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On the Weakenesses of Correlation Measures used for Search Engines' Results (Unsupervised Comparison of Search Engine Rankings)
Search Engines Correlation Measures Search Engine Rankings
2011/7/19
The correlation of the result lists provided by search engines is fundamental and it has deep and multidisciplinary ramifications. Here, we present automatic and unsupervised methods to assess whether...
Life time of correlation between stocks prices on established and emerging markets
Life time of correlation correlation coefficient price history stocks
2011/6/21
The correlation coefficient between stocks depends on price history and
includes information on hierarchical structure in financial markets. It is
useful for portfolio selection and estimation of ri...