簇索引 的英文怎麼說
中文拼音 [cùsuǒyǐn]
簇索引
英文
clustered index- 簇 : Ⅰ動詞[書面語] (聚集; 簇擁) crowd together; form a cluster; pile up Ⅱ名詞(聚集成的團或堆) clus...
- 索 : Ⅰ名詞1 (大繩子; 大鏈子) a large rope 2 (姓氏) a surname Ⅱ動詞1 (搜尋; 尋找) search 2 (要; ...
- 引 : Ⅰ動詞1 (牽引; 拉) draw; stretch 2 (引導) lead; guide 3 (離開) leave 4 (伸著) stretch 5 (...
- 索引 : index; indexing; key; repertory; subscript; concordance
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In vsam, a collection of items used to sequence and locate one or more data records in a base cluster. each alternate index record contains an alternate key value and one or more pointers. when the alternate index supports a key sequenced data set, each data record ' s prime key value is the pointer. when the alternate index supports an entry sequenced data set, the data record ' s rba value is the pointer
在虛擬存儲存取方法( vsam )中,用於定序和定位基簇中的一個或多個數據記錄的項的匯集.每個備用索引記錄包含一個備用關鍵字的值和一個或多個指針.當該備用索引支持某個關鍵字順序數據集時,每個數據記錄的主關鍵字值就是這種指針.當該備用索引支持某個輸入順序數據集時,該數據記錄的rba (相對位元組地址)值就是這種指針Invsam, a named, logical entity providing access to the records of a base cluster either directly or through an alternate index
在虛擬存儲存取方法( vsam )中,提供對一個基簇中的記錄進行直接存取或是通過輔助索引存取的一個命名邏輯實體。The index on the cluster key. each cluster key must have an index before data can be entered into the cluster
聚簇索引:建在聚簇鍵上的索引。在數據存入聚簇表之前,聚簇鍵必要建立索引。The common column in the set of tables built into a cluster. the cluster key must be indexed
一組聚簇表的共同的列。聚簇鍵必需要有索引。A group of contiguous data blocks allocated for a table, index, or cluster. extents are added dynamically as needed
范圍:分配給表,索引或者聚簇的一組連續的數據塊。根據需求動態的增加「范圍」 。In the fourth european conference on principles and practice of knowledge discovery in databases, france, 2000, pp. 424 - 431. 3 d d lewis. naive bayes at forty : the independence assumption in information retrieval
在非監督環境下,概念索引concept index , ci尋找相似文本簇,並把文本簇的中心作為低維空間的坐標來構建低維數據空間。The conceptual model of database is illustrated with e - r graph. after that, logical design and physical design of database are partly accomplished, and some designing principles of them are analyzed, such as external schema, cluster and index design and data type choosing
在此基礎上使用e - r數據模型描述了這些信息內容,實現了數據庫的概念設計,並部分實現了數據庫的邏輯設計和物理設計,分析了資源配置系統數據庫邏輯和物理設計的原則,如外模式、簇集、索引設計以及數據類型的選擇等。A text classifier is put between the retrieval interface and retrieving engine. it automatically assorts the retrieval results on - line to divide them to classes of specific topics. so it is convenient for users to find the matching documents to their inquiry
本文提出在搜索引擎的用戶介面與檢索器之間接入文本分類器,由它對檢索結果進行聯機分類,將其劃分為若干個具有明確主題的簇,大大方便了用戶查找跟查詢要求相關的文檔。分享友人