exact algorithm 中文意思是什麼

exact algorithm 解釋
確切演算法
  • exact : adj. 1. 精密的，準確的。2. 嚴格的，嚴正的；嚴厲的。3. 嚴密的。vt. 1. 勒索（錢財等），強要。2. 強制，逼使（服從等）。3. 急需，需要。
  • algorithm : n. 【數學】演算法；規則系統；演段。
  1. The procedure functions in the compare between partial image of dynamic collection and corresponding image of the airscape. in chapter 5, basing on the analysis of correlative theory of digital image, we introduce the improved fasted - down algorithm and simulative anneal algorithm, which applies to nn calculation, an d bring forward the unique and effective means, correlative original value evaluation. basing on the combination of correlative arithmetic, a stable, high - speed and exact correlative arithmetic is formed, which makes it possible to apply computer vision detection of single - needle quilting in industrial production

    本文展開研究並取得一定成效：構建了基於pci總線的微機實時圖像採集系統；在採集的布料總圖（鳥瞰圖）的基礎上，通過數字圖像的數字濾波、圖像增強、邊緣檢測等處理，提取布料圖像的邊緣，對輪廓的矢量化的象素點進行搜索，得到相應的圖案矢量圖，從而確定絎縫的加工軌跡，生成加工指令；在進給加工過程中，主計算機對動態局部圖像與總圖（鳥瞰圖）的對應部分進行圖像相關的匹配計算，應用數字圖像理論，結合神經網路計算的改進最速下降法和模擬退火演算法，提出獨特而有效的相關迭代初始值賦值方法，形成穩定、高速和準確的相關運算，實現單針絎縫視覺測量和自動控制。
  2. In this article, double threshold, iteration is applied to improve segmentation algorithm based on signal energy, and short - time zero - crossing rate is proposed for the first time to determine the exact boundaries between different components of heart sound

    本文通過使用雙門限、迭代等方法，改進了基於信號能量的分段演算法，並首次引入短時過零率以更準確地定位分段邊界。
  3. Based on the careful analysis of present clustering algorithm, we give two text clustering algorithms : ek ( exact k - means algorithm ) and dbtc ( density - based text clustering ), and discuss the results of clustering experiments

    對現有聚類演算法進行了仔細分析，給出了兩個文本聚類演算法： ek演算法和dbtc演算法。對這兩種演算法進行了詳細介紹，並分析了聚類實驗的結果。
  4. Nye t j. optimal nesting of irregular convex blanks in strips via an exact algorithm. international journal of machine tools & manufacture, 2001, 41 : 991 - 1002

    崔耀東.計算機排樣及其應用.北京:機械工業出版社， 2004年1月第一版
  5. A novel dynamic evolutionary clustering algorithm ( deca ) is proposed in this paper to overcome the shortcomings of fuzzy modeling method based on general clustering algorithms that fuzzy rule number should be determined beforehand. deca searches for the optimal cluster number by using the improved genetic techniques to optimize string lengths of chromosomes ; at the same time, the convergence of clustering center parameters is expedited with the help of fuzzy c - means ( fcm ) algorithm. moreover, by introducing memory function and vaccine inoculation mechanism of immune system, at the same time, deca can converge to the optimal solution rapidly and stably. the proper fuzzy rule number and exact premise parameters are obtained simultaneously when using this efficient deca to identify fuzzy models. the effectiveness of the proposed fuzzy modeling method based on deca is demonstrated by simulation examples, and the accurate non - linear fuzzy models can be obtained when the method is applied to the thermal processes

    針對模糊聚類演算法不適應復雜環境的問題，提出了一種新的動態進化聚類演算法，克服了傳統模糊聚類建模演算法須事先確定規則數的缺陷.通過改進的遺傳策略來優化染色體長度，實現對聚類個數進行全局尋優;利用fcm演算法加快聚類中心參數的收斂;並引入免疫系統的記憶功能和疫苗接種機理，使演算法能快速穩定地收斂到最優解.利用這種高效的動態聚類演算法辨識模糊模型，可同時得到合適的模糊規則數和準確的前提參數，將其應用於控制過程可獲得高精度的非線性模糊模型
  6. Vsp is a typical strong np - hard problem, high effective exact algorithm is immposible to it. heuristic algorithm can resolve large - scale problem, but cannot ensure the quality of the resolution

