schema description language 中文意思是什麼

schema description language 解釋
模式描述語言骨架
  • schema : n （pl schemata ）1 圖解；圖表；略圖。2 摘要，一覽；大要，大意；綱要，要略。3 【邏輯學】（三段論...
  • description : n. 1. 記述，敘述，描寫；記載。2. 敘事文；（物品）說明書；相貌說明書。3. 種類。4. 作圖；繪制。
  • language : n 1 語言；（某民族，某國的）國語；語調，措詞。2 （談話者或作者所使用的）言語，語風，文風，文體。3...
  1. The key to the fft algorithm is the design of butterfly computation and that of the address logic. the whole schema is designed in the top - down design flow and described in the vhsic hardware description language ( vhdl ), basing on these, we do our research on reconfigurable technology. the result indicates that the data processing ability of reconfigurable system improved greatly

    結果表明，可重構系統在數據處理能力方面比以往的系統有了很大的提高，本設計實現的fft重構處理器可工作於60mhz下，完成一個16點fft需要132個主時鐘周期，完成32點fft需要324個主時鐘周期，而且具有一定可重構性，可以方便地將其運算點數進行擴展，或將其他的圖像處理演算法在實時處理系統中實現。
  2. Aiming at this problem, the main research issues and achievements in this paper are as follows : bi - directional data transformation between rdb and xml with semantic constraints preserved for most of existing researches on static data transformation between xml and rdb, dtd is taken as the schema description language for xml, and the semantic constraints are often lost during the transformation process. to overcome these disadvantages, the author adopts xml - schema, a standard schema description language proposed by w3c to replace dtd, as the description method owing to its more powerful functions than dtd, and of course with the syntax much more complicated. after analyzing the constraints characteristics in both xml - schema and relational schema, a semantic constraints - preserved algorithm is proposed which can realize the bi - directional schema mapping between rdb and xml through a formalized description of xml based on regular tree and a general expression for relational schema based on direct graph approach

    保留語義約束的xml與rdb雙向靜態數據轉換技術現有研究大多採用dtd （ documenttypedefinition ，文檔類型定義）作為xml的模式描述語言，並且在模式映射過程中丟失語義約束信息，本文分析了xml - schema （ xml - schema採用與dtd完全不同的語法，數據描述能力更強同時也更為復雜，已被w3c確定為替代dtd作為xml模式描述語言的標準）及關系模式的語義約束特徵，通過基於正則樹的xml形式化描述方法以及基於有向圖的一般關系模式表示方法的研究，建立保留語義約束的xml - schema與關系模式的雙向模式映射演算法，實現了xml與rdb的雙向數據轉換，較好地解決了xml與rdb在靜態數據轉換層面的數據集成問題，可有效滿足企業大量rdb數據面向xml的發布以及與日俱增的xml數據存入rdb的應用需求。
  3. Virtual ontology data source shields the detail of low - leveldatasource, andprovides aconsistentaccessinterfacefortopperusers. wediscussedthemethodof transforming relation database to virtual ontology data source ( which is also called databasedeep annotation ). we designed the database schema description language and mapping rulesdescriptionlanguage, andgavearesolventforrelationmodeling. at last, we bring out a framework of general natural language interface, and implement adatabasenaturallanguageinterface. makinguseofaspecificexample, wemadeanevaluationofthissystem

    我們具體討論了從關系數據庫系統到虛擬本體數據源的轉換（也稱為數據庫深度註解） ，定義了關系數據庫的結構知識描述語言和通用的映射規則描述語言，給出了多元關系建模的解決方案。
  4. A web service description language wsdl file typically describes a class in xml schema language as an

    Web服務描述語言（ wsdl ）文件通常以xml架構語言將類描述為由各種基元
  5. Aiming at the shortcomings of manufacturing information description method - step / express while applied to internet, the paper constructed the product data markup language based - xml - schema which has the advantage of the unique expression and well - structure, and gave the mapping rules from express to xml and step part21 to xml. furthermore, the information integration solution of networked manufacturing based on xml / step / pdm is researched. multi - agent of distributed artificial intelligence is an effective approach to depict the characteristics of networked manufacturing system

    Step是製造領域的產品信息描述規范，而xml是面向網際網路的數據交換標準，因而論文利用xml - schema無二義表達及結構性好等優點，使之與step優勢互補，構造了基於xml - schema的製造產品數據描述語言（ pdmlbased - xml - schema ） ，給出了express xml及steppart21 xml的映射規則，並對基於xml step pdm網路化製造信息集成方案進行了研究。
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