mean vector 中文意思是什麼
mean vector
解釋
均值向量-
On the other hand, it is indicated that the velocity field consists of a depth - independent inertial oscillation and a time - mean shear flow, which can be obtained by subtracting the inertial oscillations time mean in one inertial period. the hodograph of the velocity vector of time - mean flow at the different depths consists of a ekman spiral, and the surface velocity is 30. 3 ? to the right of the wind
一維模式的流場結果表明，混合層中的流場是由慣性波動與時間平均流兩部分疊加而成，且通過時間平均消去慣性波動后得到平均流，其不同深度的流速矢量構成一ekman螺旋，表層流速矢量相對風向右偏了30 . 3 』 。 -
Upper - air vector mean wind
高空平均矢量風 -
Results the number of myocardial and brain and opioid receptors significantly increased, and they were significantly associated with the decreased hemodynamic parameters such as mean arterial pressure ( map ), left intraventricular systolic pressure ( lvsp ), the maximal rate of the change of intraventricular pressure ( dp / dtmax ) and the area of p - dp / dt vector loop ( lo )
結果創傷失血性休克后，大鼠心臟和腦和阿片受體數目明顯升高，親和力無明顯變化，心臟和腦的和阿片受體數目升高與創傷失血性休克后大鼠血流動力學指標下降呈顯著負相關。 -
Firstly, we have put forward a mathematic form ? interest vector - to express the user ' s interest and have given a formula to calculate quantificationally the interest degree of interest item. secondly, we apply the method of reinforcement learning to intelligent learning agent to make it leam the user ' s interest more precision, more quickly and more efficiency, to make it discover the divert of the user ' s interest in time. thirdly, we have developed a mean of information search and filtrate on user ' s interest
這些研究工作主要體現在：提出用戶興趣的數學表示形式? ?興趣向量，並提出定量地計算用戶對興趣項的興趣度的計算方法；提出採用強化學習演算法，使智能學習agent能夠更準確，更快速和更高效地學習到用戶的興趣和及時發現用戶興趣的轉移；提出面向用戶興趣的信息搜索和信息過濾方法；提出一種基於對象的agent編程模式，也稱為用擴充oo建模技術或方法學的適用性來設計agent系統。 -
Then, in order to reduce the coding time of each image vector, a fast algorithm based on mean - order - search is proposed. the simulation results of this algorithm show that its coding speed is twenty times faster than that of full search algorithm ( fs ), but its reconstructed image is badly ruined
其次，為減少每個矢量的編碼時間，提出一種基於均值排序碼書的快速搜索演算法，測試結果顯示，該演算法編碼速度是窮盡搜索演算法的二十多倍，但是恢復圖像的質量大大地降低了。 -
To conquer the problem of acquisition high effectiveness in analog circuit fault imformation, wavelet transform was researched in this paper to preprocess the fault signals. meanwhile, bp neural network diagnosis method based on wavelet transformation was proposed, this method can abstract fault feature effectively and decreases the dimension of imput vector. by this mean, the construct of neural network can be simplified and training time was economized, then the recognize ability of fault type was improved also
為解決模擬電路的故障信息高效獲取難題，本文採用小波變換作為故障信號的預處理器，研究了基於小波變換預處理的bp網路故障診斷方法，該法能在有效提取故障特徵的同時，降低輸入信息的維數，從而進一步簡化了神經網路的結構，減少了其訓練時間，提高了辨識故障類別的能力。 -
This paper contains three chapters. we discuss the pinching problems on the length of the second fundamental form of compact space - like submanifolds mn with unit parallel mean curvature vector in the de sitter space spn + p. in particular, a sufficient condition for mn with constant scalar curvature to be totally umbilical is given
討論desitter空間s _ p ~ （ n + p ）中具有平行的單位平均曲率向量的緊致類空子流形m ~ n的第二基本形式長度拼擠問題，給出了具有常數量曲率的這種子流形是全臍球面的一個充分條件。 -
Submanifolds with parallel mean curvature vector in local symmetric spaces
局部對稱空間中具有平行平均曲率向量的子流形 -
In the third second, we study a closed oriented submanifold with parallel mean curvature vector field in a sphere. let s = s - nh2. we fist obtain a pinching theorem on 5
第三節中研究了歐氏球面中具有常平均曲率向量子流形，獲得兩個結果，其中一個結果推廣了h -
Some pinching theorems about totally real pseudo - umbilical submanifolds with parallel mean curvature vector becoming totally real and totally umbilical submanifolds are obtained by choosing a suitable frame ? eld
