-
1661
Modeling nonlinearities with mixtures-of-experts of time series models
Published 2006-01-01“…We discuss a class of nonlinear models based on mixtures-of-experts of regressions of exponential family time series models, where the covariates include functions of lags of the dependent variable as well as external covariates. …”
Get full text
Article -
1662
Forecasting Lattice and Point Spatial Data: Comparison of Unilateral and Multilateral SAR Models
Published 2024-08-01“…The statistical properties of parameter and forecast estimates strongly depend on the structure of such matrices. …”
Get full text
Article -
1663
Suppression of Nonlinear XPM Phenomenon by Selection of Appropriate Transmit Power Levels in the DWDM System
Published 2019-01-01“…In optical transfer data systems a system is functioning if the measured BER parameter is not bigger than 10−12.…”
Get full text
Article -
1664
Oscillation Criteria for Some New Generalized Emden-Fowler Dynamic Equations on Time Scales
Published 2013-01-01“…By means of novel analytical techniques, we have established several new oscillation criteria for the generalized Emden-Fowler dynamic equation on a time scale 𝕋, that is, (r(t)|ZΔ(t)|α-1ZΔ(t))Δ+f(t,x(δ(t)))=0, with respect to the case ∫t0∞r-1/α(s)Δs=∞ and the case ∫t0∞r-1/α(s)Δs<∞, where Z(t)=x(t)+p(t)x(τ(t)), α is a constant, |f(t,u)|⩾q(t)|uβ|, β is a constant satisfying α⩾β>0, and r, p, and q are real valued right-dense continuous nonnegative functions defined on 𝕋. …”
Get full text
Article -
1665
DFT-analysis of protolytic equivalents of 5-(aryl)-4-(methyl,amino)-1,2,4-triazole-3(2H)-thione
Published 2022-08-01“…Thus, the stationary structures are confirmed by checking that all ground states have only real frequencies, and all transition states have only one imaginary frequency. …”
Get full text
Article -
1666
Monitoring spatiotemporal changes in global change drivers and their effects on semiarid woodlands and forests - fieldwork protocol [version 2; peer review: 2 approved]
Published 2025-03-01“…Additionally, participants examined plant biodiversity and functional ecology, focusing on lichens and their connection to air quality, and soil physico-chemical properties. …”
Get full text
Article -
1667
On the Cross Correlation Properties of MIMO Wideband Channels under Nonisotropic Propagation Conditions
Published 2015-01-01“…In this paper, we developed a novel channel model based on the statistical analysis of two-dimensional cross correlation functions (CCFs) of WB/UWB MIMO nonisotropic channels. …”
Get full text
Article -
1668
E-Bayesian Prediction for the Burr XII Model Based on Type-II Censored Data with Two Samples
Published 2020-01-01“…The purpose of this paper is to obtain E-Bayesian predictive functions which are based on observed order statistics with two samples from two parameter Burr XII model. …”
Get full text
Article -
1669
Explanation of Air Quality Data Using Takagi–Sugeno Fuzzy Inference System
Published 2025-03-01“…Therefore, we replaced the output linear functions with constant functions and subsequently optimised the system to achieve the lowest approximation error. …”
Get full text
Article -
1670
Extended Rayleigh Probability Distribution to Higher Dimensions
Published 2024-01-01“…For the 3-DRD, plots of cumulative distribution, probability density, survival, and hazard functions are exhibited, a simulation study is carried out, and random samples are generated using the standard accept–reject (AR) algorithm to check the efficiency of the maximum likelihood estimates of the parameter. …”
Get full text
Article -
1671
Variational autoencoder-based multipath clustering algorithm for terahertz channels
Published 2025-06-01“…Secondly, K-Means clustering was embedded into the VAE framework, with joint optimization of reconstruction loss, KL divergence, and clustering loss functions to resolve the challenges of feature separation in unsupervised learning. …”
Get full text
Article -
1672
Laser material processing optimization using bayesian optimization: a generic tool
Published 2024-09-01“…Case studies on laser cutting, welding, and polishing highlight its adaptability to real-world manufacturing scenarios. Moreover, the examples emphasize that with suitable cost functions and boundaries an acceptable optimization result can be achieved after a reasonable number of experiments.…”
Get full text
Article -
1673
Simple gravitational particle swarm algorithm for multimodal optimization problems.
Published 2021-01-01“…Furthermore, an improved GPSA with a dynamic parameter delivered significantly superior results to the existing methods on at least 60% of the tested benchmark functions.…”
Get full text
Article -
1674
False vacuum decay rate from thin to thick walls
Published 2025-04-01“…We calculate the functional determinant numerically in 3 and 4 dimensions and fit the results with simple polynomials of the same thin wall parameter. …”
Get full text
Article -
1675
On a Generalized Alpha Skew Laplace Distribution: Properties and Applications
Published 2025-02-01“…The utility of the new distribution is validated through simulation studies which confirms the asymptotic consistency of its parameter estimates under varying sample sizes. Real-life applications involving white cell count data of Australian athletes and failure times of aircraft windshields demonstrate its superior performance over some established models. …”
Get full text
Article -
1676
Statistical inference for the generalized exponential distribution using ordered lower k-record ranked set sampling with random sample sizes
Published 2025-05-01“…Abstract This article presents an innovative sampling strategy, ordered moving extremes lower k-record ranked set sampling, designed to enhance parameter estimation and prediction for the generalized exponential distribution. …”
Get full text
Article -
1677
One-loop five-parton amplitudes in the NMRK limit
Published 2024-07-01“…Abstract We analyse the real part of one-loop five-parton amplitudes in the next-to-multi-Regge kinematic (NMRK) limit, to leading power, and to finite order in the dimensional regularisation parameter. …”
Get full text
Article -
1678
RWOA: A novel enhanced whale optimization algorithm with multi-strategy for numerical optimization and engineering design problems.
Published 2025-01-01“…The proposed RWOA was evaluated using 23 classical benchmark functions and the impact of six improvement strategies was analyzed. …”
Get full text
Article -
1679
Fast Nonparametric Inference of Network Backbones for Weighted Graph Sparsification
Published 2025-07-01“…We demonstrate our methods by comparing them with existing methods in a range of tasks on real and synthetic networks, finding that both the global and local backboning methods can preserve network connectivity, weight heterogeneity, and spreading dynamics while removing a substantial fraction of edges.…”
Get full text
Article -
1680
Optical spectra of silver clusters and nanoparticles from 4 to 923 atoms from the TDDFT+U method
Published 2024-10-01“…We show that the DFT+U method, employed with real-time time-dependent density-functional theory calculations (RT-TDDFT), provides spectra in good agreement with experiment for silver clusters ranging from 4 to 923 atoms, the latter representing a nanoparticle of 3 nm. …”
Get full text
Article