例句與造句

1. 11th internationalconference on scientific and statistical database management , cleveland , ohio , usa , july , 1999 , pp . 102 - 111 . 16 gao h , li j z . hierarchical data cube for range sumqueries
   理論分析與試驗結(jié)果表明，本文提出的phc以及相關(guān)的并行算法具有很高的性能， phc不僅具有最小的空間代價，而且phc上的并行區(qū)域查詢和動態(tài)更新均可達(dá)到較高的性能加速比。
2. To carry out ir in our country , we must establish the concept of scientific development , sparing no efforts to advocate scientific management in heis ; rely on the government and the society to establish a unified statistical database , realizing the sharing of data resources ; accelerate the cultivation of jr professionals , encouraging most higher education research institutes to switch its function to take jr as its main task
   在我國發(fā)展院校研究，必須樹立科學(xué)發(fā)展觀，在高校中大力倡導(dǎo)科學(xué)管理；依靠國家和社會的力量，建立具有統(tǒng)一統(tǒng)計口徑的數(shù)據(jù)庫，實現(xiàn)數(shù)據(jù)資源共享；加快院校研究人員的培養(yǎng)，促使大多數(shù)高教研究所（室）轉(zhuǎn)變功能，將院校研究作為主要的工作任務(wù)。
3. Scientific and statistical databases ( ssdb ) have following characters , firstly , relation schema is relatively stable , and each attribute has limited candidate values with high redundancy , secondly , new arrival data only append to the end of current data area and do not change the exist data , thirdly , every relation is made up of plenty of attributes , but majority of queries only relative with less attributes and most queries are read - only queries
   科學(xué)與統(tǒng)計數(shù)據(jù)庫( scientificandstatisticaldatabase , ssdb )具有如下特點: ( 1 )關(guān)系的模式穩(wěn)定、屬性值的值域有限、數(shù)據(jù)冗余大; ( 2 )新產(chǎn)生的數(shù)據(jù)只追加到當(dāng)前數(shù)據(jù)末尾而不更新已有內(nèi)容; ( 3 )每個關(guān)系都由大量屬性組成,但大多數(shù)查詢只與少數(shù)幾個屬性相關(guān)且多為只讀操作。
4. For the data with quantitative attribute , several unsupervised discretization methods of continuous features are discussed . three simple boolean discretization methods ( equal width , equal frequency and cluster ) and fuzzy discretization are simulated based on a real population statistical database
   隨后針對數(shù)據(jù)庫中的模擬量屬性，分析了非監(jiān)督定量屬性離散化的幾種方法，在一個統(tǒng)計數(shù)據(jù)庫基礎(chǔ)上仿真研究了分別基于等寬、等頻和聚類的布爾型分段離散化方法和模糊離散化方法。
5. The results of population censusesby - censuses form the corner stone of the system . these benchmark data are taken together with statistical data generated from administrative systems ( such as birth , death and passenger movement records ) and sample surveys ( in particular the continuous general household survey ) to form a population statistical database which serves a multitude of purposes , including amongst which the compilation of population estimates
   這些基準(zhǔn)資料，加上透過其他行政系統(tǒng)（例如出生、死亡及出入境記錄）及抽樣統(tǒng)計調(diào)查（特別是持續(xù)性的綜合住戶統(tǒng)計調(diào)查）所得資料，編制而成的統(tǒng)計數(shù)據(jù)，連結(jié)成一個人口統(tǒng)計數(shù)據(jù)資料庫，數(shù)據(jù)可用于編制人口估計及其他眾多用途。
6. It's difficult to find statistical database in a sentence. 用statistical database造句挺難的