函數相似 的英文怎麼說
中文拼音 [hánshǔxiāngsì]
函數相似
英文
functional similarity- 函 : 名詞1. [書面語] (匣; 封套) case; envelope 2. (信件) letter 3. (姓氏) a surname
- 數 : 數副詞(屢次) frequently; repeatedly
- 相 : 相Ⅰ名詞1 (相貌; 外貌) looks; appearance 2 (坐、立等的姿態) bearing; posture 3 [物理學] (相位...
- 函數 : [數學] function函數計算機 function computer; 函數計算器 function calculator; 函數運算 functional operation
- 相似 : 1. (相像) resemble; be similar; be alike 2. (相像處; 類似物) similarity; similitude; analogue
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The main contributions are as follows : ( 1 ) de ( differential evolution ) algorithm is proposed to invert the ocean acoustic parameters in shallow water in order to get faster and more accurate results than ga ( genetic algorithm ) and sa ( simulated annealing algorithm ). also a posteriori probability analysis method is applied to evaluate the uncertainty of inversion results. ( 2 ) maximum likelihood objective functions for broadband mfi are derived according to different conditions
( 2 )根據不同的前提條件,採用似然比的方法推導了寬帶匹配場反演的最大似然目標函數;深入地研究了寬帶匹配場處理中的相干與非相干問題;在分析參數反演的敏感性之後,提出了淺海環境參數寬帶匹配場反演的多步優化策略,並與全參數反演方法進行了性能上的模擬比較。A proof based on the fundamental theorem has no counterpart for functions of several variables.
根據基本定理的證明對于多元函數就沒有相似的東西。Furthermore, due to the symmetry restriction of traditional radial basis function networks ( rbfn ) with gaussian function, the asymmetric gaussian basis function ( agbf ) is proposed to construct the full adaptive agbfn. because the asymmetry gaussian function ' s variability and malleability are higher than the traditional one, the asymmetry gaussian basis function can provide the agbfn which own a higher flexibility and can approach the true result more easily
針對這一問題,文中提出了一種全自適應的不對稱高斯基函數網路( agbfn )結構,網路的基函數採用具有不對稱寬度的偽高斯函數,和常規的高斯函數相比,具有更大的可變性和延展性,從而使得隱層神經元在函數近似上具有更高的適應性,提高了神經網路的學習能力。For micro - cavity semiconductor laser, station model is proposed in this paper and its steady - state and instantaneous characteristics when the coupling efficiency of spontaneous emission into a lasing mode is equal to 1 are analysised. for current noise, sp noise, noise, p noise, as well as current modulation, sp modulation, modulation and p modulation, using small - signal approximation, we derive the laser ' s corresponding transfer functions. and we calculate their signal - to - noise ratio ( snr ) gain in various parameters through frequency domain analysis in the premiss of large input snr
本文對于微腔半導體激光器,提出站模型,能夠較直觀簡潔地分析微腔半導體激光器的穩態和瞬態特性,利用此模型對具有重要實用價值的= 1的微腔半導體激光器進行了討論;對于電流i噪聲、自發發射壽命_ ( sp )噪聲、自發發射因子噪聲、光子壽命_ p噪聲,以及電流調制、 _ ( sp )調制、調制、 _ p調制,在小信號近似下,得到了相應的激光器的傳遞函數;在大信噪比的前提下,對激光器進行了頻域分析,分別計算了它們在不同參數下的信噪比增益,分析了其抗噪聲性能。And the resemblance is pointed out between continuous wavelet transform ( cwt ) and waf. in the course of computing waf, the scaling replica is very important. based on the properties of cwt, three approaches have been proposed for the scaling of a wavelet that has no analytic form
詳細闡述了寬帶信號及系統的三個條件、寬帶系統的回波模型和寬帶模糊度函數的概念,指出了連續小波變換( cwt )與寬帶模糊度函數的驚人相似之處。This method utilizes the distribution property of image intensity. given the false alarm probability, the threshold for likelihood difference can be determined
