Results 111 to 120 of about 11,165 (303)

String kernels, Fisher kernels and finite state automata

open access: yes, 2003
In this paper we show how the generation of documents can be thought of as a k-stage Markov process, which leads to a Fisher kernel from which the n-gram and string kernels can be re-constructed.
Shawe-Taylor, John   +5 more
core  

Quadratures for Boundary Integral Equations of the First Kind with Logarithmic Kernels

open access: yesJournal of Integral Equations and Applications, 1996
The authors study a Nyström method for integral equations of the first kind with a logarithmic kernel on smooth closed or open contours in the plane. It is known that the corresponding problem can be reformulated as an equivalent integral equation of the second kind with special kernels defined by Cauchy singular integrals for both closed curves and ...
Xu, Yuesheng, Zhao, Yunhe
openaire   +3 more sources

Lost in aggregation? On the importance of local food price data for food poverty estimates

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract This paper explores within‐country variations in food price dynamics and food poverty estimates by employing local market price data and national consumer price index (CPI) data. Our results show that national CPI data may be useful for approximating national trends but they fail to detect and identify spatial variations in local trends, which
Stephan Dietrich   +4 more
wiley   +1 more source

Solution of a singular integral equation by a split-interval method

open access: yes, 2007
The article is available at http://www.math.ualberta.ca/ijnam/Volume-4-2007/No-1-07/2007-01-05.pdf. This article is not available through the Chester Digital RepositoryThis article discusses a new numerical method for the solution of a singular integral ...
Ford, Neville J.   +3 more
core  

Nonperturbative Collins-Soper kernel from chiral quarks with physical masses

open access: yesPhysics Letters B
We present a lattice QCD calculation of the rapidity anomalous dimension of quark transverse-momentum-dependent distributions, i.e., the Collins-Soper (CS) kernel, up to transverse separations of about 1 fm. This unitary lattice calculation is conducted,
Dennis Bollweg   +3 more
doaj   +1 more source

A numerical method for a class of Volterra integral equations with logarithmic perturbation kernel

open access: yes, 1998
We use Lagrange interpolation and an equivalent collocation method to find numerical approximations to the solution of a class of Volterra integral equations with constant coefficients containing a logarithmic difference kernel.
FORMICA, MARIA ROSARIA, M. R. CAPOBIANCO
core  

On a generalized logarithmic kernel and its potentials [PDF]

open access: yesAnnales Polonici Mathematici, 1981
Anandam, Victor, Brelot, Marcel
openaire   +2 more sources

Long‐Range Interactions in Topological Superconducting Systems: A Mini Review

open access: yesAdvanced Physics Research, EarlyView.
Long‐range interacting quantum systems are surveyed in this review, with an emphasis on the long‐range topological superconductor and its variants. Long‐range interactions decaying in a power‐law manner can lead to exotic phenomena that finds no analogue in short‐range regimes.
Juntong Ren, Haifeng Lü
wiley   +1 more source

A logarithmic Sobolev form of the Li-yau parabolic inequality

open access: yes, 2006
International audienceWe present a finite dimensional version of the logarithmic Sobolev inequality for heat kernel measures of non-negatively curved diffusion operators that contains and improves upon the Li-Yau parabolic inequality. This new inequality
Ledoux, Michel, Bakry, Dominique
core   +1 more source

Designing the MyoFusion Media: A Serum‐Free Medium Optimized for Bovine Satellite Cell Differentiation

open access: yesBiotechnology and Bioengineering, EarlyView.
ABSTRACT Cultivated meat production requires efficient differentiation of muscle progenitor cells into myotubes without relying on animal‐derived serum, which poses ethical and scalability challenges. This study aimed to develop a chemically defined, serum‐free medium optimized for bovine satellite cell differentiation.
Aysenaz Tavsanli   +3 more
wiley   +1 more source

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