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- W2302493635 abstract "Multifractal theory provides a new spatial analytical tool to describe urban form and growth, but many basic problems remain to be solved. Among various pending issues, the most significant one is how to obtain proper multifractal dimension spectrums. If an algorithm is improperly used, the parameter values will be abnormal. This paper is devoted to drawing a comparison between two OLS-based approaches for estimating urban multifractal parameters. Using observational data and empirical analysis, we will demonstrate how to utilize the double logarithmic linear regression to evaluate multifractal parameters. The OLS regression analysis has two different approaches. One is to fix the intercept to zero, and the other is not to fix it. The case studies show that the advisable method is to constrain the intercept to zero. The zero-intercept regression yields proper multifractal parameter spectrums within certain scale range of moment order, while the common regression results are not normal. In practice, the zero-intercept regression and the common regression can be combined to calculate multifractal parameters. Comparing the two sets of results, we can judge when and where multifractal urban structure appears. This research will inspire urban scientists to employ a proper technique to estimate multifractal dimensions for urban scientific studies." @default.
- W2302493635 created "2016-06-24" @default.
- W2302493635 creator A5002167057 @default.
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- W2302493635 date "2018-02-01" @default.
- W2302493635 modified "2023-10-12" @default.
- W2302493635 title "A COMPARISON BETWEEN TWO OLS-BASED APPROACHES TO ESTIMATING URBAN MULTIFRACTAL PARAMETERS" @default.
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- W2302493635 doi "https://doi.org/10.1142/s0218348x18500196" @default.
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