statistic error 中文意思是什麼
statistic error
解釋
統計誤差-
An isolated point " s statistic excluding method is proposed in this paper to eliminate crassitude error in clouding data, which include plenty of oddity data. the method based on the distance between two neighbour points can eliminate the data beyond normal distribution. a error limitation of angle and chordal highness method is used to filtrate clouding point
針對大量含奇異點的數據點雲，本文提出了剔除粗大誤差的孤立點統計排異法，該方法根據對相鄰點距離的統計，剔除在正態分佈以外的點；對大量數據的精減，利用角度和弦高的最大允許偏差法進行點雲精減。 -
In order to combine the study of the ds - ss communication system ’ s availably jamming, the whole ds - ss communication system is modeled and simulated, including the modulation of the ds - ss signal, channel transmission, synchronal demodulation of signal and statistic of the bit error rate ( ber )
為結合直擴通信系統的有效干擾研究工作，建立了直擴系統從信號的調制產生，通道傳輸、信號同步解擴解調和誤碼率統計的全過程模擬系統。 -
Compared with the classical bp algorithm, robust adaptive bp algorithm possesses some advantages as following : ( 1 ) increasing the accuracy of the network training by means of using both the relative and absolute residual to adjust the weight values ; ( 2 ) improve the robustness and the network convergence rate through combining with the robust statistic technique by way of judging the values of the samples " relative residual to establish the energy function so that can suppress the effect on network training because of the samples with high noise disturbances ; ( 3 ) prevent entrapping into the local minima area and obtain the global optimal result owing to setting the learning rate to be the function of the errors and the error gradients when network is trained. the learning rate of the weights update change with the error values of the network adaptively so that can easily get rid of the disadvantage of the classical bp algorithm that is liable to entrap into the local minima areas
與基本bp演算法相比，本文提出的魯棒自適應bp演算法具有以下優點： （ 1 ）與魯棒統計技術相結合，通過訓練樣本相對偏差的大小，確定不同訓練樣本對能量函數的貢獻，來抑制含高噪聲干擾樣本對網路訓練的不良影響，從而增強訓練的魯棒性，提高網路訓練的收斂速度； （ 2 ）採用相對偏差和絕對偏差兩種偏差形式對權值進行調整，提高了網路的訓練精度； （ 3 ）在採用梯度下降演算法對權值進行調整的基礎上，通過將學習速率設為訓練誤差及誤差梯度的特殊函數，使學習速率依賴于網路訓練時誤差瞬時的變化而自適應的改變，從而可以克服基本bp演算法容易陷入局部極小區域的弊端，使訓練過程能夠很快的「跳出」局部極小區域而達到全局最優。 -
In the second part, we adopt a few typical error analysis methods, primarily including the relativity analysis and the regression analysis, to analyses the relative error and absolute error of the time error, spatial data error and statistic data error of the raw input data in the model. then, we take each influence factors in the model into the relativity analysis and the regression analysis. finally, we synthesize the results of the above error analysis to figure out the theoretic accuracy of that model as 87 %
第二部分主要是採用幾種典型的誤差分析方法，主要包括相關性分析和回歸分析，對模型的原始輸入數據的時間誤差、空間誤差和統計數據誤差進行了相對誤差和絕對誤差的分析，然後又對模型中各影響因子進行了相關分析和回歸分析，最後綜合以上誤差分析的結果得出該模型的理論精度為87 。 -
Secondly, we bring statistic coding, prediction coding, transform coding and analysis & synthesis coding into radar area. according to the properties of radar data, we take 4 methods, which are huffman coding ; prediction error model and lzw coding ; fft, uniform quantization in each frequency bank and huffman coding ; wavelet transform, uniform quantization in each frequency bank and lzw coding, to compress the genuine ground clutter radar data and give the corresponding results
根據雷達回波的特性，分別採用了huffman編碼法，預測誤差模型和lzw編碼法， fft 、分頻帶均勻量化和huffman編碼的壓縮演算法，小波變換、子帶均勻量化和lzw編碼的壓縮演算法等四種演算法，並給出了用這些演算法對真實的地雜波雷達回波數據進行壓縮的實驗結果。 -
Based on the statistic analysis of the natural language and inter - language data, we have given an error - analysis of the overseas students ' usages and the general learning stages as well as the usage frequency of the native speakers
在此基礎上，對自然語料和中介語語料進行了統計和分析，對留學生的正誤使用情況做了系統的分析和歸納，並統計出留學生習得中動句式的大致順序及本族人的使用頻率。 -
For the methods based on constraint residual, they can be used to only tell which node is imbalance but cannot identify where the gross error is. in order to avoid these problems, this thesis proposed a new test method. the new method combines an f - statistic with constraint residual statistic to detect gross errors in steady state processes
這種方法即避免了基於測量殘差的檢測方法會將顯著誤差分散到各個測量值中去的缺陷；又避免了基於約束殘差的檢測方法只能對節點的平衡性進行判斷，而無法確定顯著誤差的具體發生位置的缺陷。 -
Intetval estimation of mean square error for linear statistic model
統計模型中誤差方差的均方誤差的區間估計 -
In this paper, a statistic variable, squared prediction error ( spe ), is defined to detect fault and calculating formula of confident limit for spe is given
本文定義了一個統計量? ?平方預測誤差spe ? ?來檢測故障，並給出了其控制限的計算公式。 -
