數據描述語言 的英文怎麼說

中文拼音 [shǔjùmiáoshùyǔyán]
數據描述語言 英文
data description language ddl
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 據 : 據Ⅰ動詞1 （占據） occupy; seize 2 （憑借; 依靠） rely on; depend on Ⅱ介詞（按照; 依據） according...
  • 描 : 動詞1. （照底樣畫） copy; depict; trace 2. （在原來顏色淡或需改正之處重復塗抹） retouch; touch up
  • 述 : Ⅰ動詞（陳說; 敘述） state; relate; narrate Ⅱ名詞（姓氏） a surname
  • 語 : 語動詞[書面語] （告訴） tell; inform
  • 言 : Ⅰ名詞1. （話） speech; word 2. （漢語的一個字） character; word 3. （姓氏） a surname Ⅱ動詞（說） say; talk; speak
  • 數據 : data; record; information
  • 描述 : describe; represent
  • 語言 : language
  1. We first present a number of desiderata for an xml - based query language, and based on this criterion, we introduce the syntax of a simple core ian - guage for semistructured data and then describe four extensions that have resulted in working prototypes. second, we present the algorithm for computing the result of a regular expression on data graph with cycles, the first - order interpretation of querying language for semistructured data, and explore structural recursion and bisimulation in semistructured data and propose an efficient and systematic way to computing a bisimulation between the two graphs. we also proposed and implemented a web querying system with database features

    基於這些準則，對一個簡單的半結構數據查詢核心語言的語法提出了兩方面擴充；給出了計算數據圖中正規表達式的演算法；對半結構數據查詢語言的一階邏輯描述、結構遞歸和數據圖的雙態模擬（ bisimulation ）等問題進行了研究，提出了一種判定數據圖的bisimulation演算法；在xml數據查詢語言研究的基礎上，設計並實現了一種具有數據庫查詢特性的web查詢系統原型。
  2. Our research studies the principles and methods when use postscript language to describe a page, uses monomial comparison to analyze how text, graphics and images are described. specially, the procedures describing image are analyzed in detail

    論文從實用的角度研究了postscript頁面描述語言的描述原理和方法，使用定項比較法解讀postscript文件中文字、圖形和圖像等元素的表示方法，重點剖析了描述圖像屬性參數和數據的各個過程。
  3. Digital image processing consume a large amount of memory and time commonly. basing on the advantage of fpga, the paper design harware module by hdl ( hardware language ), i. e., some function is achieved by les ( logic element ) of the fpga. the real - time of digital image processing is achieved by this. the sample and display of digital image is the important part. so, the paper mainly design the sample and desplay module. the sample card is designed and it ’ s word mode is configured according china ’ s cvbs ( composite video bar signal ). for acquiring the image and storing it correctly to sram, the paper design the sample - control module. the sample module can work correctly using least time. the reliability and real - time achieve the reference. according the vga principle and scheduling of the ths8134, the paper design a vga - control module by hdl. firstly, the control signal is synthesized secondly, the horirontal and vertical synchronization signals is synthesized according to the vga interface standard

    圖像處理的特點是處理的數據量大，處理非常耗時，為實現數字圖像的實時處理，本文研究了在fpga上用硬體描述語言實現功能模塊的方法，通過功能模塊的硬體化，解決了視頻圖像處理的速度問題。圖像數據的正確採集和顯示輸出是其中的兩個重要的模塊，因此，本文主要完成了圖像數據的採集和顯示輸出的設計。本文設計了採集卡，並要對其工作模式進行了配置和編寫了採集控制模塊，在採集控制模塊的控制下，將數字圖像數據正確無誤的存儲到了sram中。
  4. At last the algorithm of ddmf is achieved by the investigation tool of altera company ? quartus ii and the vhdl language, and its ip core is also achieved which is used not only in the satellite navigation position system, but also in the long pn code dsss system. ddmf investigated in the dissertation gives a good way to design the rapid pn code acquisition in the beidou project, and the technology has the definite theory and practice significance

    此外還應用altera公司的最新的fpga開發工具quartusiiv5 . 1 ，採用了國際標準的硬體描述語言? vhdl語言，對數字差動匹配濾波器和傳統匹配濾波器演算法予以實現，開發了該演算法的軟ip核，可以對所應用的擴頻碼長度， a / d采樣后的數據量化階數，所用擴頻碼等可進行隨意改寫。
  5. A data visual description language based on xml data called dvdl ( data visualization description language ) is given

    定義了一個基於xml的數據可視化描述語言
  6. 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。
  7. At last, this thesis figures out an event - based method of air threat assessment through the definitions of the events, the modeling accompanied with xml description of the model, the introduction of the functional architecture model of event correlation, the type of event correlation and the expressions of the theory of this technique, the event deleting and contracting on the data facet, the correlation between the events in causality by bayesian network and the probability reasoning, exemplifying and calculating of bayesian network employed in the construction of threat assessment model of air battle

    最後提出了一種基於事件的空戰威脅估計方法。對事件進行了定義、建模並用xml語言進行了數據描述;介紹了事件關聯功能結構模型;介紹了事件關聯類型及知識表達方式，從數據層進行了事件清理和壓縮，使用貝葉斯網路對因果事件進行關聯，建立了空戰威脅估計貝葉斯網模型、進行了貝葉斯概率推理及算例分析。
  8. Main characteristics include object - oriented language core, interfaces between vera core and hdl implemented by interface definition and port variables, complex concurrency control implemented by programming construction ( fork / join ) and data structures ( event, mailbox and semaphore, etc ). all these help vera successfully model hardware properties

