单词 | random walk |
例句 | What begins as a random walk often ends up taking you somewhere, somewhere that you later realize was exactly where you wanted to go.” Arcade Fire’s Rare Power Shines on Reflektor 2013-10-28T18:41:49Z We meet the “mosquito man,” Sir Ronald Ross, whose study “The Logical Basis of the Sanitary Policy of Mosquito Reduction” became the foundation of the so-called random walk theory. ‘Shape’ Makes Geometry Entertaining. Really, It Does. 2021-05-18T04:00:00Z This motion is called a random walk and is illustrated in Figure 12.21. College Physics for AP Courses 2015-08-12T00:00:00Z Over-interpreting randomness is an occupational hazard when monitoring the random walk of financial markets, while resisting any temptation provides an opportunity for the cognitively savvy investor. Three ways to be more rational this year 2021-12-31T05:00:00Z Allocating too little time to brainstorming might lead either to stagnation or to a “random walk” in which chance plays a greater role than an educated response to changing circumstances. The Power of Scientific Brainstorming 2020-07-23T04:00:00Z These random walks have led to a handful of direct collaborations and many more ideas. Coronavirus diaries: We’ll meet again 2020-05-14T04:00:00Z Worse still, perhaps the very idea of “species maturity” is a misguided analogy, and all we will ever have is history’s rather random walk. We Should Message Extraterrestrial Civilizations, Not Just Listen for Them 2020-03-29T04:00:00Z This type of motion is called a random walk. College Physics for AP Courses 2015-08-12T00:00:00Z Beyond that is kind of a random walk. Transcript: James Stavridis 2019-10-16T04:00:00Z Indrė Žliobaitė and colleagues modelled speciation and extinction using a random walk constrained by resources and uncovered a unimodal 'hat' pattern. Reconciling taxon senescence with the Red Queen’s hypothesis 2017-11-28T05:00:00Z In the currency market, trading was described as a “random walk” by analysts at Citi with no clear trends to follow. Asia stocks pause at peaks, ponder U.S. tax muddle 2017-11-07T05:00:00Z He is famously unconscious of time; a casual conversation with Lonzarich can easily lead to an hours-long random walk through the byways of physics, philosophy, politics and history. A quantum pioneer unlocks matter’s hidden secrets 2017-09-26T04:00:00Z In water, an oxygen molecule makes many more collisions in its random walk and is slowed considerably. College Physics for AP Courses 2015-08-12T00:00:00Z Economists debate whether markets distill expectations about policy or whether they’re closer to a “random walk.” Opinion | The Trump bubble bursts in Moscow’s markets 2017-02-21T05:00:00Z But consider that the phrase “random walk” describes a theory that basically says prices move randomly, and so trying to beat the market is a sucker’s game. Picking a Portfolio With Pokéballs 2016-10-14T04:00:00Z In the currency market, trading was described as a “random walk” by analysts at Citi with no clear trends to follow. Asia stocks pause at peaks, ponder U.S. tax muddle 2017-11-07T05:00:00Z They will send me on a random walk down Wall Street, but with crazy detours to catch Pokémon. My Hands Grip the Wheel Now, but Financial Autopilot Is Coming 2016-07-15T04:00:00Z Each of the potential transitions would non-adiabatically perturb the kinetic energy of a charged antiatom; as noted above, these kicks correspond, approximately, to a random walk in energy. An improved limit on the charge of antihydrogen from stochastic acceleration : Nature : Nature Publishing Group 2016-01-19T05:00:00Z Finally, Dr. Leal’s team created computer simulations of random walks, on the idea that just by wandering at random, the lizards would arrive at home. Mystery of the Lizards That Know the Way Home 2015-07-06T04:00:00Z The seemingly random walk of the magnet was supported by experiments calculating the odds of a tracking tag being expelled at any given time. Starfish Show Tracking Tags Who's Boss [Video] 2015-06-23T04:00:00Z This isn’t the normal finding, which is that exchange rates follow a random walk pattern. Random Walks, PPP And Forecasting Foreign Exchange Rates 2015-02-13T05:00:00Z I tend not to place all that much strength in predictions of short term price movements: too much like a random walk for most prices. Citigroup; Oil's Heading To $20 And Opec's Days Are Over 2015-02-10T05:00:00Z Then again, there’s always the so-called “random walk” theory to investing. How Emerging Market Investing Is Like A Fast-Food Menu 2014-09-04T04:00:00Z Still, the dismal results of the real-world fund managers were very close to what Burton G. Malkiel, the Princeton finance professor, once described as “a random walk.” Heads or Tails? Either Way, You Might Beat a Stock