該方法利用sar圖像的強度分佈特性,根據虛警率確定相鄰區域之間存在邊界的似然差函數的閾值。Evading risk in financial trading market cries for pricing options to a nicety. asian option, as the most flourish options in the finace market, the pricing has been focused on always. the exact pricing formula for the geometric average asian option had existed, but as to the european - style arithmetic average asian option, due to the dependence structure between the prices of the underlying asset, no analytical formula exists. on the hypothesis that the market is frictionless and without transaction costs 、 on the base of b - s ’ s and in the binomial tree model, we provide several algorithms for computing an accurate value of the european - style arithmetic average asian option. following rogers and shi and by jensen ’ s inequality, many different upper and lower bounds are provided ; meanwhile a formula have got by the comonotonicity and approximating the distribution function. all of the algorithms are easy for programming. with the development of computer, more accurater price can be computed quickly. and numerical example proved that these algorithms are very accurate
對于幾何平均亞式期權它的定價相對簡單,已經給出了定價公式。對于算術平均亞式期權,它的未定權益具有軌道依賴特性,一直沒有得到它的定價方程的解析解形式。本文基於對市場是無摩擦且在沒有交易費用的情況下,在b - s模型下,利用二叉樹模型給出了算術平均亞式期權定價方法;並總結了利用jensen 』 s不等式給出的各種不同情況下的上下界;同時應用共單調性和近似分佈函數的方法也給出了算術平均亞式期權價格的近似公式。At the other hand, we can perform the rrpa calculation with the continuum replaced by a set of outgoing single particle resonances, it indicates that the resonances in the continuum play an important role in the description of nuclear dynamical processes, such as collective giant resonances. energies, widths and wave functions of the single particle resonant continuum are determined by solving scattering states of the dirac equation with proper asymptotic conditions for the continuous spectrum in the r ' elativistic mean field theory. the relativistic regular and irregular coulomb wave functions are calculated numerically
在進行相對論無規位相近似計算時將連續譜中所有的正能態用單粒子共振態來代替,並且在計算中採用單粒子共振態的真實寬度,利用這種方法我們計算了核的同位旋標量巨八極共振響應函數,並且和考慮了連續譜中所有正能態貢獻的結果進行比較,計算結果表明,連續譜中只考慮單粒子共振態對核的集體激發的貢獻時,給出的響應函數基本上能夠重現考慮了所有正能態貢獻時的計算結果,這說明了在核的集體激發中,連續譜中主要是單粒子共振態的貢獻。Lastly, we discuss the energy - band structure of ultracold atoms in optical lattice by means of green function method and in addition, procure the superfluid - mott phase transition condition in mean - field approximation which is in agreement with the result in the literature
最後利用格林函數方法討論了光格子中超冷原子的能帶結構,根據mott相存在能隙的判據我們在平均場近似下重新得到superfluid - mott相變條件,該結論與相關文獻一致。The fourth chapter " reseach on fractai structure of stock price " anaiyzed the fractai structure of stock price, deduced the investment function, caiculated the hurst exponent, 3 correlation dimension, and max lyaponov exponent, analyzed the self - similarity, long range dependence, circulation period of stock price and sensitivity of stock price to the initial value, suggested took the exponent characterize fractal instead of variance as instrument to measure risk
第四章分析並檢驗了股票市場的分形混沌特徵,推導了投資函數,計算了表徵股票市場分形特徵的hurst指數,關聯維和最大lyapunov指數,分析了股票價格的自相似性、長期記憶和循環周期,分析了股票價格的波動對初始條件的敏感性,提出中國股票市場具有混沌分形的特性,用傳統的方差法度量股票風險是無效的,必須使用混沌分析能夠理論來刻畫股票收益的風險,建立收益模型。With the use of the average excitation energy approximation and the closure approximation, the solution is reduced to a time - dependent operator acting on the " bare " atomic state
