物化視圖 的英文怎麼說

中文拼音 [wùhuàshìtú]
物化視圖 英文
materialized view
  • 物 : 名詞1 （東西） thing; matter; object 2 （指自己以外的人或與己相對的環境） other people; the outsi...
  • 視 : Ⅰ動詞1. （看） look at 2. （看待） regard; look upon 3. （考察） inspect; watch Ⅱ名詞（姓氏） a surname
  • 圖 : Ⅰ名詞1 （繪畫表現出的形象; 圖畫） picture; chart; drawing; map 2 （計劃） plan; scheme; attempt 3...
  • 物化 : materialization
  1. Extending database technology : advances in database technology, avignon, france, 1996, pp. 140 - 144. 17 ceri s, widom j. deriving production rules for incremental view maintenance. in proc

    動作a包括兩種情況：第一，物化視圖的語義和數據量增加了第二，物化視圖的語義和數據量減少了。
  2. The word " schema " first appeared in kant ' works at that time, kant attempt to combine the knowledge category with the perceptual object by scheme to find its great influence on knowledge acquisition, but his scheme was priori in the history of modern psychology, the gestalt school was the first one who payed attention to schema at the general theory level, and jean piaget also thought highly of schema, his theory was called schema theory, but this theory neglect the function of society and education, that is to say, in some degree his scheme theory has the incline of biologization

    但其理論忽視社會和教育的作用，因此，其圖式學說存在一定程度的生物化傾向。從心理學史發展的另一條線?經驗主義來看，重視過去經驗的作用，認為圖式具有積極主動加工的特點。現代圖式理論是在吸收了理性主義和經驗主義，又在信息科學、計算機科學的發展以及心理學關于表徵研究的基礎上，於20世紀80年代興起。
  3. Abstract : the restoration of the riparian vegetation disturbed by human activities is one of the hotspots of watershed ecology. through interpreting the images of remote sensing in 1985 and 1999, the basic information of forest resources of lushuihe forest bureau, which is a typical forest area of changbai mountain, was obtained with support of gis. by dividing land covers of lushuihe area into 10 types ( water body, residential land, stump land, farming land, wetland, mature conifer forest, midlife conifer forest, mature broadleaf forest, midlife broadleaf forest, and man - made young forest ) and dividing the riparian zone into four buffers ( in turn, 1000, 2000, 3000, 4000 m away from the river ), the changes of riparian forest resources during 1985 - 1999 were analyzed. the results showed that the deforestation intension has obviously decreased and the whole environment has been evidently improved, but the riparian ecosystem was still flimsy. in buffer 1, 2, 3, the area of midlife conifer forest increased largely, but the areas of other types of land covers all decreased. midlife conifer forest had a comparatively good status in the three buffers. in buffer 4, midlife conifer forest, mature conifer forest, and mature broadleaf forest formed a forest - age rank that is helpful to stabilize the forest ecosystem and exert its functions. area percentage of wetland decreased in buffer 1, buffer 2, and buffer 3, even in buffer 4 in which forest ecosystem rehabilitated comparatively well, so protecting and rehabilitating wetland is a very difficult task

    文摘:本文對兩期遙感圖像進行解譯，並在gis支持下提取露水河林業局主要河流兩岸各緩沖區森林資源信息，經分析得到各類地物在1985年及1999年的變化趨勢.結果表明:在河流沿岸對森林的採伐強度1999年較1985年明顯減小，整體生態環境較1985年有所改善.在緩沖區1 ， 2 ， 3除中齡針葉林大幅度增加外，其它地物類型面積均減少，由此可以看出，在這三個緩沖區內針葉林得到了較好的恢復.在緩沖區4內，中齡針葉林、成熟針葉林、成熟闊葉林形成一個林齡梯隊，有利於森林生態系統的穩定與功能的發揮，十五年間緩沖區4受到的干擾相對較小.濕地數量在四個緩沖區內均有所減少，雖然在緩沖區4內森林生態系統恢復的較好，但濕地面積仍有所減少，說明保護及恢復濕地資源是一件非常艱巨的任務，必須引起高度重視.圖5表2參12
  4. The restoration of the riparian vegetation disturbed by human activities is one of the hotspots of watershed ecology. through interpreting the images of remote sensing in 1985 and 1999, the basic information of forest resources of lushuihe forest bureau, which is a typical forest area of changbai mountain, was obtained with support of gis. by dividing land covers of lushuihe area into 10 types ( water body, residential land, stump land, farming land, wetland, mature conifer forest, midlife conifer forest, mature broadleaf forest, midlife broadleaf forest, and man - made young forest ) and dividing the riparian zone into four buffers ( in turn, 1000, 2000, 3000, 4000 m away from the river ), the changes of riparian forest resources during 1985 - 1999 were analyzed. the results showed that the deforestation intension has obviously decreased and the whole environment has been evidently improved, but the riparian ecosystem was still flimsy. in buffer 1, 2, 3, the area of midlife conifer forest increased largely, but the areas of other types of land covers all decreased. midlife conifer forest had a comparatively good status in the three buffers. in buffer 4, midlife conifer forest, mature conifer forest, and mature broadleaf forest formed a forest - age rank that is helpful to stabilize the forest ecosystem and exert its functions. area percentage of wetland decreased in buffer 1, buffer 2, and buffer 3, even in buffer 4 in which forest ecosystem rehabilitated comparatively well, so protecting and rehabilitating wetland is a very difficult task

