The existence of global warming is common knowledge. However, it can be predicted that there may cooling zones worldwide based on the mechanism terrestrial biophysical processes. Here, Theil–Sen median trend, Mann–Kendall trend test method, continuous wavelet transformation, and Hurst exponent were used to study trends, abrupt change times, periodicity, future sustainability temperature changes...

Understanding the relationship of hydrothermal conditions to vegetation changes is conducive revealing feedback mechanism connecting climate variations and vegetation. Based on methods Theil–Sen median analysis, Mann–Kendall trend test, this research investigated spatiotemporal dynamics in Central Asia using Normalized Difference Vegetation Index (NDVI) grid data from 1982 2015. Further, contri...

Slope selection, i.e. selecting the slope with rank k among all ( n 2 ) lines induced by a collection P of points, results in a widely used robust estimator for linefitting. In this paper, we demonstrate that it is possible to perform slope selection in expected O(n·log2 n) time using only constant extra space in addition to the space needed for representing the input.

Fırtınalar, kıyılarda erozyona sebep olup kıyı çizgisini değiştirmekte, yapılarına ve deniz taşıtlarına ciddi zararlar verip can mal kayıplarına neden olmaktadır. Küresel iklim değişikliğinin fırtına karakteristikleri üzerinde etkili olduğu bilinmektedir. Bu çalışmada Karadeniz kıyıları boyunca 1979-2019 yılları arasındaki fırtınaları incelenmiştir. Bunun için spektral dalga modelinden elde edi...

The most limiting weakness of the human development index (HDI) is that it looks only at average achievements and does not take into account the distribution of human development within a country or population subgroups. All previous attempts to capture inequality in the HDI have also used aggregate information and there exists no HDI at the household level. This paper provides a method and ill...

Given n points in the plane and an integer k, the slope selection problem is to nd the pair of points whose connecting line has the k-th smallest slope. (In dual setting, given n lines in the plane, we want to nd the vertex of their arrangement with the k-th smallest x-coordinate.) Cole et al. 6] have given an O(n log n) solution (which is optimal), using the parametric searching technique of M...

We show that the widely used Kendall tau correlation coefficient, and the related Mallows kernel, are positive definite kernels for permutations. They offer computationally attractive alternatives to more complex kernels on the symmetric group to learn from rankings, or learn to rank. We show how to extend these kernels to partial rankings, multivariate rankings and uncertain rankings. Examples...