迭擇 的英文怎麼說

中文拼音 [diězhái]
迭擇 英文
choice
  • 迭 : Ⅰ動詞（輪流; 替換） alternate; change Ⅱ副詞1 （屢次） repeatedly; again and again 2 （及） in tim...
  • 擇 : 擇動詞（挑選） select; pick; choose
  1. In the self - calibration scheme, the thesis emphasizes the accuracy of camera intrinsic and extrinsic parameters. we presents an accurate f method based on corresponding point adjustment. the method adjusts coresponding points according to the fixedness of projective transformed cross ratio, then calculates f matrix accurately through linear and non - linear methods. when computing intrinsic parameter, a matrix, we simplify the step, and stress on the two important parameters of a. the result will be getten through solving kruppa equation based on svd decomposition. in order to compute extrinsic parameters, we use linear method to get initial r and t, then apply non - linear method to accurate them

    提出了基於匹配點調整的f求精方法，先根據攝影交比不見性對手工選擇的匹配點進行調整，再用線性、非線性結合的方法求精f矩陣；在計算內部參數a中，進行了一定的簡化，把重心放在a中重要的兩個參數上，用svd分解法計算kruppa方程；在計算外部參數時，首先用線性法求解r 、 t ，然後再用非線性法迭代求精。
  2. Abstract : based on the iterative bit - filling procedure, a computationally efficient bit and power allocation algorithm is presented. the algorithm improves the conventional bit - filling algorithms by maintaining only a subset of subcarriers for computation in each iteration, which reduces the complexity without any performance degradation. moreover, a modified algorithm with even lower complexity is developed, and equal power allocation is introduced as an initial allocation to accelerate its convergence. simulation results show that the modified algorithm achieves a considerable complexity reduction while causing only a minor drop in performance

    文摘:基於迭代的比特和功率分配機制，提出了一種低復雜度的比特和功率分配演算法.與傳統的迭代分配演算法不同，該演算法在每次迭代中只需要比較幾個特定的子載波.該方法在保持傳統迭代演算法性能的前提下極大地減小了迭代分配演算法的復雜度.此外，通過選擇等功率分配方案作為初始方案加快了演算法的收斂速度，進一步降低了演算法復雜度.模擬結果表明，提出的改進演算法在基本不犧牲系統性能的前提下有效地降低了演算法復雜度
  3. Fourthly, because of the fluctuation of grouping efficacy during the fcm iteration process, the iteration solution selecting procedure is put forward, with which the infeasible solution of last iteration will not be selected. 5

    第四，針對fcm迭代過程中製造單元構建方案成組效率的波動性，提出了迭代方案選擇方法，基本避免了fcm選擇的最終迭代方案不可行的問題。
  4. It ' s unable to estimate the dispersion effects. in this paper, we consider a model of heterscedasticity, and present a new algorithm on the basis of hamada and wu ( 1991 ) ' s iterated algorithm on estimation of location effects, combining brenneman and nair ( 2001 ) ' s mh method on estimation of dispersion effects. this algorithm of model selection and simutanious estimation of location and dispersion effects analyze unreplicated factorial experiments with censored data

    本文考慮試驗點是異方差的模型，在hamada和wu （ 1991 ）位置效應分析方法的基礎上，將brenneman和nair （ 2001 ）散度效應分析的mh方法融入其中，對帶有截尾數據的無重復因子試驗給出了模型選擇以及同時估計位置效應和散度效應的迭代演算法，改進了hamada和wu的方法。
  5. Genetic algorithm ( ga ) is a set of new - global - optimistic search algorithm repeatedly which simulate the process of creature evolution that of darwinian ' s genetic selection and natural elimination

    遺傳演算法是模擬達爾文的遺傳選擇和自然淘汰的生物進化過程的一種新的迭代的全局優化搜索演算法，已經廣泛地應用到組合優化問題求解、自適應控制、規劃設計、機器學習和人工生命等領域。
  6. Aim at ubiquitous parallel multi - reservoir structure in our country ' s basin, the universal objective function including coefficient bi embodying a spatial significance difference at different flood control points and variable ai denoting a selection of scheduling mode is established, which provide a valid intervenor interface for flood control consultation decision. according to the real - time requirement, a model of reservoir storage allocation is proposed, which embody basic idea of phasic compensation. passing the dynamic correction to cut down the disadvantageous influence that indetermination result in on the certain degree, joining together the step alternation solving method, this model can maximally consider bias of decision makers, ensure the rationality and practicability of the solutions

