmatrix=indexrowmatrix. Toblockmatrix(2,2)//After the execution of the printed content://index: (0,0) Matrixcontent:2 x 2Cscmatrix//(1,0)20.0//(1,1)30.0Index: (1,1) Matrixcontent:2 x 1Cscmatrix//(0,0)70.0//(1,0)100.0Index: (1,0) Matrixcontent:2 x 2Cscmatrix//(0,0)50.0//(1,0)80.0//(0,1)60.0//(1,1)90.0Index: (0,1) Matrixcontent:2 x 1Cscmatrix//(

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