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...Teachers recruitment board post graduate computer instructor grade question paper it is a class of machine learning techniques that make use both labelled and unlabelled examples where models are called semi supervised b active c d unsupervised correct alternative the cosine measure tanimato coefficient used for applications involving sparse numeric data vector asymmetric binary numerical qualitative if itemsets x y frequent but rarely occur together then said to be negatively correlated indicated as sup which method quantizes object space into finite number cells hierarchical grid...