commercial arithmetic 中文意思是什麼

commercial arithmetic 解釋
商業算術
  • commercial : adj 1 貿易的,商業上的;營業性的。2 〈美國〉(能)大量生產的;營利(性質)的;面向市場的;〈美國...
  • arithmetic : n. 1. 算術,演算法;計算。2. 算術書。
  1. Firstly, it presents the storing arithmetic based on the mapping policy between xml data modal and object - oriented modal. reference to the arithmetic of extracting object - oriented database schemas from xml dtds using inheritance and other commercial tools for xml storing, it improves mapping policy from xml to object, which optimizes the new semantic classes, what ' s more, it present object clustering policy to resolve the uncertainty of xml schema and the complexity of information intergration, which simultaneously focuses on the semanteme and structure of new object classes. on the other hand, it presents method to realize exchanging from object to xml

    本文研究構造基於xml信息集成系統結構的面向對象數據庫包裝器,提出面向對象數據庫包裝器的系統結構;根據該結構提出xml的數據模式與面向對象數據庫對象數據模式的映射策略及相互存儲轉化演算法,一方面我們借鑒基於dtd模式的繼承對象映射提取演算法及各種商業工具,提出dtd簡化演算法和基於dtd簡化結構的對象圖映射演算法,優化了生成的對象類、提高了對象類的語義表達能力,也改進了對象映射提取策略;同時採用模糊聚類策略,提出對象聚類處理演算法,改善了xml語義定義的隨意性給對象類提取及信息集成帶來的復雜性;另一方面本文提出對象到xml的轉化演算法,採用系統自動定義對象到xml的轉化方法實現對象到xml的轉化處理。
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