    Vsp是一個典型的np -難題，高效的精確演算法存在的可能性不大，啟發式演算法雖能快速求解大型問題，但對解的質量沒有保證。
  7. Secondly, according to the characteristics of few hubs in the practical hub and spoke airline network, the shortest path algorithm is improved, and an exact algorithm is proposed to solve the airline network robust optimization model, with which robust solutions suitable for various possible scenarios are obtained

    然後結合中樞輻射航線網路實際應用中樞紐個數少的特點，對最短路演算法加以改進，提出了一種求解航線網路魯棒優化設計的精確演算法，得到了適用於多種可能情景的魯棒解。
  8. So a conclusion can be got that the annealing in n2 raises the la2o2, stability. 3. the exact solution and wkb approximation are compared, the exact solution agrees with the wkb approximation in calculating the mono - layer sio2 tunneling current, but the wkb approximation is inappropriate for the dual layer oxide - lanthanum structure, while the exact algorithm can give a exact result

    比較了wkb和精確解法計算柵介質隧穿電流的方法，精確解法在解決單sio _ 2層和wkb準經典近似有相同的結果，但是wkb不適合計算la _ 2o _ 3 / sio _ 2雙層柵介層的隧穿電流，而精確解法能精確地計算雙層柵介質隧穿電流。
  9. The application of sa and heuristic algorithm in packing problem is studied deeply. an improved sa, which utilizes heuristic approach in search tragedy and movement tragedy, is introduced and manifested to enhance the rate of convergence with an extent of exact solution

    對sa演算法和啟發式演算法在布局問題中的應用進行了研究，為提高收斂速度同時保證一定精確度，對sa演算法進行了改進，在演算法的搜索策略和變動策略中應用了啟發式方法，縮小布局狀態空間的搜索。
  10. For the exact feedback linearization of general nonlinear singular systems, by taking the algebraic variables as virtual inputs, a recursion inverse algorithm is introduced in this paper

    摘要對一般廣義非線性系統的反饋線性化問題，通過將代數變量視為虛擬輸入，給出了構造性遞歸求逆演算法，實現了系統的精確反饋線性化。
  11. If we know the exact value of vvm we will have, for integers n < m, a deterministic primality testing algorithm which is not only easier to implement but also faster than either the jacobi sum test or the elliptic curve test. thanks to pomerance et al

    如果知道了_ m的準確值，那麼對小於_ m的整數n ，我們就有了一個確定性素性測定演算法，它不僅容易實現而且比jacobisum測試和橢圓曲線方法都要快。
  12. Chapter 4 : the influence of different phase - shifting angle of reference wave in recording, of the phase - shifting error and of the quantization error on the quality of the reconstructed image is investigated respectively in two - step phase - shifting inline digital holography. and an effective method of eliminating the phase - shifting error is presented, in which the summation of the intensity bit errors of the reconstructed image is taken as an evaluation function for an iterative algorithm to find the exact phase - shifting value. the feasibility of this method is demonstrated by computer simulation

    通過數值分析不同相移角的選取對再現像的強度誤差的影響，發現再現像強度誤差依賴于記錄時相移角的選取，當相移角在一定范圍內，其再現像的強度誤差相對較小；提出了一種有效消除相移誤差的新方法，並將其應用於二步同軸相移數字全息，對此進行了計算機模擬，得到了很好的結果，證明該方法對于相移誤差的消除是很有效的；對量化誤差所作的數值模擬發現，當信號被量化成8比特（ bit ） ，即256個灰度級以上，量化噪聲的影響相對較小。
  13. To solve the tradeoff between congverence and computational complexity, befap is proposed in chapter 3, which is based on block - exact processing and affine projection algorithm. chapter 4 offers hardware and software implementation of the acoustic echo canceller based on tms320vc5409 dsp, which can be applied to a terminal of the tele - conference or video - conference

    為了在收斂速度和運算量之間得到很好的折中，第三章提出了一種基於仿射投影演算法和精確塊技術的快速的自適應演算法（ befap演算法） ，並對該演算法作了詳細的分析和研究。
  14. Details are as follows : we deal with properties of bilevel linear programming and prove the equivalence of bilevel linear programming and optimization over the efficient set. a class of multi - objective tow level programming, i. e. the upper - level is single objective and the lower - level is linear multi - objective, is mainly discussed. it can be converted into the optimization over the efficient set with parameter and an algorithm is given with its finite termination being proved ; when the upper - level is linear function, an exact penalty function algorithm is given

