Kendall Rank Correlation Let (X1, Y1), · · · , (Xn, Yn) be a bivariate random sample of size n. The Pearson correlation coefficient provides an optimal measure of the degree of association between the X’s and the Y ’s when the sample is drawn from a bivariate normal distribution. The Pearson correlation coefficient is reasonably robust for many other distributions as well. The Kendall correlati...

We apply the Artificial Immune System (AIS) technology to the Collaborative Filtering (CF) technology when we build the movie recommendation system. Two different affinity measure algorithms of AIS, Kendall tau and Weighted Kappa, are used to calculate the correlation coefficients for this movie recommendation system. From the testing we think that Weighted Kappa is more suitable than Kendall t...

For a given bivariate survival function F, we study the relations between the set of the level curves of F and the Kendall distribution. Then we characterize the survival models simultaneously admitting a specified Kendall distribution and a specified set of level curves. Attention will be restricted to exchangeable survival models. 2009 Elsevier Inc. All rights reserved.

Global warming is a result of the greenhouse effect caused by gases released into atmosphere; It usually expressed as an increase in measured average temperatures. In addition to this, extreme weather events such droughts, floods, and severe hurricanes become more frequent, specified severe. The effects global climate change on hydrological meteorological variables are increasing day day. There...

http://dx.doi.org/10.1016/j.eswa.2013.12.050 0957-4174/ 2014 Elsevier Ltd. All rights reserved. ⇑ Corresponding author. Tel.: +44 7873729666, +966 506620227. E-mail addresses: [email protected], [email protected] (M. Maashi), [email protected] (E. Özcan), graham.kendall@ nottingham.edu.my (G. Kendall). 1 Tel.: +6 (03) 8924 8306. Mashael Maashi a,⇑, Ender Özcan , Graham ...

The tau neutrino is a neutral third generation lepton contained within the Standard Model Family Several experiments have been studying the properties of the tau neutrino nevertheless it has yet to be directly observed Several di erent methods that can allow one to study the mass of the tau neutrino are presented in this review The measurements of the lifetime and magnetic moment of the tau neu...

The expressions of MMP2, -7, -9, -13 and TIMP1, -2, -3 were examined in biopsies and cell lines of head and neck squamous cell carcinomas (HNSCC) to determine the association between the expression profile and TNM-staging of the primary. The expressions of MMP2, -7, -9, -13 and TIMP1, -2, -3 were analyzed in 30 HNSCC biopsies, 7 HNSCC cell lines and 1 keratinocyte cell line using RT-PCR. Negati...