離散數列 的英文怎麼說

中文拼音 [lísǎnshǔliè]
離散數列 英文
discrete series
  • 離 : Ⅰ動詞1 （離開） leave; part from; be away from; separate 2 （背離） go against 3 （缺少） dispens...
  • 散 : 散動詞1. （由聚集而分離） break up; disperse 2. （散布） distribute; disseminate; give out 3. （排除） dispel; let out
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 列 : Ⅰ動1 （排列） arrange; form a line; line up 2 （安排到某類事物之中） list; enter in a list Ⅱ名詞1...
  • 離散 : dispersed; scattered about; separated from one another; spread; debunching; straggling; fringing;...
  • 數列 : progression; series; a series of numbers arranged according to a certain rule
  1. Previous researchers have always determined the sp atial distribution patterns ( sdp ) of castanopsis kawakamii with a sample - dis tance method. however, the distribution patterns may be affected by the quadrat si ze and, in the course of analysis, the density differences among the cluster plots are not considered ; therefore, differences of cluster plot size and the dispersi on degree among individuals of cluster plots can not be known. authers of this pa per have determined the spatial distribution patterns of castanopsis kawakamii population in different habitats by means of non - quadrat distance method and a nalysed the pattern intensity and grain of the sdp. the pattern intensity is defi ned with the relative density differences and the pattern grain can embody the d ispersion degree of the individuals in the plots, and the dispersion degree among the plots. the determined results are as follows. the intensities of the species range in order from strong to week : litsea mollifolia p. kawakamii i. purpure a r. cochinchinensis c. kawakamii c. carlessii d. oldphamii s. superba. the gra ins of the species queue in order from coarse to close : s. superba = litsea mollif olia r. cohinchinensis c. kawakamii = i. purpurea c. carlessii p. racemosam d. oldp hamii. these determined results tally basiclly with the results authers of this paper have got in determining the same plots by means of aggregate index access ing method. in view of this, it is held that the sdp of c. kawakamii is closely related to the habitats and biological features

    前人都是採用樣方方法對格氏栲種群數量的空間格局進行測定，而格局分佈有可能受樣方大小的影響，且分析過程中沒有涉及聚塊間密度差的問題，因而無法掌握種群的聚塊大小差別及聚塊內個體間的離散程度.本研究採用無樣方距離法，測定不同生境的格氏栲種群空間格局，分析格氏栲種群格局的強度和紋理.強度以聚塊和間隙的密度差來定義，紋理則是體現聚塊內個體間的離散程度與諸聚塊間的分離程度.測定結果表明，格氏栲種群格局強度從高到低排列次序為：木姜子蚊母樹冬青茜草樹格氏栲米櫧虎皮楠木荷；格局紋理從粗到細的順序是：木荷=木姜子茜草樹格氏栲=冬青米櫧蚊母樹虎皮楠.這一測定結果與作者採用聚集度指標測定相同樣地格氏栲種群空間格局的結果基本相符.因此，格氏栲空間格局類型及分佈與格氏栲生物學特性及生境的關系密切
  2. In the method of impulsive synchronization, both seriate system and discrete system have been discussed. a series of discrete hyperchaos systems that have the lowest dimension have been constructed, and we have achieved the impulsive synchronization of discrete system in circuit

    脈沖同步法中，分別從連續系統和離散系統兩方面進行討論，構造出一系列具有最低維數的離散超混沌系統，並通過電子線路實現了離散系統的脈沖同步。
  3. The discussion of main parallel technologies on construction of parallel sliq algorithm is presented in this paper. the computing result of algorithm complexity of sequential and parallel algorithm indicates : when the data set is large enough, as to continuous attributes, the parallel algorithm almost get speedup value equal to the number of processors ， while as to categorical attribute the improvement of parallel algorithm is limited

    通過對串列和并行演算法時間復雜度的計算表明，當數據集充分大時，由於連續屬性的排序計算操作分散到各個處理機單元上進行，顯著降低了計算時間，從而可以得到近似於處理機個數的加速比，對于離散屬性，本并行演算法對串列演算法的性能提高有限
  4. Firstly, a system was developed in functions to collect infrasound data, to transform analog voltage signal from detector into discrete signal by a / d card and to process the data by using methods of digital signal process

