Results 51 to 60 of about 54,362 (337)
Cosine-based classification—Error analysis.
, 2019 Mosaic plot showing the error analysis of the categorization experiment performed using cosine as the distance metric to retrieve nearest neighbors. Blue cells indicate cases in which the observed frequencies significantly exceed the expected frequencies
Steven Gillis (5248271) +3 more
core +1 more source
Some Novel Cosine Similarity Measures Based on Complex Hesitant Fuzzy Sets and Their Applications
Journal of Mathematics, 2021 The theory of complex hesitant fuzzy set (CHFS) is a modification technique of the complex fuzzy set (CFS) to cope with awkward and unreliable information’s in daily life issues.
Ronnason Chinram +4 more
doaj +1 more source
On the Spectrum of Cosine Functions
Journal of Mathematical Analysis and Applications, 1999 The author gives some characterizations of the resolvent set \(\rho(A)\) of the generator \(A\) of a strongly continuous cosine function \(C(t)\) with the aid of the equation \[ u''(t)=Au(t)+f(t). \] One of these theorems shows that \(1\in\rho(C(1))\) if and only if, for every \(1\)-periodic function \(f\in C([0,1],X)\) (\(X\) is a Banach space), the ...
openaire +1 more source
Point-Symmetric Extension-Based Interval Shannon-Cosine Spectral Method for Fractional PDEs
Discrete Dynamics in Nature and Society, 2020 The approximation accuracy of the wavelet spectral method for the fractional PDEs is sensitive to the order of the fractional derivative and the boundary condition of the PDEs.
Ruyi Xing +4 more
doaj +1 more source
, 2010 The 'tanh-coth expansion method' for finding solitary travelling-wave solutions to nonlinear evolution equations has been used extensively in the literature. It is a natural extension to the basic tanh-function expansion method which was developed in the
Parkes, E.J.
core +1 more source
On the choice of an auxiliary function in the M/G/∞ estimation. [PDF]
, 2007 The use of auxiliary functions in nonparametric inference for the M/G/∞ queueing model is considered. Estimation of the service time distribution G is challenging when only limited information about the busy/idle cycle is available.
Park, Juhyun
core +1 more source
Double Fourier Cosine-Jacobi series for Fox\'s H-function
, 1993 In this paper, we present a new class of double Founrier Cosine-Jacobi series for Fox's H ...
Bajpai, S.D.
core +1 more source
ON GENERALIZED SINE AND COSINE FUNCTIONS
Demonstratio Mathematica, 1995 The author finds addition formulas for functions \(f\), \(g\) which satisfy the functional equation \((f (x))^n+ (g (x))^n =1\), where \(f\), \(g\) are supposed to be real functions on a given group \((X, +)\) and \(n\in \mathbb{N}\) is fixed. The obtained addition formulas coincide with the well known representations of \(\cos (x+y)\) and \(\sin (x+y)\
openaire +2 more sources
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Background Emerging evidence suggests that low‐frequency neural oscillations are dynamically regulated by consciousness levels, with the recovery of low cortical activity potentially serving as a neurophysiological substrate for conscious emergence. Targeted enhancement of these low‐frequency rhythms in patients with disorders of consciousness
Chuan Xu +10 more
wiley +1 more source
On the Superstability Related with the Trigonometric Functional Equation
Advances in Difference Equations, 2009 We will investigate the superstability of the (hyperbolic) trigonometric functional equation from the following functional equations: , , , , which can be considered the mixed functional equations of the sine function and cosine function, of the ...
Kim GwangHui
doaj +2 more sources