random walk

基本解释

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.
基于数值天气预报模式和自动气象站观测资料，采用随机游走粒子-烟团模式对天津市突发事故条件进行应急示踪模拟试验。
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.
在现代遥测系统和其它相关的数字通信系统的码同步器中广泛采用了随机徘徊滤波器技术以提高电路的抗干扰能力和系统工作的可靠性。
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、五部分运用有效市场理论及其检验方法—随机游走检验法，以人民币对美元、日元和港币的汇率进行检验，以验证中国外汇市场的有效性，并对检验结果进行分析随后。

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.
当人们观察随机漫步序列时会有直观印象,并可以以此类推,虽然这看起来并不像...,人们不会觉得这是完全随机的,之所以如此,是因为,人们过分高估了特定事物发生的可能性,这吸引了人们的注意
耶鲁公开课 - 金融市场课程节选

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