    首先設計一套數據採集系統，次聲波信號通過傳感器被轉換成模擬電壓信號，通過a d板將其轉換為離散的數字序列，輸入計算機。利用數字信號處理的原理和方法對異常次聲信號進行分析處理。
  5. And at this foundation through the dispersed domine analyse the paper makes a great emphasis on the application of computer aided design and simulation, then designs a series of apfc design and simulation software. this paper takes out a set of designation and simulation on base of actual circuit. the reliable result, output voltage and inductance current which are got from this software are the same as the actual value

    本文在對一系列apfc電路設計、模擬分析方法討論比較的基礎上，著重應用離散時域法進行了計算機輔助電路設計和模擬方法的應用探索，以此為基礎設計了pfcexpert功率因數校正電路設計、模擬軟體，針對實際電路給出了整個設計和模擬全過程，通過實驗驗證了該軟體所得到的精確穩態解、瞬態輸出電壓和電感電流，與實際電路輸出基本相同，所建立的電路模型重現了電路的運行過程，反映了電路的實際工作機理。
  6. Sets up three - dimensional movement modal of towed - cable, the vector dynamic equilibrium equation is expanded under local coordinate, and numerically discreted by central difference on time and space through transforming eular angle

    摘要建立拖纜的三維運動模型，通過歐拉角的變換把拖曳線列陣微元段矢量動力平衡方程在局部坐標系下展開，在時間和空間上作中心差分數值離散。
  7. For the bundle with small number of fibers, the discrete common model is proposed by building a 60 coordinate system ; for the bundle with large number of fibers, the integral common model is proposed by introducing a parameter called distribution density of the distance between fiber axes ; furthermore, the model of combined fiber bundle sensors is introduced

    對于小數目光纖組成的光纖束，通過建立60角坐標系來分析不同排列形式的光纖束，建立了離散式通用模型；對于大數目光纖組成的光纖束，通過引入軸間距分佈密度參量，建立了積分式通用模型；進而給出了組合式光纖束傳感器的模型。
  8. Moreover, fibonacci design method was used for structural optimum design with discrete variables

    利用斐波那契數列的規律，提出了離散變量結構優化設計的斐波那契演算法。
  9. Associating with the research and development of national natural heavy concentrate system, considering the feature of natural heavy concentrate database separately stored in every province, which is of mass data, discrete, irregular distribution, and influenced by hardware factors, such as computer configuration and network transfer speed, distributive database and parallel computing philosophy is applied, zone partition and multi - threading queue method is employed to retrieve and process the discrete data within a certain polygonal zone

    結合全國自然重砂系統研製，針對分散存放在全國各省的自然重砂數據庫，數據海量、離散、分佈無規律、受計算機配置、網路速度等硬體因素影響的情況下，應用分散式數據庫及并行運算理念，採用區域分片及多線程隊列方法對某個多邊形區域內的離散數據進行檢索與處理。
  10. Firstly, influence factors of generalization of neural network are presented in this thesis, in order to improve neural network ’ s generalization ability and dynamic knowledge acquirement adaptive ability, a structure auto - adaptive neural network new model based on genetic algorithm is proposed to optimize structure parameter of nn including hidden layer nodes, training epochs, initial weights, and so on ; secondly, through establishing integrating neural network and introducing data fusion technique, the integrality and precision of acquired knowledge is greatly improved. then aiming at the incompleteness and uncertainty problem consisting in the process of knowledge acquirement, knowledge acquirement method based on rough sets is explored to fulfill the rule extraction for intelligent diagnosis expert system, by completing missing value data and eliminating unnecessary attributes, discretization of continuous attribute, reducing redundancy, extracting rules in this thesis. finally, rough sets theory and neural network are combined to form rnn ( rough neural network ) model for acquiring knowledge, in which rough sets theory is employed to carry out some preprocessing and neural network is acted as one role of dynamic knowledge acquirement, and rnn can improve the speed and quality of knowledge acquirement greatly

    本文首先討論了影響神經網路的泛化能力的因素，提出了一種新的結構自適應神經網路學習演算法，在新方法中，採用了遺傳演算法對神經網路的結構參數（隱層節點數、訓練精度、初始權值）進行優化，大大提高了神經網路的泛化能力和知識動態獲取自適應能力;其次，構造集成神經網路，引入數據融合演算法，實現了基於集成神經網路的融合診斷，有效地提高了知識獲取的全面性、完善性及精度;然後，針對知識獲取過程中所存在的不確定性、不完備性等問題，探討了運用粗糙集理論的知識獲取方法，通過缺損數據補齊、連續數據的離散、沖突消除、冗餘信息約簡、知識規則抽取等一系列的演算法實現了智能診斷的知識規則獲取;最後，將粗糙集理論與神經網路相結合，研究了粗糙集-神經網路的知識獲取方法。
  11. Topics include : mathematical formulations ; finite difference and finite volume discretizations ; finite element discretizations ; boundary element discretizations ; direct and iterative solution methods

