Výsledky vyhledávání - "Conjugate gradient algorithm"

An optimal choice Dai-Liao conjugate gradient algorithm for unconstrained optimization and portfolio selection Autor Sabi'u, Jamilu, Sulaiman, Ibrahim Mohammed, Kaelo, P., Malik, Maulana, Kamaruddin, Saadi Ahmad

“…In this research, we propose an optimal choice for the non-negative constant in the Dai-Liao conjugate gradient formula based on the prominent Barzilai-Borwein…”
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A new three-term conjugate gradient algorithm with modified gradient-differences for solving unconstrained optimization problems Autor Guo, Jie, Wan, Zhong

“… On the basis of a modified gradient-difference, this article aims to present a new three-term conjugate gradient algorithm to efficiently solve unconstrained optimization problems…”
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An online conjugate gradient algorithm for large-scale data analysis in machine learning Autor Xue, Wei, Wan, Pengcheng, Li, Qiao, Zhong, Ping, Yu, Gaohang, Tao, Tao

“…In recent years, the amount of available data is growing exponentially, and large-scale data is becoming ubiquitous. Machine learning is a key to deriving…”
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A scaled BFGS preconditioned conjugate gradient algorithm for unconstrained optimization Autor Andrei, Neculai

“…This letter presents a scaled memoryless BFGS preconditioned conjugate gradient algorithm for solving unconstrained optimization problems…”
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Another hybrid conjugate gradient algorithm for unconstrained optimization Autor Andrei, Neculai

“…Another hybrid conjugate gradient algorithm is subject to analysis. The parameter β k is computed as a convex combination…”
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Accelerated hybrid conjugate gradient algorithm with modified secant condition for unconstrained optimization Autor Andrei, Neculai

“…An accelerated hybrid conjugate gradient algorithm represents the subject of this paper…”
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Advancing SVM classification: Parallelizing conjugate gradient for monotonicity enforcement Autor Chuang, Hui-Chi, Chen, Chih-Chuan, Li, Sheng-Tun

“…•Conjugate gradient is used to minimize subject to linear equality constraints.•The model is applicable to large-scale and complex problems…”
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On the estimation of destructive cure rate model: A new study with exponentially weighted Poisson competing risks Autor Pal, Suvra, Roy, Souvik

“…A new estimation method is proposed founded upon a nonlinear conjugate gradient‐type algorithm having an efficient line search technique for cure rate models with competing risks, which are subject to elimination…”
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POLAK-RIBIERE CONJUGATE GRADIENT ALGORITHM IN PREDICTING THE PERCENTAGE OF OPEN UNEMPLOYMENT IN NORTH SUMATRA PROVINCE Autor Amalya, Nanda, Solikhun, Solikhun

“…The economic problem that has a direct impact on human life and welfare is unemployment. One of the cities in Indonesia with the highest unemployment rate is…”
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Joint Multicast and Unicast Beamforming for Coded Caching Autor Zhong, Shan, Wang, Xiaodong

“… We propose a Riemannian conjugate gradient algorithm to solve the problem, which operates on the multi-sphere manifold of the parameter space and has a low computational complexity but better performance compared with the existing semi-definite relaxation methods. Extensive simulation results are provided to demonstrate the performance of the proposed systems…”
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A cooperative conjugate gradient method for linear systems permitting efficient multi-thread implementation Autor Bhaya, Amit, Bliman, Pierre-Alexandre, Niedu, Guilherme, Pazos, Fernando A.

“…This paper revisits, in a multi-thread context, the so-called multi-parameter or block conjugate gradient (B-CG) methods, first proposed as sequential…”
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SCG Backpropagation Based Prediction of Stressed EEG Spectrum Autor Upadhyay, Prabhat Kumar, Nagpal, Chetna

“… Features extracted in terms of wavelet coefficients are further classified using scaled conjugate gradient algorithm (SCG…”
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An Intelligent Diagnosis Flu System Based on Adaptive Neuro-Fuzzy Classifer Autor Hsieh, Sheng-Ta, Lin, Chun-Ling

“…This study adopts existing three adaptive-neuro-fuzzy classifiers which are neuro-fuzzy classifier with a scaled conjugate gradient algorithm (NFCSCG…”
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Open Problems in Nonlinear Conjugate Gradient Algorithms for Unconstrained Optimization Autor Andrei, Neculai

“…The paper presents some open problems associated to the nonlinear conjugate gradient algorithms for unconstrained optimization…”
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Higher order reconstruction for MRI in the presence of spatiotemporal field perturbations Autor Wilm, Bertram J., Barmet, Christoph, Pavan, Matteo, Pruessmann, Klaas P.

“…Despite continuous hardware advances, MRI is frequently subject to field perturbations that are of higher than first order in space and thus violate the traditional k…”
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Kernel Functional Maps Autor Wang, L., Gehre, A., Bronstein, M. M., Solomon, J.

“…Functional maps provide a means of extracting correspondences between surfaces using linear‐algebraic machinery. While the functional framework suggests…”
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Simultaneous determination of the zeroth-order coefficient and source term in a time-fractional diffusion equation Autor Qiao, Yu, Xiong, Xiangtuan, Li, Zhenping

“…This paper investigates the simultaneous inversion problem of recovering the zeroth-order coefficient and source term in a time-fractional diffusion equation…”
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Complexity of a projected Newton-CG method for optimization with bounds Autor Xie, Yue, Wright, Stephen J.

“… The method contains elements of two existing methods: the classical gradient projection approach for bound-constrained optimization and a recently proposed Newton-conjugate gradient algorithm for unconstrained nonconvex optimization…”
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A full-spectral Bayesian reconstruction approach based on the material decomposition model applied in dual-energy computed tomography Autor Cai, C., Rodet, T., Legoupil, S., Mohammad-Djafari, A.

“…Purpose: Dual-energy computed tomography (DECT) makes it possible to get two fractions of basis materials without segmentation. One is the soft-tissue…”
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Probabilistically Robust Optimization of IRS-Aided SWIPT Under Coordinated Spectrum Underlay Autor Ntougias, Konstantinos, Krikidis, Ioannis

“… (IRS)-aided secondary transmitter (ST) is minimized subject to the quality-of-service requirements of the PS-simultaneous wireless information and power transfer (SWIPT…”
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