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We compared the movements of Aquilonastra anomala sea stars to three random walk models (Brownian motion, Levy walks, and correlated random walks) by examining the sea stars' step length and turn angle distributions.
Semantic relations among words uses two separate random walk algorithm to estimate candidate confidence.
each data node should launch multiple random walks according to the storage nodes n and the degree distribution.
The random walk theory was first brought to light by the discrete approach of Einstein-Smoluchowski, and it consists in treating Brownian motion as a discrete random walk.
X, d) is called transient if there is R > 0 such that the random walk starting at [x.
A more restrictive random walk model requires independence involving higher conditional moments like the variance, skewness, and kurtosis of the probability distribution of price changes.
Random Walk Hypothesis (RWH) states that it is not possible to predict future prices based on the past price movements and it is highly unlikely for anyone to earn profits consistently over time.
Let us start our discussion about Continuous Time Random Walk (CTRW) and different regimes by performing a review of some aspects of the CTRW approach.
This means that stock price can be defined as a random walk (RW) process.
It also implies that the parameters of prices formation do not vary if the analysis frequency is changed--or that the spreads between coefficients can be described as pure random walk processes: