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We introduce Adam, an algorithm for first-order gradient-based optimization of stochastic objective functions, based on adaptive… Expand A general non-parametric technique is proposed for the analysis of a complex multimodal feature space and to delineate… Expand The panel data unit root test suggested by Levin and Lin (LL) has been widely used in several applications, notably in papers on… Expand A comprehensive review of spatiotemporal pattern formation in systems driven away from equilibrium is presented, with emphasis on… Expand The standard conclusion that is drawn from this empirical evidence is that many or most aggregate economic time series contain a… Expand A new molecular mechanics force field, the Universal force field (UFF), is described wherein the force field parameters are… Expand This study began with the premise that people can use varying degrees of their selves, physically, cognitively, and emotionally… Expand I Stationary Processes.- 1. General Discussion.- 2. Positive Definite Functions.- 3. Fourier Representation of a Weakly… Expand Abstract Solute interaction with nonpolar stationary phases in liquid chromatography is examined on the basis of the solvophobic… Expand The use of the fast Fourier transform in power spectrum analysis is described. Principal advantages of this method are a… Expand