    針對我國流域中普遍存在的並聯庫群結構，論文提出包含不同防洪點重要性的系數_ i和選擇調度模式的變量_ i的通用目標函數，為防洪會商決策，提供了有效的人工干預介面，根據實時性要求提出動態分配防洪庫容的庫容分配方法，體現了相機補償的基本思想，通過動態修正在一定程度上可以削減不確定性造成的不利影響，結合分步迭代求解技術，能最大限度體現決策者的偏好，保障解的合理性和可操作性。
  7. ( 2 ) from the viewpoint of growth, it has powerful branching ability. it is suitable to be transplanted in warm seasons such as spring and autumn, or in small rainfull period, and generally it is optimal in october and april. it is also suitable in topography and soil with good discharge capacity, and soil humidity should remain from 15 % to 70 %

    （ 2 ）在生長發育上，迷迭香具有較大的分枝能力，適宜選擇春季和秋季溫暖、雨量不多的時期扦插，一般在10月和4月最佳，要求排水良好的地勢和土壤，土壤濕度應保持在15 - 70之間。
  8. This paper exhausts fully adjustable factor which could amend the dynamic function in fuzzy control system, and that traditional algorithms select factors with intercession is easy to get a partial solution, so this paper presents a new method to select factors based on genetic algorithm. this method has a large range over covered the solutions which could benefit to search the best solutions. it has great character and advantage

    本文充分闡述了可調整因子在模糊控制中能夠改善了系統的動態性能，並根據傳統的優化演算法在選取控制因子時是從單個初始值迭代求取最優解的、很容易陷入局部最優解這一問題，提出了一種基於遺傳演算法的可調整因子的選取方法，這種方法覆蓋面比較大，有利於全局擇優。
  9. The paper puts forward the clustering algorithm includes : clustering based on grid and iterative, enhanced clustering algorithm base on density and k - medoids, enhanced k - means algorithm ( optimize chooseing consult _ points in iterative process ), enhanced clustering algorithm base on distance. they can overcome many limitations ( some traditional algorithms terminate in local optimization. many results of cluster are roundness, too many times in partition iterative process ), which are related to the static architecture of traditional model

    在傳統聚類演算法的基礎上，結合我們科學數據挖掘的應用對象?分子動力學數據，提出了迭代網格聚類演算法， k -平均和基於密度結合的聚類演算法，迭代過程中優化選擇中心點的k -平均方法，以及改進型的基於距離的聚類演算法等模式識別方法，能夠解決傳統演算法帶來的諸多問題（比如一些傳統的聚類演算法常常收斂于局部最優，發現都模式都趨近於球形，劃分方法中迭代次數過多帶來的效率問題） 。
  10. For this method, the matrix inversion and iterative reconstruction are selected based on the quantity and quality of data, and then the physical model and the actually measured data are processed by using this method

    層析成像演算法根據數據量大小、品質來選擇矩陣反演法與迭代重建法，然後對物理模型、實測資料進行層析成像處理，結果獲得滿意的重建異常體圖像。
  11. Furthermore, in the last part of this paper, based on the simulation results, some problems of artificial neural network algorithm are addressed

    收斂性是神經網路校正演算法的關鍵問題，本文最後對此進行了理論探討並根據模擬結果對其迭代步長進行選擇。
  12. In the first part of this paper we present a laser scanning location algorithm based on least square algorithm using landmarks. then successively, we give the principle of the landmarks option and position recovery algorithm. in the end, the work process of algorithm is given

    給出了結構化環境中移動機器人路標閥值匹配演算法，對定位演算法，本文提出了一種基於最小二乘法的迭代搜索多路標定位演算法，並通過模擬實驗歸納出路標優化選擇的準則，提高了系統的定位精度。
  13. This thesis suggests a process considered minimizes the population size as similar individuals occur in the fitter members of the population, which helps reduce the execution times for ga by removing the redundancy associated with the saturation effect found in the later generation. this thesis uses a method that adds dynamic penalty terms to the fitness function according to the optimal degree of solutions, so as to create a gradient toward a feasible suboptimal or even optimal solutions. on the basis of the difference of the biggest and the smallest of fitness of individual, modifying the fitness function in order to convergence is a satisfaction