利用平均激發能近似和完備關系,可將此波函數簡化為一個含時的相乘算符作用於無場時的「裸原子」態上。Function present value except that the
函數(現值)相似,只是For structural member, the following assumption may be taken : failure perfect correlation assumption of structural member : when structural member failure, the function restriction that correspondence to the most serious failure mode will failure first ; or when structural member failure, the serious failure mode will be true first
對于結構構件,可以近似採用失效模式全相關假設:構件失效模式全相夫假設:構件夫效時,構件最嚴重失效模式所對應的功能函數或約束首冗破壞;或構件火效時,最嚴重大效模式首先為真。So the likelihood function of the differential phase peaks can be formed as means to identify m - ary psk
於是可利用相位突變峰值的似然函數來識別信號為哪一種進制的psk信號。But difficulty in maths will come forth when meeting high spin particles if we using such method. on base of the characteristic of energy space, we obtained the wavefunctions and geometric phase by the trial function method in this paper. the berry phase of the system are also obtained after an evolution period
文中在絕熱近似下根據自旋粒子能級間隔特點用嘗試波函數法求出了旋轉磁場中高自旋粒子系統的波函數及幾何相位,解決了用一般方法求解時出現高階微分方程的困難。The proposed function has same properties just as the ones of paper [ 1 ], unifies the forms when the intervals have common endpoint or not, avoids the impact of the level and dimension of values and make the extension analysis be more objective, is continuous for all real field but the common one, gets the maximum value at the midpoint, and has more applicability
該初等關聯函數具有與文[ 1 ]初等關聯函數相似的性質,且統一了有公共端點和無公共端點區間類型,能消除量級和量綱的影響,使得可拓優度評價結果更客觀,在除了公共端點外的全體實數域內連續且在中點取得最大值,並有更寬的適用范圍。In this work, we have made an approximate to the one - electronics radial function, namely only the leading term of slater - type orbital ( sto ), which is the same as the modified hydrogen - like wave function, are taken into consideration
在這一工作中,我們對單電子徑向函數作了近似處理,即只取斯萊特型單電子徑向波函數( sto )的領頭項,其形式與類氫離子的徑向函數相似。The autocorrelation function of the pn code is similar to that of the white noise, which has the randomicity. the pn code phase modulation fuze just works on the basis of this characteristic. the fuse, having excellent cut - off performance of the distance and strong anti - jamming capability, is one of the radio fuze of the predominant performance
偽碼引信是利用偽隨機序列的自相關函數類似於白噪聲相關函數的隨機特性而工作的,這種引信距離截止特性好,抗干擾能力強,是一種性能優越的無線電引信。Because of the reason above, a novel pn acquisition method using auxiliary sequence and binary search is proposed. because the cross correlation between auxiliary sequence and spread sequence is linear, some search algorism can be used to estimate the phase of incoming signal quickly without increasing the complexity of system
因為輔助序列與擴頻序列的相關函數近似滿足線性單調性,可以利用快速搜索演算法,如:二分法,對接收信號中擴頻序列的相位進行快速搜索,在保證系統復雜度不變的前提下,降低序列捕獲的時間。Using the function, the relations between dynamic error data comparability and data correlation function are deduced, and the evaluating method that assesses the model ' s prediction error using correlation function ' s relative error is built. the effective prediction space concept is established, on the base of these, this paper deduces two representations " evaluating equation, one evaluates the prediction error and the other evaluates the prediction error in limited space
提出以樣本距離空間范數來描述預報數據間相似程度並定義了相似度函數,推導出動態誤差數據相似度與數據相關函數之間的關系,建立了以相關函數相對誤差來評定模型預報誤差的評定方法,建立了有效預報空間的概念,推導出了預報誤差的評定公式和在有效預報空間中的兩種表示形式。分享友人