decomposition query 中文意思是什麼

decomposition query 解釋
分解查詢
  • decomposition : n. 1. 分解，分析，溶解，還原（作用）。2. 腐朽，解體。
  • query : n 1 質問；詢問；疑問，懷疑。2 敢問，請問〈在疑問句前單獨使用〉。3 【印刷】（打在原稿或校樣上的）...
  1. Fractal coding has been proved useful for image compression. it is also proved effective for content - based image retrieval. in the paper, we present a block - constrained fractal coding scheme and a matching strategy for content - based image retrieval. in this coding scheme, an image is partitioned into non - overlap blocks of a size close to that of a query iconic image. fractal codes are generated for each block independently. in the similarity measure of fractal codes, an improved nona - tree decomposition scheme is adopted to avoid matching the fractal codes globally in order to reduce computational complexity. our experimental results show that our coding scheme and the matching strategy we adopted is useful for image retrieval, and is compared favorably with other two methods tested in terms of storage usage and computing time

    分形編碼在圖像壓縮方面取得了很好的效果，同時，分形編碼也能夠用於基於內容的圖像檢索.本文提出了一種基於塊限制的分形編碼演算法和匹配策略，並將它們用於圖像檢索.在我們編碼演算法中，圖像會被預先分成互相不重疊的子圖像塊，然後對這些子圖像進行獨立地分形編碼，從而獲得整幅圖像的分形碼.該編碼演算法能夠在很大程度上減少編碼時間.在進行圖像間相似性的匹配時，我們採用改進的基於九叉樹的分配策略，從而避免全局地進行分形碼的匹配，減少了計算量.實驗結果說明，我們的編碼演算法和匹配策略能夠比較有效地應用於基於內容的圖像檢索，在計算時間和存儲時間上都優于實驗中其它兩種方法
  2. Sometimes the huge relevant information in those databases should be managed unitedly, so, it is getting more and more critical to develop applications for building systems that combine relevant data from database sources and present them in a form which is comprehensible for users beginning with the basic theory of module and distributed multidatabase, this paper discusses the technologies about the ejb, corba component used in the oracle8i / 9i database, the schema integration and query decomposition, schema integration and query decomposition are key segment of this thesis

    某些情況下，這些數據庫中的相關信息需要統一的進行管理，這就迫切需要開發出相應的應用系統來集成多數據庫中的相關數據並使用戶能夠充分的理解。本文首先從組件和分散式多數據庫的基本原理出發，詳細討論了模式集成和查詢分解技術與ejb 、 corba等組件技術在oracle8i 9i數據庫中的應用。數據模式集成和查詢分解是本文探討的重點，也是分散式多數據庫的核心內容。
  3. Many mature technologies on this level have been brought out, such as the relational algebra law, the improved logical query plan, the cost estimation of operation, the selective plan based on cost and order of joint, etc. although many methods have been tried out, no remarkable result or noteworthy technology has come to reality because of complexity of data decomposition and network effects

    例如，從物理查詢計劃的底層磁盤輸入輸出到語法分析階段的語法分析樹、用於改進查詢計劃的代數定律、邏輯查詢計劃的改進，以及操作代價的估計、基於代價的計劃和連接順序的選擇等全過程，都進行了不懈的努力。在這方面的研究已經非常成熟。
  4. They are kernel knowledge of distributed multidatabase too0 then, based on a reasonable classified frame of schema collision, the paper probes into the strategies realizing schema integration and query decomposition using the good " low coupling, high cohesion " characteristics of component ; and then, a improved model of federal database architecture is designed exerting the virtue of independence and assembly of component <, at last, i had completed the work of developing a demo for the integration of audit information systems with the helps of others, which proved that the improved model of federal database architecture is practicalo

    我在提出一個合理的模式沖突分類框架的基礎上，探討了如何運用組件技術的低耦合、高內聚的良好特性來實現數據模式集成和查詢分解的策略；同時，運用組件技術的獨立性和可裝配的優點，設計了一個改進的聯邦數據庫體系結構模型。最後，在上述理論的指導下，本人與協作者完成了湖南省審計廳信息集成原型系統的設計和開發，總體上證實了改進后聯邦數據庫體系結構模型的可行性。
  5. Semantic analyse of data request, query decomposition and conversion rules are introduced in detail

    詳細介紹了數據交換引擎中數據請求的語義分析、查詢分解、構建轉換規則等功能模塊的作用及工作原理。
  6. Chapter 3 presents a method to represent schema architecture and schema mapping, prescribe an algorithm for decomposition tree. chapter 4 describes the implementation framework of multidatabase query processing, the implementation algorithm of query decomposition, approaches of query in the cmdatabase will be addressed

    第三章提出了多數據庫系統cmdatabase的模式結構及模式映射方法，定義了用於多數據庫查詢處理的樹生成演算法第四章描述了cmdatabase的全局查詢處理的查詢分解演算法。
  7. In this thesis, schema integration global query decomposition and optimization and global transactions manipulation in multidatabase systems are discoursed elaboratly. the algorithm which clears up one - to - one entity conflict and query process optimization algorithm are presented and analysiz. ed. the assurance strategy of transaction atomity and global deadlock resolution algorithm are also discussed in this thesis. at end of this thesis, based on domestic experiences and overseas experiences, a new multidatabase system model is presented by combining multidatabase system and corba technology, and security management mechanism is introduced in this model

    本文對多數據庫系統中模式集成、全局查詢的分解和優化以及全局事務的處理等問題進行了詳細而深入的論述，給出了一對一實體沖突的消解演算法和查詢處理優化演算法，並對這些演算法進行了分析；同時還論述了事務原子性的保證策略和全局死鎖的處理演算法。最後，本文在借鑒國內外經驗的基礎上，把通用對象請求代理結構技術與多數據庫系統結合起來，提出了一個新的多數據庫系統模型，在該模型中引入了安全管理機制。
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