Picker 2014-07-26T04:00:00Z So until new information comes in, markets move unpredictably – what’s known as a random walk. Facebook worth 128 times its profits? That's beyond optimistic – it's euphoric 2014-07-25T04:00:00Z From a theoretical perspective, this is a much more appealing alternative to the random walk for it takes into account that PPP holds over long-term horizons. Random Walks, PPP And Forecasting Foreign Exchange Rates 2015-02-13T05:00:00Z What would need to be done is either something small scale, something where the profits made were of the order of what is made in the random walk of short term market movements. BBC Server Breached Over Christmas, Russian Hacker Tries To Sell Access 2013-12-30T15:30:00Z A random walk look at some ETFs as they compare with similar mutual funds trading in a similar market. How Emerging Market Investing Is Like A Fast-Food Menu 2014-09-04T04:00:00Z It is one type of random walk, in which each successive move is chosen randomly and uninfluenced by any previous move. Hunter-gatherer humans join insects, sharks and other animals in doing the Lévy walk 2013-12-29T00:31:03Z The random walk is simply a statistical formulation of a series of random “steps” on a “walk”. The Dancer. At Taksim Square. 2013-06-28T13:45:00.453Z Programs used for “quantum searching” are based on quantum random walks. I, Quantum Robot 2013-03-18T12:45:05.427Z The result indicates that the "random walk hypothesis", popularised in economist Burton Malkiel's book A Random Walk Down Wall Street, is perhaps truer than we thought. Investments: Orlando is the cat's whiskers of stock picking 2013-01-13T06:59:01Z For example, every CMO knows that lead conversions and sales funnels are extremely loose approximations of a customer’s true random walk to purchase. The Social CXO | An Executive's Guide to Social Business 2013-01-08T11:15:51Z In the NTB, the dynamics of ecologically equivalent taxa are modeled as random walks. [Technical Comment] Comment on “Global Correlations in Tropical Tree Species Richness and Abundance Reject Neutrality” 2012-06-28T18:25:19.730Z But the day to day fluctuations in the stock value, taken in aggregate, are best modeled with a random walk. The Dancer. At Taksim Square. 2013-06-28T13:45:00.453Z "If you do this as a random walk, you're doomed to failure because you only have so much time and the clock is ticking." Robotic probe to seek Martian life with new focus 2012-06-11T17:24:36Z Surprisingly, our data lacked the hallmarks of a classic condensed polymer: It resembled neither a random walk, nor its condensedpolymer cousin, the highly knotted equilibrium globule. [Essay] GE Prize Essay: Zoom! 2011-12-01T18:56:35.137Z "Mortgage rates follow what we call a random walk, and don't bounce back from lows like most people assume," he says. Time to Refinance? Not So Fast 2011-10-07T17:59:26Z He haunted the house for an hour, filling up the intervals of fruitless inquiry with little random walks round the neighbourhood, determined not to return home to his wife without news of their child. The Grandchildren of the Ghetto 2011-02-12T03:00:35.663Z Underlying all these processes is the “random walk.” The Dancer. At Taksim Square. 2013-06-28T13:45:00.453Z He found that over time share prices tended to follow a “random walk”. Economics focus: Data birth 2010-11-18T11:27:00Z Continuing my random walk, I next paused in a low part of the woods, where the larger trees began to give place to a thick second growth that covered an old Bark-peeling. A Book of Natural History Young Folks' Library Volume XIV. He haunted the house for an hour, filling up the intervals of fruitless inquiry with little random walks round the neighborhood, determined not to return home to his wife without news of their child. Children of the Ghetto A Study of a Peculiar People For all Little Rivers knew that she was given to random walks and rides. Over the Pass Diffusion, at its root, is powered by random movement, and many modelers will use a random walk to build their computations. The Dancer. At Taksim Square. 2013-06-28T13:45:00.453Z For example, if step size is variable in a normal distribution, then you can use a random walk to model fluctuations in financial market data over time. The Dancer. At Taksim Square. 2013-06-28T13:45:00.453Z Human behavior, at various scales, from cellular activity to large social groups, can also be approximated by a random walk. The Dancer. At Taksim Square. 2013-06-28T13:45:00.453Z First named by Karl Pearson at the dawn of the 20th century, the random walk is essentially a mathematical tool that is now one of the most widely borrowed principles from statistics. The Dancer. At Taksim Square. 2013-06-28T13:45:00.453Z |
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