Results 161 to 170 of about 246,522 (205)

Exponential convergence of recursive least squares with exponential forgetting factor —adaptive control

Systems & Control Letters, 1982
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Johnstone, Richard M., Anderson, Brian D. O.   +1 more
openaire   +1 more source

Dynamic Exponential Family Matrix Factorization

2009
We propose a new approach to modeling time-varying relational data such as e-mail transactions based on a dynamic extension of matrix factorization. To estimate effectively the true relationships behind a sequence of noise-corrupted relational matrices, their dynamic evolutions are modeled in a space of low-rank matrices.
Kohei Hayashi, Jun-ichiro Hirayama, Shin Ishii   +2 more
openaire   +1 more source

Factorizing Entire Functions of Exponential Type

Topical Meeting On Signal Recovery and Synthesis II, 1986
The nonlinear problem of factorizing a distribution having compact planar support as a convolution product given possible a priori information about the factors includes the problems of blind deconvolution and signal recovery from magnitude. By the Paley-Wiener-Schwartz theorem [1, p.
Wayne Lawton, John Morrison
openaire   +1 more source

Exponential Factors in Commercial Aviation

SAE Technical Paper Series, 1983
<div class="htmlview paragraph">The air transport industry entered the era of commercial feasibility in 1936 with the introduction of the DC-3, which enabled airlines for the first time to operate at a profit by carrying passengers only and at existing fares.
openaire   +1 more source

On the Pre-Exponential Factor in Stress Relaxation

Physica Status Solidi (a), 1978
It is shown that, for stress relaxation, the pre-exponential factor in the usual flow rate formulae based on the stress-aided thermal activation concept increases linearly with the initial effective stress. Experimental examples are presented for both metallic and polymeric solids, mainly at room temperature.
J. Kubát, M. Rigdahl, R. Seldén
openaire   +1 more source

Exponential Scale-Factor based Differential Evolution Algorithm

2017 International Conference on Computer, Communications and Electronics (Comptelix), 2017
Differential Evolution (DE) Algorithm is a familiar evolutionary and straightforward optimization approach to deal with nonlinear and composite problems. Crossover rate (CR) and scale factor (V) are two control parameters which play a crucial role to retain the proper equilibrium betwixt exploitation and exploration capabilities of DE algorithm. In DE,
Rashmi Agarwal, Harish Sharma, Nirmala Sharma   +2 more
openaire   +1 more source

Nonnegative matrix factorization with matrix exponentiation

2010 IEEE International Conference on Acoustics, Speech and Signal Processing, 2010
Nonnegative matrix factorization (NMF) has been successfully applied to different domains as a technique able to find part-based linear representations for nonnegative data. However, when extra constraints are incorporated into NMF, simple gradient descent optimization can be inefficient for high-dimensional problems, due to the overhead to enforce the
openaire   +1 more source

Pre-exponential Factor in Semiconducting Organic Substances

The Journal of Chemical Physics, 1968
Experimental data on semiconducting organic substances are usually processed by use of the two-constant equation, σ(T) = σ0exp(−E / 2kT). Evidence from a number of cases now indicates that σ0 is dependent on E, when the equation is applied to certain single substances where E varies with preparation.
Barnett Rosenberg, Benoy B. Bhowmik, Harold C. Harder, Elliot Postow   +3 more
openaire   +1 more source

A factorization theorem for an exponential operator

Letters in Mathematical Physics, 1984
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Mitter, H., Yamazaki, K.
openaire   +2 more sources

URS' For Weierstrass Products without Exponential Factors

Complex Variables, Theory and Application: An International Journal, 2002
Let $ \cal W $ be the set of entire functions equal to a Weierstrass product of the form $ {f(x)= Ax^q\lim_{r \to \infty} \prod_{|a_j|\leq r}{(1- \fraca {x} {a_j})}} $ where the convergence is uniform in all bounded subsets of $ {\shadC} $ , let $ \cal V $ be the set of $ f\in {\cal W} $ such that $ {\shadC} [\,f]\subset {\cal W} $ , and let $ {\cal H}
Abdelbaki Boutabaa, Alain Escassut
openaire   +1 more source