Using the rapid growth of computational biology and e-commerce applications, high-dimensional data becomes usual. Thus, mining high dimensional data is an urgent problem of great practical importance. Within the high dimensional data the dimensional reduction is a vital factor, to the purpose the clustering based feature subset selection algorithm is proposed in this particular paper. The chara...

The population-genetic consequences of population structure are of great interest and have been studied extensively. An area of particular interest is the interaction among population structure, natural selection, and genetic drift. At first glance, different results in this area give very different impressions of the effect of population subdivision on effective population size (N(e)), suggest...

We model parental sex selection and the equilibrium sex ratio. With intrinsic son preference, sex selection results in a male-biased sex ratio. This is ine¢ cient, due to a marriage market congestion externality. Medical innovations that facilitate selection increase ine¢ ciency. If son preference arises endogenously, due to population growth causing an excess of women on the marriage market, s...

the e-selectin mediates the interaction of activated endothelial cells with leukocytes and plays a fundamental role in the pathogenesis of asthma. it has been suggested that an s/r (serine128arginine) polymorphism of e-selectin alters ligand binding function. our purpose in this study was to determine whether this serine128arginine polymorphism influences the risk of asthma and also to analyze ...

A decision maker (DM) wishes to select a competent candidate to …ll a position. However, since the wage and task of the position is predetermined, the DM cannot use contract as a screening device. This paper formulates the problem as a class of selection problem and derives the optimal selection procedure. The key element of our selection procedure is voluntary testing. That is, unlike statisti...

SKUTCH, A. F. 1989. Birds asleep. University of Texas Press, Austin. TOOLSON, E. C. 1987. Water profligacy as an adaptation to hot deserts: Water loss rates and evaporative cooling in the Sonoran Desert cicada, Diceroprocta apache (Homoptera: Cicadidae). Physiological Zoology 60:379-385. VLECK, C. M., AND D. VLECK. 1979. Metabolic rate in five tropical bird species. Condor 81:89-91. WALSBERG, ....

The breeder's equation is a cornerstone of quantitative genetics, widely used in evolutionary modeling. Noting the mean phenotype in parental, selected parents, and the progeny by E(Z0), E(ZW), and E(Z1), this equation relates response to selection R = E(Z1) - E(Z0) to the selection differential S = E(ZW) - E(Z0) through a simple proportionality relation R = h(2)S, where the heritability coeffi...