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The large efforts that are presently undertaken in optical redshift surveys and X-ray surveys of clusters of galaxies will make them increasingly important tracers for the study of the large scale structure in the Universe. Compared to galaxies, clusters are very =“biased” objects and therefore provide a different statistical view on the density distribution. In the present paper we explore how information...
A crucial distinction between different classes of complexity measures is found to consist in their statistical structure. While first-order statistics always provides one or another kind of a measure of randomness, second-order (meta-) statistics provides more subtle measures of complexity. An example of a second-order measure is constructed and applied to specific cases. Some formal and conceptual...
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