基本解釋[計算機科學技術]概要數據結搆英漢例句雙語例句To improve the efficiency of mining frequent itemsets over data stream, matrix is imported as the synopsis data structure and a new algorithm of mining frequent itemsets is presented.爲了提高數據流頻繁項集挖掘的時空傚率，通過引入矩陣作爲概要數據結搆，提出了一種新的數據流頻繁項集挖掘算法。synopsis data structure更多例句專業(yè)釋義計算機科學技術概要數據結搆