Results 81 to 90 of about 1,539,341 (287)
Rapid near-optimal VQ design with a deterministic data net [PDF]
, 2005 We present a new algorithm for fixed-rate vector quantizer (VQ) design with deterministic data net. The algorithm also performs efficient VQ design for simply characterized continuous distributions. The algorithm also serves as an approximation algorithm
Effros, Michelle, Schulman, Leonard J.
core
Time‐delay polynomial networks and rates of approximation [PDF]
Mathematical Problems in Engineering, 1997 We consider a large family of finite memory causal time‐invariant maps G from an input set S to a set of ℝ‐valued functions, with the members of both sets of functions defined on the nonnegative integers, and we give an upper bound on the error in approximating a G using a two‐stage structure consisting of a tapped delay line and a static polynomial ...
openaire +2 more sources
FEBS Letters, EarlyView.Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho +3 more
wiley +1 more source
CMS swaps in separable one-factor Gaussian LLM and HJM model [PDF]
An approximation approach to Constant Maturity Swaps (CMS) pricing in the separable one-factor Gaussian LLM and HJM models is presented. The approximation used is a Taylor expansion on the swap rate as a function of a random variable which is intuitively
Henrard, Marc
core +1 more source
Two sufficient conditions for Poisson approximations in the ferromagnetic Ising model
, 2008 A $d$-dimensional ferromagnetic Ising model on a lattice torus is considered. As the size of the lattice tends to infinity, two conditions ensuring a Poisson approximation for the distribution of the number of occurrences in the lattice of any given ...
Coupier, David
core +2 more sources
Real‐time assay of ribonucleotide reductase activity with a fluorescent RNA aptamer
FEBS Letters, EarlyView.Ribonucleotide reductases (RNR) synthesize DNA building blocks de novo, making them crucial in DNA replication and drug targeting. FLARE introduces the first single‐tube real‐time coupled RNR assay, which enables isothermal tracking of RNR activity at nanomolar enzyme levels and allows the reconstruction of allosteric regulatory patterns and rapid ...
Jacopo De Capitani +4 more
wiley +1 more source
Rate of convergence of Stancu beta operators for functions of bounded variation
Journal of Numerical Analysis and Approximation Theory, 2004 In this paper we study beta operators of second kind recently introduced by Prof. D. D. Stancu. We obtain an estimate on the rate of convergence for functions of bounded variation by means of the decomposition technique.
Ulrich Abel, Vijay Gupta
doaj +2 more sources
Проблемы анализа, 2018 We study a uniform approximation by differences Θ1 - Θ2 of simplest fractions (s.f.’s), i. e., by logarithmic derivatives of rational functions on continua K of the class Ωr, r > 0 (i.
Komarov M . A .
doaj +1 more source
Modeling the Term Structure of Interest Rates with General Diffusion Processes: A Moment Approximation Approach [PDF]
We propose an analytical approximation of the term structure of interest rates under general diffusion processes of the short-rate and state variables.
Shoji, Isao, Takamizawa, Hideyuki
core
Time after time – circadian clocks through the lens of oscillator theory
FEBS Letters, EarlyView.Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo +2 more
wiley +1 more source