random walk

基本解釋

Based on the numerical weather prediction model and automatic weather station data, random-walk particle-puff model was used to simulate the emergency response to atmospheric accident.
基于數(shù)值天氣預(yù)報(bào)模式和自動氣象站觀測資料，采用隨機(jī)游走粒子-煙團(tuán)模式對天津市突發(fā)事故條件進(jìn)行應(yīng)急示蹤模擬試驗(yàn)。
Random-walk filter is widely used in Bit Synchronizer of modern telemetry system and other digital communication systems in order to enhance anti-jamming ability and reliability of a system.
在現(xiàn)代遙測系統(tǒng)和其它相關(guān)的數(shù)字通信系統(tǒng)的碼同步器中廣泛采用了隨機(jī)徘徊濾波器技術(shù)以提高電路的抗干擾能力和系統(tǒng)工作的可靠性。
Fourth, some of the five-effective use of market theory and its testing method random-walk test to verify the effectiveness of China's foreign exchange market, and then analyze the test results.
第四、五部分運(yùn)用有效市場理論及其檢驗(yàn)方法—隨機(jī)游走檢驗(yàn)法，以人民幣對美元、日元和港幣的匯率進(jìn)行檢驗(yàn)，以驗(yàn)證中國外匯市場的有效性，并對檢驗(yàn)結(jié)果進(jìn)行分析隨后。

When you look at a random walk you have the intuitive impression that you can extrapolate it -that it doesn't look like -you can't believe it's really random, but the reason you can't is because you overweigh the probability of certain things that caught your attention.
當(dāng)人們觀察隨機(jī)漫步序列時會有直觀印象,并可以以此類推,雖然這看起來并不像...,人們不會覺得這是完全隨機(jī)的,之所以如此,是因?yàn)?人們過分高估了特定事物發(fā)生的可能性,這吸引了人們的注意
耶魯公開課 - 金融市場課程節(jié)選

To the dismay of active equity managers, the ranks of the random-walk converts are swelling all the time, especially in the United States where passive managers now handle most of the shares in public-sector pension funds.
ECONOMIST: Can you beat the blindfolded monkey?
Authors Guofo Zhou and Yingzi Zu use some complex math based on the random-walk theory to show that the odds of watching half your liquid net worth evaporate are roughly similar to those of another major life event: death.
FORBES: We Can't Avoid Another Market Crash
He made his big splash in 1973 with his best-selling takedown of stock-picking, A Random Walk Down Wall Street, in which he illustrated the futility of accurately predicting future stock prices, noting how a blindfolded chimpanzee throwing darts at the stock page of a newspaper could pick winners as well as a Wall Street professional.
FORBES: Burton Malkiel Advises Running From Bonds Into Dividends, Emerging Markets

a mathematical model used to describe physical processes, such as diffusion, in which a particle moves in straight-line steps of constant length but random direction