The skewness of broad Type 2-like spectra has been studied using data collected by two orthogonal CW 50-MHz radio links with co-located scattering volumes. Geometrical aspect angles of observations were about 10°. One short event was considered. For this event, the electron ̄ow direction was changing periodically (period about 9 minutes) presumably due to the passage of a magnetospheric MHD wav...

Parallel and distributed association rule mining are very important research subjects, with various work addressing them. Data skewness, which describes the degree of non-uniformity of the itemset distribution among database partitions, causes various problems to parallel and distributed association rule mining algorithms, such as the generation of many false candidate itemsets. However, some a...

We propose using the statistical measurement of the sample skewness of the distribution of mean firing rates of a tuning curve to quantify sharpness of tuning. For some features, like binocular disparity, tuning curves are best described by relatively complex and sometimes diverse functions, making it difficult to quantify sharpness with a single function and parameter. Skewness provides a robu...

Distributions of assets returns exhibit a slight skewness. In this note we show that our model of endogenous price formation [4] creates an asymmetric return distribution if the price dynamics are a process in which consecutive trading periods are dependent from each other in the sense that opening prices equal closing prices of the former trading period. The corresponding parameter α is estima...

Spatial firing fields (place fields) of rat hippocampal cells undergo changes when the rat runs stereotyped routes. Previously, Mehta et al. [Experience-dependent asymmetric shape of hippocampal receptive fields, Neuron 25 (2000) 700–715] indicated that spike timingdependent plasticity (STDP) might explain the observed shift of the place field center of mass and the development of skewness. In ...

In the presence of skewness, portfolio selection requires to consider competing and conflicting objectives. We utilize polynomial goal programming to determine the optimal portfolio from emerging markets industries. The first part of this paper is concerned with an industry level analysis of the effects of portfolio selection when the skewness is taken into account. The second part of the paper...