碼向量 的英文怎麼說

中文拼音 [mǎxiàngliáng]
碼向量 英文
code vector
  • 碼 : Ⅰ名詞（表示數目的符號或用具） a sign or object indicating number; code Ⅱ量詞1 （指一件事或一類的...
  • 量 : 量動1. （度量） measure 2. （估量） estimate; size up
  1. Class use a chaining mode called cipher block chaining, which requires a key and an initialization vector to perform cryptographic transformations on data

    類派生的類使用一種稱為密碼塊鏈接（ cbc ）的鏈接模式，該鏈接模式需要密鑰和初始化向量才能執行數據的加密轉換。
  2. The block cipher classes provided in the base class library use a chaining mode called cipher block chaining, which uses a key and an initialization vector to perform cryptographic transformations on data

    基類庫中提供的塊密碼類使用稱作密碼塊鏈（ cbc ）的鏈模式，它使用一個密鑰和一個初始化向量（ iv ）對數據執行加密轉換。
  3. Predictive coding based on support vector machine

    基於支持向量機的圖像預測編碼演算法
  4. In order to prevent encrypting system from being broken, the variant non - super increasing sequence is used as the trapdoor knapsack vector to improve the security of public key cryptosystems

    為防止破譯，本文採取變形的非超遞增序列作為陷門背包向量，來提高背包公鑰密碼體制的安全性。
  5. Better segmentation effect can be attained by coding gray levels of pixels as eigenvector, taking advantage of histogram entropy principles function as fitness function, adopting ranking selection operation, making use of arithmetic crossover and mutation at a certain probability, combining with clustering analysis to initialize clustering center of the population to segment cells image with genetic algorithm

    以像素的灰度值為特徵向量進行編碼，利用直方圖熵法準則函數作為適應度函數，採用基於排名的選擇操作，以一定的概率進行算術交叉和變異，並結合聚類分析設定種群的聚類中心對細胞圖像進行遺傳聚類分割。
  6. In order to solve the estimation problem of pn sequences itself, a code recovery algorithm based on subspace tracking is proposed

    該演算法通過應用past技術，求出兩個主特徵向量，實現擴頻碼序列的恢復。
  7. The main contributions of the second part of this dissertation are focused on the cryptographic properties of logical functions over finite field, with the help of the properties of trace functions, and that of p - polynomials, as well as the permutation theory over finite field : the new definition of chrestenson linear spectrum is given and the relation between the new chrestenson linear spectrum and the chrestenson cyclic spectrum is presented, followed by the inverse formula of logical function over finite field ; the distribution for linear structures of the logical functions over finite field is discussed and the complete construction of logical functions taking on all vectors as linear structures is suggested, which leads to the conception of the extended affine functions over finite field, whose cryptographic properties is similar to that of the affine functions over field gf ( 2 ) and prime field fp ; the relationship between the degeneration of logical functions and the linear structures, the degeneration of logical functions and the support of chrestenson spectrum, as well as the relation between the nonlinearity and the linear structures are discussed ; using the relation of the logical functions over finite field and the vector logical functions over its prime field, we reveal the relationship between the perfect nonlinear functions over finite field and the vector generalized bent functions over its prime field ; the existence or not of the perfect nonlinear functions with any variables over any finite fields is offered, and some methods are proposed to construct the perfect nonlinear functions by using the balanced p - polynomials over finite field

    重新定義了有限域上邏輯函數的chrestenson線性譜，考察了新定義的chrestenson線性譜和原來的chrestenson循環譜的關系，並利用一組對偶基給出了有限域上邏輯函數的反演公式；給出了有限域上隨機變量聯合分佈的分解式，並利用隨機變量聯合分佈的分解式對有限域上邏輯函數的密碼性質進行了研究；給出了有限域上邏輯函數與相應素域上向量邏輯函數的關系，探討了它們之間密碼性質的聯系，如平衡性，相關免疫性，擴散性，線性結構以及非線性度等；討論了有限域上邏輯函數各類線性結構之間的關系，並給出了任意點都是線性結構的邏輯函數的全部構造，由此引出了有限域上的「泛仿射函數」的概念；考察了有限域上邏輯函數的退化性與線性結構的關系、退化性與chrestenson譜支集的關系；給出了有限域邏輯函數非線性度的定義，利用有限域上邏輯函數的非線性度與相應素域上向量邏輯函數非線性度的關系，考察了有限域上邏輯函數的非線性度與線性結構的關系；利用有限域上邏輯函數與相信息工程大學博士學位論文應素域上向量邏輯函數的關系，揭示了有限域上的廣義bent函數與相應素域上的廣義bent函數的關系，以及有限域上的完全非線性函數與相應素域上向量廣義bent函數之間的關系;給出了任意有限域上任意。
  8. If a document is viewed as a combination of basis topics, and every basis topic is represented by a related vector, then it can be categorized as belonging to the topic represented by its principal vector. thus, nmf can be used to organize document collections into partitioned structures or clusters directly derived from the nonnegative factors

    如果將一篇文檔看作是由許多文本主題組合而成，而文本主題與語義空間的特徵向量相對應的話，則我們可以直接根據nmf演算法所提取的特徵向量及相對于特徵向量各文檔的編碼向量將文本集劃分成不同的類。
  9. A simple block cipher that does not use an initialization vector will encrypt the same input block of plain text into the same output block of cipher text

    ，一個不使用初始化向量的簡單塊密碼將把相同的明文輸入塊加密為同樣的密文輸出塊。
  10. The simulation shows that under the fast fading channel circumstance, the wrls - svm channel estimation can acquire the high error performance

