Results 31 to 40 of about 5,105 (201)

Fluorescence spectroscopy and multi-way techniques. PARAFAC [PDF]

open access: yes, 2013
PARAllel FACtor analysis (PARAFAC) is increasingly used to decompose fluorescence excitation emission matrices (EEMs) into their underlying chemical components.
Stedmon, Colin A.   +9 more
core   +1 more source

Application of inorganic-organic comprehensive index in identifying water inrush source of coal seam roof

open access: yesMeikuang Anquan, 2023
Conventional inorganic hydrochemical parameters are difficult to distinguish the water source of coal seam roof water gushing in some mine fields. In order to solve this problem, a mine field in Yuheng Mining Area is taken as the research area.
Junqing SUN   +5 more
doaj   +1 more source

A New Algorithm to Solve Parafac-Model

open access: yesBehaviormetrika, 1982
PARAFAC is a three mode factor analytic method developed by R.A. Harshman and is useful for data analysis. The fundamental idea says $${x_{ijk}} \approx \sum\limits_s^S {a_{is}}{b_{js}}{c_{ks}}$$ where xijk is given by measurement for i=1, 2…,I, j=1, 2,…, J, k ...
Hayashi, Chikio, Hayashi, Fumi
openaire   +1 more source

Joint Two-Dimensional DOA and Frequency Estimation for L-Shaped Array via Compressed Sensing PARAFAC Method

open access: yesIEEE Access, 2018
In this paper, we combine the compressed sensing theory with the parallel factor (PARAFAC) model to present a 2-D direction of arrival (2D-DOA) and a frequency estimation algorithm for an L-shaped array. We first build the multi-delay outputs data as the
Le Xu   +3 more
doaj   +1 more source

Evaluating the potential of Volterra-PARAFAC IIR models [PDF]

open access: yes2013 IEEE International Conference on Acoustics, Speech and Signal Processing, 2013
The Volterra-PARAFAC (VP) nonlinear system model, which consists of a FIR filterbank followed by a memoryless nonlin-earity, aims at offering a good compromise between accuracy and parametric complexity. Here, for an even better compromise , we propose a generalization with IIR filters (VPI model) and evaluate both models.
Phillip Mark Seymour Burt   +1 more
openaire   +2 more sources

HPLC-MS data of plant extracts and PARAFAC-based algorythm

open access: yes, 2019
This dataset is uploaded as supplementary material for article "A new PARAFAC-based algorithm for HPLC-MS data treatment: Herbal extracts ...
Turova, P (via Mendeley Data)
core   +5 more sources

Identification of oil contamination in process water using fluorescence excitation emission matrix (FEEM) and parallel factor analysis (PARAFAC)

open access: yesWater Science and Technology
Fuel oil is widely used within Eskom, a power generation company in South Africa. Eskom's coal-fired power stations use up to 30,000 L of fuel oil per hour during a cold start-up, a consequence of which results in oil leaks to the dams. Oil contamination
Heena Madhav, Adam Gilmore
doaj   +1 more source

Non-Gaussian Penalized PARAFAC Analysis for fMRI Data

open access: yesFrontiers in Applied Mathematics and Statistics, 2019
Independent Component Analysis (ICA) method has been used widely and successfully in functional magnetic resonance imaging (fMRI) data analysis for both single and group subjects. As an extension of the ICA, tensorial probabilistic ICA (TPICA) is used to
Jingsai Liang   +3 more
doaj   +1 more source

Parallel Factorization to Implement Group Analysis in Brain Networks Estimation

open access: yesSensors, 2023
When dealing with complex functional brain networks, group analysis still represents an open issue. In this paper, we investigated the potential of an innovative approach based on PARAllel FActorization (PARAFAC) for the extraction of the grand average ...
Andrea Ranieri   +5 more
doaj   +1 more source

PARAFAC-regression analysis for determination of the concentration of substances in solutions [PDF]

open access: yes, 2008
Розглянуто регресійну задачу визначення концентрації речовин у розчинах на основі математичної моделі паралельного факторного аналізу (PARAFAC-моделі). Наведено оцінки параметрів регресійної PARAFAC-моделі.
Муха, В.С.
core   +1 more source

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