A.官方統(tǒng)計(jì)數(shù)據(jù)B.社交媒體數(shù)據(jù)C.企業(yè)內(nèi)部數(shù)據(jù)D.用戶生成數(shù)據(jù)
A.K-MeansB.Apriori 算法C.決策樹D.主成分分析
A.數(shù)據(jù)清洗B.數(shù)據(jù)集成C.數(shù)據(jù)變換D.數(shù)據(jù)歸一化