    動態調節種群大小，去掉遺傳演算法在迭代後期搜索產生的過多相似個體，達到減少計算時間的目的；按照解的優劣程度給適應度函數增加一個在ga搜索過程中動態改變的可變罰函數，給搜索最優解創造一個梯度，使遺傳演算法收斂到可行的較優解或最優解；根據適應度值最大和最小個體的差修正適應度函數，使適應度函數值適中不容易造成收斂太快、局部收斂或根本不收斂而變成隨機搜索；為了避免「近親繁殖」採用競爭擇優的交叉操作；利用并行遺傳演算法的思想，提出一種自適應多子種群進化策略；提出人口汰新政策來解決類似甚至相同的個體的情況發生。
  14. You determine the number of iterations when you first enter the loop

    是較好的選擇。您需要在第一次輸入循環時確定迭代次數。
  15. In terms of history and jurisprudence, the legal protection of computer software is historically necessary and the change of its protection model is the product of legal choice

    從歷史和法理的角度分析，計算機軟體法律保護是歷史發展的必然，其保護模式的更迭是法律選擇的結果。
  16. A fast and accurate algorithm to estimate the frequency of a coherent pulse sinusoid is presented in chapter 3. it is based on the autocorrelation iterative method, and the simulation results show that for the lower snr, this algorithm can accord with the request of the soplat ’ s precision and less computational complexity. therefore, it ’ s a promising algorithm for practical application

    在對正弦脈沖信號的頻率估計中，第三章在總結、比較前人演算法的基礎上，選擇了基於自相關迭代的頻率精確估計演算法，並進行模擬分析，結果表明，該演算法在較低信噪比時，可以達到單站無源定位所要求的估計精度，且運算量小，具有廣闊的應用前景。
  17. During segmentation of the bridge image, this paper synthetically thinks over the advantages of self - adapted selection threshold and iterative selection threshold, and presents own self - adapted iterative selection threshold. what ' s more the variance of the infrared image is neatly applied to the visible image. at the time of beeline extraction, this paper mends hough transformation, and use novel method, which reasons the information gamed from the transformation field into the image field, to eliminate the inability to locate beeline of hough transformation

    做橋梁識別，進行圖像分割的時候，本文結合了自適應閾值選擇演算法與迭代閾值選擇演算法的優點，提出了自適應迭代閾值選擇演算法，同時把紅外圖像中的方差圖引入到可見光圖像的處理中；在圖像中提取直線的時候，對hough變換進行了一些改進，同時針對其不能定位的缺點，使用了把變換域得到的信息反推到圖像域的方法，解決了這個問題。
  18. The reason to choose this approach can be found if the organization finds that the risks in taking the iteratively developed system directly into production are too high

    如果組織發現，將採取迭代化開發的系統直接產品化的風險太高，就可以找到選擇這種方法的原因了。
  19. Both methods provide good performance, and the latter is better since it can give a better describing of the residual distribution of matches. in the study of camera self - calibration, firstly, based on discussion of using and the selecting of scene constraints, two new robust vanishing point estimation algorithms are presented. one is based on peransac, and the other is based on clustering

    在相機自定標技術的研究中，首先，在討論利用和選擇景物約束的基礎上，提出兩個新的消失點估計演算法:基於peransac的估計演算法和基於聚類分析的估計演算法，後者在估計精度上優於前者;其次，提出了綜合利用空間平行線約束和相機主點位置約束的線性迭代自定標方法，提高了相機自定標的魯棒性。
  20. The reason that the noise is lower with inclining tongue is : 1 ) both the radius of the tongue and the gap between the tongue and the blade are changed across the wideth ; 2 ) the phase angle between blade and the tongue is changed across the wideth, therefore the peak value of the noise do not appear at the same time, so the peak value of the noise with inclining tongue is much lower than the straight one. the influence of the expanded angle of the shell of the fan on the noise was invested experimentally, and the optimal angle was got

    傾斜蝸舌降噪的主要原因是：一是改變了從氣流入口側到風機輪盤的蝸舌間隙和蝸舌半徑；二是改變了葉輪與蝸舌非定常相互作用的相位差，使其產生噪聲也有相位差，迭加的結果進一步降低了噪聲。另外，試驗研究了不同蝸殼擴張角對風機噪聲及效率的影響規律，蝸殼擴張角選擇當否，對效率和噪聲影響較大。
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