Results 31 to 40 of about 53,283 (278)

Trigonometric words ranking model for spam message classification

IET Networks, EarlyView., 2022
Abstract The significant increase in the volume of fake (spam) messages has led to an urgent need to develop and implement a robust anti‐spam method. Several of the current anti‐spam systems depend mainly on the word order of the message in determining the spam message, which results in the system's inability to predict the correct type of message when
Suha Mohammed Hadi, Ali Hakem Alsaeedi, Dhiah Al‐Shammary, Zaid Abdi Alkareem Alyasseri, Mazin Abed Mohammed, Karrar Hameed Abdulkareem, Riyadh Rahef Nuiaa, Mustafa Musa Jaber   +7 more
wiley   +1 more source

Binet's second formula, Hermite's generalization, and two related identities

Open Mathematics, 2023
Legendre was the first to evaluate two well-known integrals involving sines and exponentials. One of these integrals can be used to prove Binet’s second formula for the logarithm of the gamma function.
Boyack Rufus
doaj   +1 more source

Simultaneous Contour Method of a Trigonometric Integral by Prudnikov et al.

Mathematics, 2021
In this present work we derive, evaluate and produce a table of definite integrals involving logarithmic and exponential functions. Some of the closed form solutions derived are expressed in terms of elementary or transcendental functions.
Robert Reynolds, Allan Stauffer
doaj   +1 more source

On Some Trigonometric Integrals [PDF]

Mathematics of Computation, 1980
Expressions are obtained for the integrals \[ I λ ( p ) = ∫ 0 π / 2 (
openaire   +2 more sources

Opposite Antipodal Fundamental Solution of Laplace's Equation in Hyperspherical Geometry [PDF]

, 2011
Due to the isotropy of $d$-dimensional hyperspherical space, one expects there to exist a spherically symmetric opposite antipodal fundamental solution for its corresponding Laplace-Beltrami operator.
Cohl, Howard S.
core   +3 more sources

Integral method from even to odd order for trigonometric B-spline basis

AIMS Mathematics
The conventional trigonometric B-spline basis of odd order for piecewise trigonometric polynomial space possesses a lot of good modeling properties. However, its order cannot be increased by the integral method like B-spline because of the particularity ...
Mei Li, Wanqiang Shen
doaj   +1 more source

Integral Inequalities Involving Strictly Monotone Functions

Mathematics, 2023
Functional inequalities involving special functions are very useful in mathematical analysis, and several interesting results have been obtained in this topic.
Mohamed Jleli, Bessem Samet
doaj   +1 more source

Geometry of q-Hypergeometric Functions as a Bridge between Yangians and Quantum Affine Algebras [PDF]

, 1996
The rational quantized Knizhnik-Zamolodchikov equation (qKZ equation) associated with the Lie algebra $sl_2$ is a system of linear difference equations with values in a tensor product of $sl_2$ Verma modules.
A. Izergin, A. Matsuo, A. Selberg, A. Varchenko, A. Varchenko, A. Varchenko, A. Varchenko, A.N. Varchenko, A.N. Varchenko, D. Kazhdan, D. Kazhdan, E.T. Whittaker, F. Loeser, F.A. Smirnov, G. Gasper, I.B. Frenkel, K. Aomoto, K. Kadell, L.D. Faddeev, N.Yu. Reshetikhin, N.Yu. Reshetikhin, N.Yu. Reshetikhin, P.P. Kulish, R.A. Gustafson, S. Lukyanov, T. Kohno, T. Kohno, V. Chari, V. Tarasov, V.E. Korepin, V.G. Drinfeld, V.G. Drinfeld, V.O. Tarasov, V.O. Tarasov, V.V. Schechtman, V.V. Schechtman   +35 more
core   +4 more sources

Limits of elliptic hypergeometric integrals

, 2006
In math.QA/0309252, the author proved a number of multivariate elliptic hypergeometric integrals. The purpose of the present note is to explore more carefully the various limiting cases (hyperbolic, trigonometric, rational, and classical) that exist.
Rains, Eric M.
core   +1 more source

Symmetry Properties of a Generalized Korteweg-de Vires Equation and some Explicit Solutions [PDF]

, 2005
The symmetry group method is applied to a generalized Korteweg-de Vries equation and several classes of group invarint solution for it are obtained by means of this technique.
Bracken, Paul
core   +4 more sources