posteriori 中文意思是什麼

posteriori 解釋
後面的, 其次的, 后驗
  1. The a posteriori plan was thought out after he learned how to play the game

    在他學會要怎麼玩這個游戲之後，推演的計畫就想出來了。
  2. Maximum a posteriori restoration with markov constraint for three - dimensional optical - sectioning microscopy

    三維顯微圖像復原及點擴散函數的研究
  3. A posteriori, what could you have done differently to improve your performance in this simulation

    如果是你，你將對此模擬個案提出怎樣不同的解決方案
  4. Residual a posteriori error estimate two - grid methods for the steady navier - stokes equation with stream function form

    方程流函數形式兩重網格演算法的殘量型后驗誤差估計
  5. A posteriori error estimation based on stress super - convergence recovery technique for generalized eigenvalue problems

    基於應力超收斂恢復技術的廣義特徵值問題后驗誤差估計
  6. The efficiency of this algorithm can be recognized from the experimental results which are attached at the end of this thesis. this thesis ends with the study of the maximum a posteriori ( map ) method with

    本文最後對最大后驗概率估計法進行了研究，給出了最大后驗概率估計法的原理、方法和步驟。
  7. 6. the basic principle of turbo equalization is discussed and the siso equalization algorithms based on a posteriori probability and interference cancellation are derived. at last, the simulation results are provided

    6 .論述了turbo均衡的基本原理，推導了基於后驗概率和干擾消除的5150均衡演算法，給出了性能模擬結果。
  8. 3 ) we try to import the bayesian adaptation, which is widely used in speech recognition, into speaker verification. we use bayesian maximum a posteriori estimation training a speaker model from background model, to solve the problem of model miss matching in speaker verification system

    3 ）為了解決說話人確認中存在的模型不匹配問題，嘗試將語音識別中的貝葉斯自適應演算法引入到基於高斯混合統一背景模型的說話人確認系統。
  9. The main contributions are as follows : ( 1 ) de ( differential evolution ) algorithm is proposed to invert the ocean acoustic parameters in shallow water in order to get faster and more accurate results than ga ( genetic algorithm ) and sa ( simulated annealing algorithm ). also a posteriori probability analysis method is applied to evaluate the uncertainty of inversion results. ( 2 ) maximum likelihood objective functions for broadband mfi are derived according to different conditions

    （ 2 ）根據不同的前提條件，採用似然比的方法推導了寬帶匹配場反演的最大似然目標函數；深入地研究了寬帶匹配場處理中的相干與非相干問題；在分析參數反演的敏感性之後，提出了淺海環境參數寬帶匹配場反演的多步優化策略，並與全參數反演方法進行了性能上的模擬比較。
  10. And then facing the problem of the channel estimation of the adaptive modulation system, we conclude out the channel estimation algorithms on maximum likelihood ( ml ) estimation and maximum a posteriori ( map ) estimation under the condition of flat fading channel and selective fading channel in detail. to meet flat fading channel, we simulate the relationship of the ratio between the error covariance in map estimation and ml estimation and pilot symbol message length. the conclusion can be drawn from these results

    接著，對自適應調制系統中的通道估計問題難點，詳細推導了平衰落通道條件下和選擇性衰落通道條件下最大似然（ ml ）估計和最大后驗概率（ map ）估計演算法，針對平衰落通道，我們模擬了map估計和ml估計的方差與導頻符號長度的關系，模擬結果表明，錯誤方差受多譜勒頻率的變化影響最大，並且對實際的自適應調制系統，導頻符號長度的取值超過20個符號長度時， map通道估計明顯優于ml通道估計。
  11. You state dogmatically the latest facts which science has been able to establish only by e posteriori reasoning

    你武斷地提出的東西是科學靠演繹推理新近才確認的道理。
  12. 3, on the base of the traditional spatial filtering, the author present, a new despeckle algorithm, that make use of iterated processing and correlated neighbourhood model, iterated filtering method of the sar image combining the correlated neighbourhood model with maximum a posteriori filter. first, a series of templates refecting direction information are established and every template is present for a kind of neighbour structure. then on the basis of sar images statistical property, the maximum a posteriori estimate of the real intensity under observation image values is got by bayes formulatio - n