    本文對兩期遙感圖像進行解譯，並在gis支持下提取露水河林業局主要河流兩岸各緩沖區森林資源信息，經分析得到各類地物在1985年及1999年的變化趨勢.結果表明:在河流沿岸對森林的採伐強度1999年較1985年明顯減小，整體生態環境較1985年有所改善.在緩沖區1 ， 2 ， 3除中齡針葉林大幅度增加外，其它地物類型面積均減少，由此可以看出，在這三個緩沖區內針葉林得到了較好的恢復.在緩沖區4內，中齡針葉林、成熟針葉林、成熟闊葉林形成一個林齡梯隊，有利於森林生態系統的穩定與功能的發揮，十五年間緩沖區4受到的干擾相對較小.濕地數量在四個緩沖區內均有所減少，雖然在緩沖區4內森林生態系統恢復的較好，但濕地面積仍有所減少，說明保護及恢復濕地資源是一件非常艱巨的任務，必須引起高度重視.圖5表2參12
  5. Sophisticated facilities and laboratories were also opened to participants, for example, faculty of arts electro - acoustic music centre ; the school of communication s new media laboratory, digital imaging centre, animation studio, tv studio ; the faculty of science s biology, chemistry, physics and computer science laboratories ; and the school of chinese medicine s chinese medicine clinic, library and the anatomy, acupuncture, herbal medicine and pathology teaching laboratories

    各學院開放了實驗室和獨特設施予中學生參觀，例如文學院的電聲音樂研究中心、傳理學院的新媒體實驗室、數碼圖像中心、電視錄影室、動畫製作室等，理學院亦開放生物、化學、物理及計算機科學系的實驗室。中醫藥學院則開放了中醫藥診所、中醫藥圖書館、以及解剖、針灸、草藥及病理教學實驗室，並設有示範、健康評估及中醫義診等。
  6. Directly painting textures on top of 3d objects in 3d perspective viewport is a new issue of human - computer interface ( hci ). this paper presents a method to solve this issue. it converts the position information of the texture pixels of texture map into color information ， and then transfers both the coordinates and the color of texture pixels into screen through texture mapping at the same time. only is the color information of texture pixels converted into illumination by calculating the normal and the angle of ray incidence of the screen pixel in the method. the texture coordinates are firstly converted into the color information by generating another texture map ， which is called information map whose pixels ' color represents the coordinates information. and then the corresponding texture coordinates are mapped into screen reference frame by texture mapping and stored into information buffer for later use. so we can obtain the texture coordinates of screen pixels correspondingly by decoding from information buffer. after optimizing ， we can paint textures on top of 3d objects in 3d perspective viewport in real time. the paper also gives some examples and related definitions of using additional information of 2d texture map for 3d graph generating

    針對三維逶視投影視圖中對三維物體表面紋理直接進行噴繪，以獲得復雜紋理圖這一計算機圖形交互技術這一新問題，研究了一種將紋理圖的象素位置信息轉換成彩色信息，然後利用紋理映射將紋理坐標連同該點上的顏色值一起傳遞到與屏幕象素對應的可見點上的方法，其中顏色值依該點處的入射光線方向和表面法向被進一步轉換為光強值，而紋理坐標則被解碼后還原成與該可見點對應的紋理坐標，被存入信息緩沖器中，供以後使用，通過解碼，可根據屏幕點直接得到對應紋理象素點的坐標，經過演算法優化，實現了對三維物體表面紋理的實時噴繪；同時闡述了在三維圖象生成技術中使用附加紋理信息的應用實例以及相關定義
  7. The presented algorithm, however, selects and materializes data in cell level, and, along with further reduced space and update cost, it can ensure a stable query performance