First, the standard errors computed under the assumptionthat the error term is independent identical distribution will be biased. second, theassumption of independence is unlikely to satisfied. in the panel data analysis modelwith hierarchical structure, hierarchical effects, nested effects, time effects are seted. then the dissertation deduced parameter estimation and hypothesis test statistic andits probability distribution and analyze the hierarchical panel data set : eastern china, central china and western china are the top level, and the prc ’ s province, cities, and autonomous regions are bottom level
然後針對目前面板數據分析過程中存在的兩方面問題，即一方面在利用面板數據模型進行分析時，標準誤差的計算是基於誤差項相互獨立並且同分佈的假設，如果誤差項是相關的將會造成估計有偏的後果;另一方面關于獨立性這一假設本身就難以滿足;提出多層嵌套面板數據模型，設定了層效應、嵌套效應以及時間效應參數，研究了多層嵌套模型的參數估計量和假設檢驗統計量及其分佈。 -
The paper introduced in brief the test standard, content and result statistic and determinant method, and analysed on emphsis the cause of the test result error, and put forward some matters need to notice and some advices and measures
文章簡要介紹了比對實驗的檢測標準、檢測內容及檢測結果統計與判定方法；重點就檢測結果誤差進行了原因分析，同時就如何提高檢測準確率和檢測精度提出一些注意事項及建議措施。 -
Based on the study of the theory of error inspection and the technology of actual form inspection, author proposed that apply reverse engineering to the digital inspection of door plate. based on reverse engineering, establish exactly surface matching, compare a stamping part with antetype in surfacer interface, to inspect the quality of stamping part, statistic analysis the inspection data, find the ultimate reason of quality fluctuate appeared
本文在對誤差檢測理論及現行形位誤差檢測技術進行深入分析的基礎上，提出了將逆向工程應用於轎車門板的數字化檢測的方法，通過建立精確的曲面匹配，將原型件與沖壓件在逆向工程軟體surfacer中進行形位誤差比較，檢測產品製造質量。 -
However, two - stage estimates of regression coefficients corresponding to these two estimates have approximate equal mean square error. for testing linear hypothesis about regression coefficients, banerjee and magnus ( 1997 ) studied the sensitivity of f - test sta, tistic ( fgls ( ) ) based on generalized least square estimate caused by variance parameter in general case and proposed sensitivity statistic and its distribution
關于回歸系數的線性假設檢驗問題， banerjee和magnus （ 1997 ）在一般情況下從理論上研究了方差參數對基於廣義最小二乘估計的f -檢驗統計量（ f _ （ gls ） （ ） ）的種種影響，提出了敏感性的概念，並給出敏感統計量的形式及其分佈。 -
In this paper, we analyze the statistic characters of time - delay in detail, and put forward to adopt elman nn to forecast time - delay intelligently, design appropriate compensator based on adaptive smith forecast theory. the experiment results prove that this method can improve the forecast accuracy and system ' s dynamic performance. in the application of real time data transmission, forward error correction ( fec ) is a good method to resume the lost data
針對這個問題本文進行了詳盡的統計特性分析，並且提出採用elman動態神經網路結構對網路時延進行智能預測，並根據自適應smith預估補償控制原理設計合適的時延補償器，並且應用於基於web的二階水位控制系統中，實驗結果證明了採用此方法可以提高預測精度，使時延補償器適應時延變化的動態性更強，從而在保證系統穩定性的基礎上，西安理工大學碩士學位論文提高系統的時延補償精度。 -
In the third part, the essences of steganography and disadvanges of common visual perception evaluation, such as psnr and wpsnr are studied. based on analysis local error that is introduced by embedding information, combining hvs, three objective perception evaluation method for steganography performance are proposed, which are based on human visual systems and local statistic error distribution respectively. in the steganalysis part, a steganography security statistic attack model and methods for some steganography methods are presented
在信息隱藏的性能評價方面，研究了常用的峰值信噪比，加權峰值信噪比等前人提出的感知性能評價準則，指出針對信息隱藏的性能評價不能單純從視覺特性出發，提出從信息隱藏的數據特性和感知特性出發，結合局部特性來考察失真誤差的變化的思想，並據此提出基於局部區域誤差統計分佈和視覺掩模方法評價信息隱藏性能的方法。 -
State estimation used by least square algorithm is usually done at the condition of unknown of it " s statistic property. to make the estimate error least, this paper introduce weight function and use weight least square algorithm ( wls ). the result of simulation shows that the precision of estimate result is highly enhanced and this method can satisfy the need of move and control of the power system
在不知道隨機干擾信號統計特性的情況下，採用最小二乘法對電力系統的運行參數進行狀態估計，為了使估計誤差的方差矩陣最小，本文引入權函數使用加權最小二乘法，使估計結果的準確性大大提高，模擬結果顯示，該方法完全能夠滿足電網運行和控制的要求。 -
Abstract : the definition, testing and statistic accessment of measure error of counter are commonly expounded according to physics, statistics and national standards
文摘:從物理和統計學的角度，對計數器測量誤差的定義、檢測和統計評價做一般性論述；並根據國家標準作了一些介紹和引伸。 -
Through plentiful repeated experiment and statistic analysis, the test data of each sample accord with the normal distribution, and the number of sample has been decided for each test to reduce the random error
對儀器的測試性能和測試方法進行了實驗探討和綜合分析，通過大量的重復實驗和統計分析可知對同一樣品的測試數據均符合正態分佈，並確定了樣品的測試子樣數。
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