通過選取合適的活動標架，獲得具有平行平均曲率向量的全實偽臍子流形成為全實全臍子流形的若干pinching定理 -
In the second part, we investigate the compact submanifolds m with the parallel isoperimetric section in the real space forms rm ( c ) and prove that if there exists a parallel isoperimetric section on m, and the sectional curvature of m is always greater than zero, then m is contained in a hyper - sphere ; and get that the gauss curvature of the compact surfaces m with constant mean curvature in constant curvature space r4 ( c ) is always greater than zero, then m is a totally geodesic surface or a sphere, where an isoperimetric on m means a unit normal vector field defined globally on m with m1 ( ) = constant
（ 2 ）研究了實空間形式r ~ m （ c ）中具有平行等參截面的緊致子流形m ，證明了具有一平行等參截面的子流形m ，如果m的截面曲率恆正，則m包含在r ~ m （ c ）的一個超球面內；對于常曲率空間及r ~ 4 （ c ）中具有常平均曲率的緊致曲面m ，如果m的高斯曲率處處大於零，則m或為r ~ m （ c ）中的全測地曲面或為一球面。這里m上的等參截面是m上整體定義的單位法向量場，使得m關於它的平均曲率m _ 1 （ ）是常數。 -
Based on the analysis of image wavelet transformation and the space / frequency distributing characteristics of different subbands " coefficients, this dissertation fully exploits the following theories and methods : scalar quantization, vector quantization, trellis coded quantization, trellis coded vector quantization, vector classification, codebook expansion and weighted mean square error rule basing mankind visual characteristics, etc. from different angles of information amalgamation, it develops several innovative algorithms of image compression and coding, gives their realization schemes, and makes plentiful simulation tests
本文在分析了圖像小波變換的原理和子帶系數空間及頻率分佈特點的基礎上，充分利用標量量化、矢量量化、網格編碼量化、網格編碼矢量量化、矢量分類、碼書擴展和基於人眼視覺特性的加權均方誤差準則等思想和方法，從信息融合的不同角度展開了對小波圖像的壓縮編碼研究，同時也討論了這些方法在靜止圖像量化中的具體應用。 -
Particular study of mean shift algorithm leads to an improvement of it : we change the bandwidth parameter h from a scalar to a vector
通過對mean - shift跟蹤演算法的詳細分析，提出了將原演算法中單一的帶寬參數改為矢量參數的改進方案。 -
Review the principles, development and state - of - art techniques of statistical learning theory and support vector machine. in the mean time, the concepts of industrial inferential measurement are also briefly introduced. 2
通過閱讀大量的中英文文獻，對統計學習理論、支持向量機的理論發展、基本概念和研究方向做了比較系統完整的闡述。 -
After three round consultations, the model of comprehensive assessment on flood impact was set up, which included six first rank indicators and twenty - four second rank indicators. the mean value of every indicator is regarded as its primary weight. among first rank indicators, direct casualties resulted from flood and economic loss in flood have the largest weight ( 0. 2123, 0. 1807 ) ; increases of diseases incidence and excess mortality rate have the similar weights ( 0. 1715, 0. 1745 ) ; spiritual injured and psychological effects have the least weight ( 0. 1038 ) ; the weight of epidemic focus expansion and infectious vector spreading is 0. 1572
最終的綜合評價指標體系包含洪災導致的直接傷亡、災後患病情況的變化、災后死亡情況的變化、災后精神和心理狀況的變化、災后疫源地和病原媒介的變化、洪災導致的經濟損失6個一級指標和24個二級指標，一級指標中直接傷亡和災后的經濟損失的權重最大，分別為0 . 2123和0 . 1807 ，患病情況的變化和死亡變化兩方面的權重相差較小，分別為0 . 1715和0 . 1745 ，災后精神和心理狀況的變化的權重最小為0 . 1572 。 -
Monthly normals of vector mean wind at standard levels at 00 utc 1961 - 1990
協調世界時零時各標準層的正常月平均矢量風1961 - 1990 -
According to minimum mean absolute difference criteria ( mad ), our paper uses three - step search algorithm to get the block vectors in two sequential images. main direction of object motion could be obtained by classifying and the average vector on main direction is the vector of whole object. this thesis starts with an introduction of the motion analysis
根據最小平均絕對差值（ mad ）準則，利用三步搜索演算法，計算出相鄰兩幀視頻圖象中各子塊的運動矢量，該演算法通過對運動矢量場中的運動矢量進行統計、分類，找到物體運動的主要方向，而主運動方向上的平均運動矢量就是物體運動的整體矢量。
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