Results 81 to 90 of about 5,105 (201)

On Kruskal’s uniqueness condition for the Candecomp/Parafac decomposition

Linear Algebra and its Applications, 2007
The Candecomp/Parafac-decomposition of the real valued three-way array \(X\) is written as \(X=\underline{Y}^{(1)} + \ldots + \underline{Y}^{(R)} +\underline{E}\), where \(\underline{Y}^{(r)}\) are rank one arrays defined as outer products of three specified vectors and \(\underline E\) is a rest term.
Stegeman, A., Sidiropoulos, N. D.
openaire   +3 more sources

Regularized Tensor Quantile Regression With Applications to Neuroimaging Data Analysis

Statistics in Medicine, Volume 45, Issue 10-12, May 2026.
ABSTRACT This article proposes a regularized linear quantile regression model with a scalar response and tensor‐valued covariates. Our model uniquely regularizes the parameters of a low‐dimensional tensor effect decomposition through the tensor estimate rather than directly through the decomposition's parameters.
Matthew Pietrosanu, Dengdeng Yu, Ivan Mizera, Bei Jiang, Linglong Kong   +4 more
wiley   +1 more source

THREE-WAY DATA ANALYSIS OF COPPER-PARACETAMOL COMPLEX FORMATION FOR THE QUANTIFICATION OF PARACETAMOL IN PHARMACEUTICAL MATRICES

Studia Universitatis Babes-Bolyai Chemia
We present a chemometric strategy to study complex formation reactions using parallel factor analysis (PARAFAC) of three-way spectral data.UV spectra of PAR, CuSO4, and their complex were recorded at five different pH levels.
İbrahim TEĞİN, Gurbet CANPOLAT, Zehra Ceren ERTEKİN, Nihat GÜÇLÜ, Erdal DİNÇ   +4 more
doaj   +1 more source

A Comparative Study of the Application of Fluorescence Excitation-Emission Matrices Combined with Parallel Factor Analysis and Nonnegative Matrix Factorization in the Analysis of Zn Complexation by Humic Acids

Sensors, 2016
The main aim of this study was the application of excitation-emission fluorescence matrices (EEMs) combined with two decomposition methods: parallel factor analysis (PARAFAC) and nonnegative matrix factorization (NMF) to study the interaction mechanisms ...
Patrycja Boguta, Piotr M. Pieczywek, Zofia Sokołowska   +2 more
doaj   +1 more source

Determination of carbendazim residues in various vegetable oils based on three-dimensional fluorescence spectroscopy

Shipin yu jixie
ObjectiveTo develop a rapid and accurate method for the determination of carbendazim residues in vegetable oils.MethodsThree-dimensional fluorescence spectroscopy combined with chemometrics was used for the quantitative analysis of carbendazim residues ...
XIAO Jian, XIA Alin, HUANG Wei
doaj   +1 more source

Simultaneous and Direct Determination of Vancomycin and Cephalexin in Human Plasma by Using HPLC-DAD Coupled with Second-Order Calibration Algorithms

Journal of Analytical Methods in Chemistry, 2012
A simple, rapid, and sensitive method for the simultaneous determination of vancomycin and cephalexin in human plasma was developed by using HPLC-DAD with second-order calibration algorithms.
Le-Qian Hu, Chun-Ling Yin, Ya-Hui Du, Zhi-Peng Zeng   +3 more
doaj   +1 more source

Joint 2-D DOA and Doppler Estimation for L-Shaped Array via Dual PARAFAC With Triple Matching Implementation

IEEE Access, 2019
A dual parallel factor (PARAFAC)-based approach to jointly estimating the two-dimensional direction of arrival (2-D DOA) and Doppler is proposed in this paper, where an L-shaped array consisting of acoustic vector-sensor is used.
Riheng Wu, Le Xu, Zhenhai Zhang, Yangyang Dong   +3 more
doaj   +1 more source

Identifying Metabotypes From Complex Biological Data Using PARAFAC

, 2021
Research have identified large individual variation inphysiological response to diet, which has led to more focused investigations in precision nutrition.
Wallman, Mikael,, Sandberg, Ann-Sofie, Jirstrand, Mats,, Rikard Landberg, Viktor Skantze, Skantze, Viktor, Sandberg, Ann-Sofie,, Mikael Wallman, Skantze, Viktor,, Mats Jirstrand, Carl Brunius, Landberg, Rikard,, Landberg, Rikard, Wallman, Mikael, Brunius, Carl,, Jirstrand, Mats, Ann-Sofie Sandberg, Brunius, Carl   +17 more
core   +1 more source

PARAFAC: A tool for the analysis of phosphor mixture luminescence

, 2016
Parallel factor analysis (PARAFAC) was demonstrated as a tool for the analysis of the time-resolved emission spectra of mixtures of rare-earth phosphors. The time-resolved luminescence spectra of mixtures of europium(III)-doped Gd2O3, Gd2Ti2O7, and GdVO4
Lenhardt, Lea I., Dramićanin, Miroslav
core   +1 more source

Supercritical Fluid Chromatography of Drugs: Parallel Factor Analysis for Column Testing in a Wide Range of Operational Conditions

Journal of Analytical Methods in Chemistry, 2017
Retention mechanisms involved in supercritical fluid chromatography (SFC) are influenced by interdependent parameters (temperature, pressure, chemistry of the mobile phase, and nature of the stationary phase), a complexity which makes the selection of a ...
Ramia Z. Al Bakain, Yahya Al-Degs, Bertyl Andri, Didier Thiébaut, Jérôme Vial, Isabelle Rivals   +5 more
doaj   +1 more source