    此外，視圖級別的物化還需要對用戶的查詢模式的先驗知識，而這類知識往往是我們所不具備的。
  8. 3. updating the materialized views and auxiliary relations

    利用更新值對每個輔助視圖和物化視圖進行更新。
  9. 2dcma : an effective maintenance algorithm of materialized views in peer data management systems

    Peer數據管理系統中的一個高效物化視圖維護演算法2dcma
  10. 16 gupta a, jagadish h v, mumick i s. data integration using self - maintainable views. in proc. the 5th int

    條件c是一個物化視圖能夠在一條語義鏈路上能夠從一個peer傳遞到另一個peer 。
  11. A data warehouse stores materialized view over data from one or more sources in order to fast access to integrated data

    為了對一個或多個數據源聚集數據快速查詢，我們通常在數據倉庫中保存物化視圖。
  12. Otherwise, if a view is not selected, all the cells in this view will not be materialized. this strategy results in the unstable query performance

    這樣的物化方式所產生的一個後果就是物化視圖中的數據與非物化視圖中數據在查詢性能上差別很大。
  13. First, the definition of view is extended and the peer view, local view and global view are proposed according to the requirements of applications

    在pdms中連接操作限制在各個局部pdms中，這樣全局物化視圖的維護就轉化為對各相關局部物化視圖的維護。
  14. There are two main factors to influence materialized views in pdmss. one is that schema mappings between peers are changed, and the other is that peers update their data

    在pdms中有兩個主要因素影響物化視圖：第一是peer之間的模式映射發生了改變，第二是有peer更新了它的數據。
  15. In this paper, we use directed - acyclic graph ( dag ) to represent a query processing, then define a cost model and a query efficiency model, and finally put forward an algorithm for materialized views selection

    在考慮空間約束的基礎上，提出一種物化視圖選擇方法，並給出了切實可行的演算法步驟。
  16. In this thesis, first 1 research on the self - maintainability of simple views that only use one operation. then i propose an efficient self - maintainable algorithm based on analysis of binary express of views. the algorithm includes three steps : 1

    本文在介紹自維護演算法之前，先討論了基本視圖的自維護性，然後用二叉表示樹對物化視圖的結構進行了分析，在此基礎上，給出了視圖自維護的演算法： 1
  17. Data warehouses ( dw ) are built by gathering information from distributed information sources ( iss ) and integrating it into one customized repository. data warehousing is used for responding to high level query and analysis ( e. g., decision support, data mining )

    數據倉庫是為響應高層查詢與分析（如決策支持和數據挖掘）而建立的一個數據庫系統，它是實化視圖的集合，實化視圖存儲于分配給數據倉庫的物理空間中，並響應所有對數據倉庫的查詢請求。
  18. Subsequently, software function of the system is batted around, the theory of mdi ( multi - document interface ) of it ' s software system is dissected, and the pcomm32 is introduced. finally, the application programs named for pmacnc of the entire system is developed by vc + + 6. 0, which is consisted of initialization communication interface, manual operation interface, parameter intercalation interface, status messages interface and program compiling interface. eventually, motion control programs are compiled and tested

    具體分析了以ipc pmac為控制核心的機電一體化實驗裝置的系統軟體功能，闡述了機電一體化實驗裝置的系統軟體工作原理與實現機制和機電一體化實驗裝置界面軟體的工作原理和實現機制：多文檔多視圖結構原理、 mdi應用程序框架原理，並用vc + + 6 . 0編寫了整個系統的用戶應用軟體pmacnc ，開發了中物院機制所機電一體化實驗裝置的幾個主要人機界面：初始化通訊模塊界面、手動操作模塊界面、參數設置模塊界面、狀態顯示模塊界面和程序編輯模塊界面。
  19. 18 zhao y, deshpande p, naughton j. an array - based algorithm for simultaneous multidimensional aggregates

    Pmc的部分物化不同於已被廣泛研究的視圖級別的部分物化。
  20. In a traditional algorithm, when a view is selected, all the cells in this view are to be materialized

    也就是說，在data cube中某個視圖的所有數據要麼全部為物化，要麼全部不被物化。
分享友人
分享到 Line

分享到臉書