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random walk 【數學】隨機游動。

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Time series from stock exchange has the following characteristics . first , it appears to be a random walk but may be not totally random . second , it is easily and almost costlessly available 股市時間序列具有以下兩個特性:首先,它貌似隨機但又好像不完全隨機;其次,它非常容易獲得。

These measures include random walk model , industry model , mean - reverting model , jones and modified - jones models , k - s model , margin model and so on 應計利潤模型主要包括隨機游走預期模型、行業模型、平均數回復模型、瓊斯及其擴展模型、 k - s模型、邊際模型和營運資金模型等。

Solomon ( 1975 ) introduced the concept of random walk in a random environment , proved the existence of the model on the set of integers , and obtained its limit theorems Solomon ( 1975 )引進了隨機環境中隨機游動的概念,在整數集上證明了該模型的存在性,并得到了它的極限定理。

Frb had abandoned the traditional random walk and simple rules , but carried out the neutral rules to achieve the economy growth and price stability with casual steps 美聯儲摒棄傳統的相機抉擇或簡單單一規則,選擇以嚴謹的方式來實現經濟增長與物價穩定的“中性貨幣政策” 。

In this paper , by using monte carlo method with irregular grid random walk in time - space domain the problem of mass concrete transient temperature field was solved 摘要利用求偏微分方程的蒙特卡羅算法,通過在時空域中不規則網格隨機游動來求解大體積混凝土不穩定溫度場。

Wang rongming ( 1993 ) calculated the extinction probabilities for a clas s of random walk in a random environment with the set of non - negative integers as state space 汪榮明( 1993 )求出了狀態空間為非負整數集的隨機環境中隨機游動的滅絕概率,并得到明確的表達式。

( 4 ) for the debate between behavioral models and random walk , the reasons of profitability of strategies with different formation period differ widely ( 4 )有關行為模型與conradandkaul ( 1998 )觀點之爭論:中國股市中不同形成期策略其獲利性因素差異很大。

Problem set 2 : continuum approximations of non - stationary random walks , random walk in a harmonic well , steps with fat tails , saddle - point asymptotics 問題2 :非穩定型隨機漫步的連續極限,具調合井的隨機漫步,具備巨大尾部的漫步,鞍點近似解。

The spectral dimension is estimated by monte cario ( random walk ) method . the calculated results show that mass diffusion in fractal media is non - homogeneous and nonlinear 上述模擬的結果使我們對分形多孔介質中的熱傳輸規律有了更深的了解。

If the market is nonlinear dynamics , then we would have a mistake result by using standard statistic , especially we using random walk model 如果市場是非線性動力系統,那么,使用標準統計分析就會得出錯誤結果,特別是使用隨機游動模型時。

Problem set 3 : asymptotics of percentile order statistics , non - reversing random walk , self - trapping random walk , self - avoiding random walk 問題3 :有序統計百分數的近似、非可逆隨機漫步、自已誘捕隨機漫步、自已避免隨機漫步。

By now , there have been a lot of methods to locate resources , such as flooding , random walk , and search on basis of distributed hash table 目前有很多資源定位方法,如泛洪,隨機漫步,基于分布式哈希表的查找等。

The flow in outlet structure of pressure tunnel is simulated by using monte carlo method with irregular random walking grids in this paper 摘要利用不規則游動網格的蒙特卡羅法對有壓隧洞出口段水流進行了數值模擬。

Extinction probabilities for the generalized random walk in random environments with the set of non - negative integers as state space 求出了狀態空間為非負整數集的隨機環境中廣義隨機游動的滅絕概率。

Emh is established on the following three presuppositions : rational investor , efficient market and random walk process Emh是建立在理性投資者、市場有效和隨機游走過程這三個核心前提假定基礎上的。

Romeijn , h . edwin . “ global optimization by random walk sampling methods . “ amsterdam : thesis publishers , 1992 《隨機漫步取樣方法的整體性最佳化》 ,阿姆斯特丹:論文出版社, 1992 。

Generalied random walk in random environments is the natural generalization of random walk in random environments 隨機環境中廣義隨機游動是隨機環境中隨機游動的自然推廣。

Asymptotic behaviour of the first - arrive time series of one - dimensional nearest - neighbour random walks in random enviroments 隨機環境中1維緊鄰隨機游動首達時漸近性質

On the first - arrival time series of one - dimensional nearest - neighbor random walks in a space - time random environments 空間隨機環境中1維緊鄰隨機游動首達時分布性質