    分層（分級）遞階系統是社會組織管理的主要形式，多層規劃是研究這類系統優化問題的基本模型，其鮮明的實際背景和廣泛的應用前景引起了人們的廣泛關注，成為一個新興的活躍的研究領域，本論文研究了二層規劃中的若干問題，主要工作如下：討論了二層線性規劃的性質，並證明了它與零有效集上優化問題的等價性；對一類二層多目標規劃（上層為單目標規劃、下層為線性多目標規劃的問題）進行了探討，將其轉化為含參變量的有效集上的優化問題，進而給出了一種演算法，並證明了該演算法的有限終止性；當上層為線性單目標時，給出了一種罰函數方法
  15. Ga is less prone to converge to a local optimum even when the initial guess is far away from the exact solution. in recent years, a growing number of researchers in the ga community turn to the study of real - coded genetic algorithm ( rga ) for its simplicity and efficiency, and the reason that a chromosome can be directly represented by real number

    然後引入全局優化的搜索方法?遺傳演算法，由於實數遺傳演算法直接用實數表示遺傳個體，而微波成像演算法就是要得出目標的形狀函數，形狀函數的系數既為待求的變量，具有連續搜索空間，因此本文直接採用實數遺傳演算法。
  16. A fast computation algorithm is put forward for the exact determination of the specified step controllable region of constrained discrete - time lti system, which st

    基於凸多面體集合的幾何特性，給出了離散時間有約束線性時不變系統有限步可控域的一種快速精確演算法； 3
  17. In chapter two, psr ( point spread response ) h ( t, x ; r0 ) is adopted to depict the model of sas system. exact transfer function is also given. time domain algorithm, range - doppler algorithm and wave number domain algorithm are being discussed and compared on this foundation

    在此基礎上，分別討論時域演算法、距離? ?多普勒演算法、波數域演算法並對其進行了比較，並對波數域演算法的并行性做了初步研究。
  18. By comparing the numerical results of water infiltration with air and without air, it is shown that the method in this paper is more effective for solving problems of water infiltration in unsaturated soil. in this paper the forming process of oil - bearing basin is the main research object and the mathematic model of geology is built, in order to simulate the dynamic forming process of stratums especially oil - bearing stratum in geology history in the time and space concept, further to investigate the history of petroleum forming, transmitting, accumulating and predict the distributing rule and scope of petroleum, and offer an rapid, quantitative, exact, general choice for the researcher of petroleum geology. with denudation, poor - compactness and sedimentation hiatus, the stratum relations of sedimentation section is judged, and the ancient thickness and pressure of stratum layer are recovered by the inversion method of back stripping. the numerical simulation algorithm of recovery of geological history is also given

    為了利用現代化的計算技術再現含油氣盆地的地史演化發育過程，以便進一步定量化研究油氣的生成、運移和聚集的歷史以及預測油氣分佈規律、分佈范圍，為石油地質學家提供一個快速、準確、定量、綜合的研究手段，本文就含油氣盆地的地史演化發育過程為主要研究對象，建立了數學地質模型，運用優化理論與演算法，在考慮了剝蝕、欠壓實、沉積間斷等地質現象的情況下，採用回剝反演法，應用鉆井、測井、地震等方法獲得的地層物性資料，判別沉積剖面中地層的接觸關系，恢復地層的古厚度、古壓力，構造了地史恢復的數值模擬方法。
  19. The mathematics - mechanization method is applied the field of differential equations. many algorithm for constructing solitary wave solutions for a class of nonlinear wave equations are given, and implemented in a computer algebraic system, such as the hyperbolic tangent function method and the hyperbolic function method etc. exact solitary wave solutions of a great deal of nonlinear equations are gained

    將機械化數學方法應用於偏微分方程領域，建立了構造一類非線性波方程的精確孤立波解的許多演算法，如，雙曲正切函數展開法，雙曲函數方法等，並在計算機數學系統上加以實現，因而推導出了一批非線性波方程的精確孤立波解。
  20. Within one single source echo, both doa and time - delay can be estimated simultaneously by this algorithm via high - resolution rotational invariance technique and high - resolution time - delay frequency ( tdf ) technique. the esprit - tdf algorithm has features of low computation, good precision, and high resolution both in doa and time - delay. it is suitable for multiple source exact localization

    該方法利用高分辨旋轉不變技術和高分辨時延頻率技術，可在單次目標回波內實現多目標信號的方位和時延參數的高分辨聯合估計，具有運算量小、分辨能力強、估計精度高等特點，能夠對多目標進行高分辨精確定位。
分享友人
分享到 Line

分享到臉書