    模擬結果表明，在快衰落通道條件下，小波遞歸最小二乘支持向量機導頻通道估計方法可以獲得較好誤碼性能。
  11. Different from previous document clustering method based on nmf, our methods try to discover both the geometric and discriminating structures of the document space in an unsupervised manner, companied with high accuracy in acceptable computationally expensive

    與基於nmf演算法的文本聚類不同，我們的演算法力求以無監督的方式，在時間復雜度允許的范圍內，找到更適合於分類操作的數據向量間的幾何局部特徵向量及相應的各文檔的編碼向量。
  12. Different from other rank reduction methods, such as pca ( principal component analysis ) and vq ( vector quantization ), nmf ( nonnegative matrix factorization ) can get nonnegative, sparse basis vectors which make possible of the concept of a parts - based representation

    與pca （主分量分析）和vq （矢量量化）等降維演算法不同， nmf （非負矩陣分解）演算法能夠分解出非負的，稀疏的特徵矩陣和編碼矩陣，能夠提取原始數據向量的局部特徵，使基於局部特徵進行分類的聚類演算法更容易實現。
  13. It can exactly get the very motion vector. because of its large computational complexity, people tried many other methods

    運動向量估計在編碼過程中占運算量很大的部分，比重是50 %以上。
  14. It is believed by these algorithms that very good matches are likely to be found in the vicinity of reasonably good matches. although this assumption might not be necessarily true, it is useful for reducing the computation as the search can be broken down into stages where the algorithm successively narrows down on the regions of good matches. there are a large number of algorithms that make this assumption and these may be classified as algorithms based on the principle of locality

    目前用於計算運動向量的快速搜索法經常因為陷入局部最小而不能準確的計算到運動向量或者計算量過大讓人不能接受，提高運動向量估計的計算速度對于實時視頻壓縮編碼有著重要的意義，更重要的是要在保證估計精確度的前提下提高提高運動向量估計的計算速度，常見的搜索法往往不能在陷入局部最小和計算量上找到一個合適的平衡點。
  15. This paper research the mpeg - 4 standard first and realize the encoder and decoder of video of mpeg - 4. then the paper emphasize two key techniques in mpeg - 4 encoder : motion estimation and sprite encode. motion estimation takes the largest time in all parts of mpeg - 4 encoder. the paper concluded some typical me techniques, research and realize the mvfast arithmetic whice is recommend by iso, then improved mvfast by considering the temporal candidate motion vector and adjustal thresholds

    然後，本論文重點研究了mpeg - 4編碼過程中兩項關鍵技術：運動估計和背景圖像編碼。運動估計是編碼過程中最重要，耗時最長的部分。本論文總結了常見的運動估計演算法，深入研究並實現了iso推薦的運動估計優化演算法mvfast ，在此基礎上，引入了時間參考運動向量和可調的門限參考值，對mvfast演算法進行了改進。
  16. This article, aiming at the specialties of rmb currency image, puts forward a new method using linear transform of image gray to diminish the influence of the background image noises in order to give prominence to edge information of the image. then the edge characteristic information image is obtained by edge detecting using simple statistics. by dividing the edge characteristic information image in the width direction into different areas, getting the number of the edge characteristic points of different areas as input vectors to random masks and optimized by ga

    文中提出了利用圖像灰度線性變換來抑制背景圖案噪聲的影響，突出圖像邊緣信息；然後採用簡單統計法進行邊緣檢測，得到邊緣特徵信息圖；最後通過對邊緣特徵信息圖在寬度方向上進行均勻劃分成不同的區域，統計不同區域的邊緣特徵點的數目作為神經網路的初始輸入向量，對初始輸入向量用隨機掩碼處理和遺傳演算法進行優化得到最終輸入向量，通過三層bp神經網路分類器進行分類，達到了人民幣識別的目的。
  17. Take european dvb - s standard applied to various satellite broadcast for example, the channel coding structure charts is established. the theory of modulation mode of qpsk and forward error correct including rs coding, convolutional coding, energy dispersal and interleaving are reseached. 4

    以歐洲的dvb - s適用於多種衛星廣播系統的標準為例，建立了通道編碼的結構圖，對數字視頻廣播中的前向糾錯（包括了rs碼，卷積碼、能量擴散和交織技術）和調制方式四相相移鍵控調制進行了研究。
  18. A construction of authentication codes with arbitration from subspace of vector space over finite fields is presented, the parameters of the code are computed

    摘要利用有限域上向量空間的子空間構作了一個具有仲裁的認證碼，計算了這個碼的參數。
  19. The source code is presented next. note that if the light is a directional light, the vector with the first three components is normalised to save time latter

    函數的源代碼如下。注意如果光源是方向光，向量的前三個部分將被歸一化，來節省時間。
  20. The paper makes great efforts on the software optimization of evrc vocoder. based on the understanding of tms320c64xx cpu structure, we do deeply - optimization on the loop which appear usually in voice signal processing, and this improve the utility ratio of cpu and the parallelity degree of cpu function cell. at the same time, we utilize the bit - exact test to test the fixed - point evrc vocoder with the test vectors of tia / eia / is - 718, which improve the robustness of the vocoder

    本文圍繞定點evrc聲碼器的軟體優化，做了大量的工作，在充分理解tms320c64xxcpu結構的基礎上，針對語音信號處理中大量出現的循環運算進行了深度優化，大大提高了cpu的利用率以及cpu功能單元的并行程度，同時，我們還用tia / eia / is - 718的測試向量對定點evrc聲碼器進行了嚴格比特對準測試，提高了聲碼器的魯棒性。
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