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statistical databases中文什么意思

發(fā)音:   用"statistical databases"造句

例句與用法

  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。

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