    主要的特點是：面向對象的語言內核；通過界面定義和埠變量等實現了vera語言內核和硬體描述語言的介面；通過編程結構fork join和數據結構（事件、郵箱和旗語）來實現復雜的并行控制，實現對硬體特點的模擬。
  9. In this paper, using a top - down design scheme, the risc mcu ip core is divided into two parts : data path and control path. all the modules in the two parts are described by verilog hdl, a kind of hardware description language. the simulation and synthesis of the whole work are finished successfully with eda tools

    本文對pic16c6x單片機系統結構、指令系統和系統時序進行了分析，並且在此基礎上對精簡指令集mcuip核進行頂層功能和結構的定義與劃分，建立了一個可行有效的riscmcuip核模型本文將mcuip核劃分為數據通道與控制通道兩部分，採用asic設計中的高層次設計方法，使用硬體描述語言veriloghdl對這兩部分的各功能模塊進行了設計描述；利用多種eda工具對整個系統進行了模擬驗證與綜合。
  10. As a result, this design accomplishs the function of circuit, which not only can satisfy the high speed image data transmission of large screen system and improve the performance of circuit, but also increase the flexibility of circuit design. in the design, it is possible to act hardware description language procedure according to the practical application demand, instead of revising hardware design of the circuit, which reduce the design cycle and the cost

    所以，本課題運用可編程邏輯器件來完成電路功能，不僅能夠滿足大屏幕系統高速圖像數據傳輸對速度的要求，改善了電路性能，而且增加了電路設計的靈活性，設計中可以根據實際應用的需求靈活修改相應硬體描述語言程序，而不需要修改電路硬體設計，縮短了設計周期，降低了成本。
  11. The methods of adopting fpga to realize the function of counter, and adopting verilog hdl hardware description language to design every function modules, not only makes the whole design more compact and stable, but also make the alteration of the circuit ’ function merely need to alter the software according to the practical task requires, and needn ’ t alter the hardware connection of the circuit

    在計數器功能的實現上採用fpga （ fieldprogrammablegatearray ） ，利用veriloghdl （ hardwaredescriptionlanguage ）語言編寫了各個功能模塊，不僅使整個設計更加緊湊、穩定且可靠，而且可以根據實際的任務要求，在無需改變硬體電路板的情況下，通過修改硬體描述語言程序，即可修改電路功能。
  12. It is rich, clear, extensible and self - description. all the advantages make it the best candidate for representing data model

    Xml的充足性、條理性、可擴展性和自描述性成為其作為數據模型描述語言的優勢。
  13. Furthermore this system uses snort rule language and fuzzy reasoning in the system. consequently, this system has low false alarm rate as well as low miss alarm rate. all these characters make this instrusion detection expert system have much more protecting capacity

    此外，本系統將模糊推理和snort規則描述語言用於對入侵特徵的分析與識別，構建起基於誤用和基於異常相結合的入侵檢測系統，使系統的誤報率漏報率降低，而且數據分析更據實時性。
  14. 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。
  15. Besides the advanced manufacturing technology and theory, a series of correlative technologies are required to the implement of networked manufacturing, especially the technologies of distributed computing, information integration and artificial intelligent etc. aiming at their limitations, the paper reconstructed the key supporting technologies employing the last network technologies and protocols, and established a new architecture of networked manufacturing. finally, the demonstrational researches are conducted with " flexible design and manufacturing system of key parts in large - scale antenna " as prototype. the distributed computing platform available of networked manufacturing is constructed with the distributed object technologies such as corba, dcom, rm1 etc, but those rpc modules bring obstacles to the development of global manufacturing due to their limitations

    網路化製造系統是個分佈、異構、鬆散耦合的智能系統，除了先進製造技術與理念本身，網路化製造的具體實現與實施還需要一系列相關技術的支撐，特別是分散式計算、製造信息集成、人工智慧等，論文正是針對當前網路化製造中上述關鍵支撐技術的不足與局限，運用下一代internet核心規范webservices及其相關技術如xml 、 soap 、 wsdl 、 uddi等，提出了面向全球的網路化製造全新分散式計算解決方案（ global - orienteddistributedcomputing ， godc ） ；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；同時運用webservices 、 xml等先進技術與規范對網路化製造的multi - agent模型、表示、通訊、調度等進行了研究與重構；最後，以「大型天線關鍵零件網路化製造」為原型進行了應用研究。
  16. Data description language ddl

    數據描述語言
  17. Space data and information transfer systems - data description language - east specification

    航天數據和信息傳送系統.數據描述語言. east規范
  18. It can be used as a language for defining data descriptive languages, such as markup grammars or vocabularies and interchange formats and messaging protocols

    它可以作為定義數據描述語言的語言，例如標記語法或詞匯、交換格式和通訊協議。
  19. As the development of the internet and the invention of the xml, now we always use xml to dexcribe information and transfor data, thus xml is a text - based markup language that is fast becoming the standard for data interchange on the web

    隨著internet的發展和xml的出現，通過xml來表達知識、傳遞數據已經成為網路數據傳輸的基本思想， xml也成為網路上通用的數據描述語言。
  20. 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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