抽樣的優點 的英文怎麼說

中文拼音 [chōuyàngdeyōudiǎn]
抽樣的優點 英文
advantage of sampling
  • 抽 : 動詞1 （把夾在中間的東西拉出; 提取） take out （from in between） 2 （從全部里取出一部分; 騰出） ...
  • 樣 : Ⅰ名詞1. （形狀） appearance; shape 2. （樣品） sample; model; pattern Ⅱ量詞（表示事物的種類） kind; type
  • 的 : 4次方是 The fourth power of 2 is direction
  • 點 : Ⅰ名詞1 （液體的小滴） drop （of liquid） 2 （細小的痕跡） spot; dot; speck 3 （漢字的筆畫「、」）...
  • 抽樣 : [統計] sample; sampling; specimen; samples draw
  1. In this paper, taking one of the special processes - chromic acids anodizing for example, such administration methods as the key points control and the quality performance administration system for surface treatment process have been setup by process analysis and key points seeking. as for the complicacy of the quality control on metallurgical special processes and the huge statistic data, the quality information system of surface treatment have been established on the bases of computer database. this paper brings out the systematic evaluation way to setup reception test items by taking the reception test results as evaluation basis and sampling statistics as rules

    本文以鉻酸陽極氧化表面處理工藝為研究對象，通過工藝技術分析、尋找關鍵特性、建立對關鍵特性的控制等工作，研究建立了表面處理工藝動態質量管理系統；針對冶金特種工藝質量控制的復雜性及統計數據量大等特點，建立了以計算機數據庫管理為基礎的表面處理信息及處理系統；為解決冶金特種工藝原材料入廠復驗任務重的困難，建立了以原材料入廠復驗的試驗結果為評價基礎，以抽樣統計方法為依據的原材料入廠復驗項目優選系統等。
  2. The following algorithms have been proposed and tested in the thesis : 1 frequency selective fading : combine the isomorphism between the input space and the output space and propose a new approach to blind equalization of the channel. compared with conventional methods, the new approach offers lower computational complexity, better performance, and more robust against the over - determination of the system order ; 2 time selective fading : a new approach to the equalization of time selective channel based on the zero - forced equalizer is proposed which is more simple in its structure of algorithm ; 3 time - varying channel : using the instantaneous mean value changes of the output signal to extract the information of channel variations and model it using ar model, kalman filter is then employed to track channel variations, it bears faster ability in tracking the variation of tv channels ; based on the isomorphism between the inputs and the outputs and some of the approaches using in mimo system, a new algorithm of equalization of simo time - varying channel is proposed, which also share the merits of being robust against the over - determination of the system order ; model the time - varying channel using the multi - resolution decomposition wavelets, and then a blind identification method based " on the model is proposed ; at last, a new model for equalization and identification of mimo system is proposed

    主要工作在以下幾個方面： 1 、針對頻率選擇性衰落通道：結合輸入輸出空間同構關系提出一種新的頻率選擇性通道均衡方法，與傳統方法相比，該方法計算量更小，收斂速度更快，性能更優，且對系統階次的過確定表現穩健，具有實際均衡應用價值； 2 、針對時間選擇性衰落通道：提出一種基於迫零均衡的時間選擇性通道均衡方法，演算法結構簡單； 3 、針對時變色散通道：利用瞬態均值曲線提取通道時變信息，對之ar建模，利用卡爾曼濾波器跟蹤時變通道抽頭變化，可以快速跟蹤通道變化；基於輸入輸出空間之間的同構關系以及多輸入多輸出系統的處理方法，提出了新的單輸入多輸出色散時變通道均衡與識別演算法，同樣具有對通道階次過確定保持穩健的優點；結合小波多解析度分析提出一種基於小波模型的通道盲識別演算法；研究時變的多輸入多輸出系統的盲均衡與盲反卷積問題，給出一種時變系統處理模型。
  3. The following merits can gain by using the clustering method : a. the sampling quantity can be reduced by using the method to test the segmentation of the large - scale corpus ; b. the testing precision can be improved and the variance of population can be estimated more exactly

    與已有的簡單隨機抽樣方法相比，本文提出的方法在大規模語料庫分詞質量評價時，有如下優點； a通過聚類得到語料庫抽樣樣本分詞正確率的分層知識，進而在檢驗中運用分層抽樣帶來的增益減少檢驗的費用： b
  4. Abstract : to settle the numbers of groups, the moth and features of group sampling are analysed, and its estimator is goven. then using cauchyschwartz unequility, it seeks the best apportion with finite cost

    文摘:為了確定分類抽樣的各類單位數，分析了分類抽樣的抽取方法和特點，同時給出其簡單估計，然後利用柯西-施瓦茨不等式推導出在給定調查費用情況下的最優分配
  5. Secondly, the content analysis developed by manifesto research group ( mrg ) and a variety of obtrusive methods of measurements are introduced, including what they are and their advantages and disadvantages

    接著分別討?以政?研究小組的內容分析法為主的非介入式測? ，與專家調查、候選人調查、抽樣調查等三種介入式測?的方法及其優缺點。
  6. This work is contributed to the design and the construction of the traditional expert system part of the mixed system. firstly, we deal with sample data provided by a bank in fujian and abstract financial ratios by statistical methods ; secondly, we construct knowledge base according to area - knowledge of credit assessment, and design a priority - based forward - inference engine and a fact - based automatic explaining mechanism ; thirdly, we adopt object - oriented technology to analysis the system and construct object model and functional model of expert system ; finally, by using access database to construct system knowledge base, and c + + builder software to program, we develop a credit assessment prototype system based on mix - expert system

    以某銀行提供的企業樣本數據為基礎，在完成對樣本數據處理、抽取財務比率等基本工作后，根據信用評價領域知識的特點構建了系統的知識庫，設計了基於優先級的正向推理機制與基於事實的自動解釋機制，然後採用面向對象技術對系統進行分析，建立專家系統的對象模型和功能模型，在此基礎上，採用access數據庫設計系統的知識庫，採用c + + builder開發軟體實現了基於混合型專家系統的可視化信用評價系統原型。
分享友人
分享到 Line

分享到臉書