    課程主題有：數學列式、有限差分與有限體積離散、有限元素離散、邊界元素離散、直接與疊代解法。
  12. An effective discritized scheme based on staggered grids is provided by deeply studying the construction and implementation of difference scheme on non - uniform and staggered grids. coupling of velocity and pressure is solved by simple method ; the boundary conditions and relations of velocity and pressure are analyzed in details

    深入研究交錯非均勻網格的差分方案的構造與實施，基於交錯網格提出了有效離散格式；採用simple演算法對速度壓力關系解耦，列舉幾種代數方程的求解辦法，分析並闡述了逐線鬆弛技術。
  13. One is the colorful watermark medical image electronic signature that based on the discrete wavelets transformation. in this method, using color medical images as the original image, a new watermark hidden algorithm, which uses mixed chaos sequences to preprocessing the electronic signature information, is presented. this algorithm transforms the color space, by changing wavelets ’ low frequency coefficient to embed the watermark in

    其中一種是基於離散小波變換的水印彩色醫學圖像電子簽名方案;在這個演算法中，採用彩色醫學圖像為原始圖像，提出利用混合混沌序列對電子簽名信息進行預處理的新的水印隱藏演算法，對真彩圖像進行色彩空間轉換，通過改變小波低頻系數將水印嵌入到小波的低頻帶。
  14. Consequently, a synthesized method is presented in this thesis, which includes time - domain shifting, window - length changing and window - type changing ( the second time - domain sequence lags behind the first one with l points, performing n - point fft analysis on the first sequence and m - point fft analysis on the second one with different windows, and finally correcting peak lines )

    利用這一原理提出通用的離散頻譜相位差校正方法：時域平移+改變窗長+改變窗函數，即第二段時域序列比第一段滯后l點，採用不同窗函數對這兩段時域分別作n點和m點的fft分析。
  15. Nowadays, there are two kinds of implementation methods of chaotic signal generator. one kind is realized by analog line and it is very sensitive to circuit inherent parameters as well as signal recycled error, so it is relatively difficult to realize actually, the other kind is realized by digital line and it can generate well real - time discrete array, so it is more suitable for the application in communication

    目前混沌信號發生器的實現方法有兩種:一種是由模擬電路實現，它對固有參數及信號再生的誤差很敏感，實際實現較困難;另一種是由數字電路實現，它產生的離散時間混沌序列實時性好，更適合在通信中應用。
  16. Based on the point of image - based rendering, and the technology of virtuality and reality combining, it yield the conception of virtual globe and its related thought, and takes the dispersed pixel element mutation as the nucleus, the principle of utilization geometry and graphics, 3d walk around is realized and true sense controls waits has carried on a series of research, has put forward the corresponding mathematical model, and has been in progress the improvement, and has got the better result to the tradition method

    本文從基於圖像生成的角度出發，由虛實結合的構思引出了視球及其相關概念，並以離散的像素變換為核心，利用幾何學和圖形學的原理，在三維漫遊的實現及真實感控制等方面進行了一系列的研究，提出了相應的數學模型，對傳統方法進行了改進，得到了較好的結果。
  17. 3. the thesis brings forward random number sequence shuffling technology in a creative way, it can reduces the linear congruential generator pertinency and discrete grid phenomena prominently. 4

    創造性地提出在遺傳演算法中隨機數序列處理的新方法? ?隨機數序列洗牌技術，有效克服了線性同余發生器產生的隨機數序列相關與離散網格現象。
  18. 4. the smooth condition for discrete series is studied, and some mistakes about the white exponential law is pointed out. the author proposes the modified condition of white exponential law which makes the data to apply the gm model

    4 ?研究了灰色系統理論中的關于離散數列的「光滑性條件」 ，指出其原寺有的「白指數律條件」的局限性，提出了新的修正型白指數律的條件，從而為數據應用灰色系統模型提供了檢驗方法。
  19. You can discretize both numeric and string columns

    數值列和字元串列都可以進行離散化。
  20. In these cases, you can discretize the data in the columns so that you can use the algorithms to produce a mining model

    在此類情況下，可以將列中的數據離散化，以便可以使用演算法來生成挖掘模型。
分享友人
分享到 Line

分享到臉書