random walk

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random walk

[′ran·dəm ′wȯk]
(mathematics)
A succession of movements along line segments where the direction and possibly the length of each move is randomly determined.
References in periodicals archive ?
The differential error regression results for random walk with drift also differ from the modified Theil inequality coefficients that indicated the random walk with drift model as the superior model for both commercial and industrial property values.
The regional structural econometric model (RSEM) is also benchmarked against random walk and random walk with drift benchmarks using the modified Theil inequality coefficients and error differential results.
Modified Theil Inequality Coefficients: Regional Structural Econometric Model to Random Walk and Random Walk with Drift
Modified Theil inequality coefficients results between the regional structural econometric model (RSEM) and random walk and random walk with drift benchmarks are in Table 2.
The differential error regression results reflect that the RSEM is the most accurate and superior model for both commercial and industrial property values when compared to the random walk and the random walk with drift benchmarks.
Modified Theil Inequality Coefficients: Univariate ARIMA Model to Random Walk and Random Walk with Drift
Modified Theil inequality coefficient results using the standard Box-Jenkins equations versus random walk and random walk with drift benchmarks are shown in Table 3.
The differential error regression results for the ARIMA model compared to the random walk and random walk with drift benchmarks can be found in Tables 3.
Modified Theil Inequality Coefficients: Trend Model RMSEs to Random Walk and Random Walk with Drift
Modified Theil Inequality Coefficients results between the trend model and random walk benchmarks and the random walk with drift are in Table 4.
For the random walk with drift model, the trend model outperforms that model 13 of the 14 modified inequality coefficients greater than one, with 7 out of 7 steps for commercial property values and 6 out of 7 steps for industrial property values.
Differential Error Regression Results: Trend Model Forecasts Errors Compared to Random Walk and Random Walk with Drift Benchmarks