    3 、針對傳統空間濾波器的不足，引入迭代處理和相關鄰域模型的概念，提出了基於相關鄰域模型的最大后驗迭代濾波。該演算法引用一系列反映局部邊界特徵的鄰域模型，以描述圖像的細節。引入強度的先驗概率分佈模型，利用bayes方法，對各個結構進行實際強度的最大后驗估計。
  13. Posteriori lists can also promote preciseness of retrieval. cv refines the semantic demands with cost - effective method

    后控詞表可改善用戶檢索的查全率。
  14. Abstract : starting from the definition of weight, the paper derives the relaton detween the change of the a priori unit weight weight mean error with the result of adjustment. lt is found that the change has influence only on the exploring effect of the posteriori unit weight mean error and gross error and the coordinated factor matrix, and no influence on all other adjustment results

    文摘:該文從權的定義出發，導出了先驗單位權中誤差的變化與平差成果的關系，發現其變化僅對驗后單位權中誤差、粗差探測效果和協因數陣有影響，對其它平差成果均無影響。
  15. By applying the singular system of campact operator and the method of posteriori choosing determine the regular parameter, we can also prove the convergence of the regularized solution given [ 1 ]

    摘要本文利用緊運算元的奇異系統后驗選取正則參數，證明了文[ 1 ]中的改進的正則化解是收斂的。
  16. This thesis is to present and analyze one class of regularized multi - grid algorithms ( rmga ) for solving operator equations of the first kind. the rmga employs tikhonov ' s regularization to solve the corase grids equations with a new choicing parameter ' s posteriori - method for improving the numerical stability, and adopts a new smoothing strategy to correct the solutions on the fine grids for preserving the high efficiency of mgm. meanwhile, some key technical problems in the process of implementation of rmga are disscussed

    本文將提出一類適合第一類運算元方程的正則化的多重網格演算法，它結合一種新的正則參數選取準則，應用tikhonov正則化來求解粗網格方程保證了求解的穩定性；而在將解向細網格延拓時使用了一種新的光順處理策略。
  17. Among others, the probability analysis approach has difficulty in deciding objective probability, and thus it is necessary to obtain subjective probability through expert empirical prediction, modify it by the bayesian formula and get a posteriori probability, and substitute it for objective probability in risk measurement and risk premium calculation

    其中，概率分析方法在應用中就存在客觀概率不易確定的難點問題，因此需用專家經驗預測法得到主觀概率后，利用貝葉斯公式加以修正並獲得后驗概率，再用后驗概率代替客觀概率進行風險的度量及風險收益的計算。
  18. Some new ideas are proposed in this thesis based on svm and ica : firstly, a modified svm method based on posteriori probability theory is given, which makes the classification super plane corrected from the original one. a better classification result is obtained without finding the best quadric optimization algorithm and large scale training datasets are reduced to small scale training datasets at the same time. secondly, ica is applied to the preprocessing period of the recognition character images for purpose of feature extraction and dimension reduction

    本文在系統研究svm和ica的基礎上提出了以下新的觀點：其一是採用了引入后驗概率的修正svm方法，它在原分類超平面的基礎上不斷修正分類超平面，提高分類正確率，從而避免了尋找最優二次規劃的麻煩，同時將大規模訓練樣本集化為小規模訓練樣本集；其二是應用獨立分量分析ica對需要進行識別的字元圖像預處理，提取字元特徵，降低輸入數據的維數，從而可以為下一步的svm識別過程提供好的數據集，用以提高識別率和識別速度。
  19. 4 ) posteriori error estimation based on superconvergent patch recovery ( spr ) is introduced, and afem is established according to global error estimation and local error estimation

    4 ）引入基於超收斂條恢復（ supereonvergentpatchreeovery ，簡稱spr ）的后驗誤差估計法，建立了基於全局誤差估計和局部誤差估計的自適應有限元法。
  20. In the process of decision with risks, if we using sampling theory, the best decision in prior probability and modified posteriori probability can be obtained

    在進行風險型決策過程中，若能結合抽樣理論，就可以以最低的代價找到先驗概率下及修正後的后驗概率下選擇最優決策方案。
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