Results 21 to 30 of about 1,503 (160)

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

Analysis of the source of DOM in underground reservoir of coal mine

open access: yes矿业科学学报, 2020
For an in-depth understanding of the change process of dissolved organic matter(DOM) in water environment of coal mine underground reservoir, this study used the three dimensional fluorescence spectrum(EEMs), combined with PARAFAC model, to analyze ...
Han Jiaming   +5 more
doaj   +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

Candecomp/Parafac: From Diverging Components to a Decomposition in Block Terms [PDF]

open access: yesSIAM Journal on Matrix Analysis and Applications, 2012
Fitting an R-component Candecomp/Parafac (CP) decomposition to a multiway array or higher-order tensor Z is equivalent to finding a best rank-R approximation of Z. Such a best rank-R approximation may not exist due to the fact that the set of multiway arrays with rank at most R is not closed. In this case, trying to compute the approximation results in
openaire   +2 more sources

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

DECODING SSVEP RESPONSES BASED ON PARAFAC DECOMPOSITION [PDF]

open access: yesProceedings of the International Conference on Bio-inspired Systems and Signal Processing, 2012
In this position paper, we investigate whether a parallel factor analysis (Parafac) decomposition is beneficial to the decoding of steady-state visual evoked potentials (SSVEP) present in electroencephalogram (EEG) recordings taken from the subject’s scalp.
Manyakov, Nikolay V.   +5 more
openaire   +3 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

Co-PARAFAC: A Novel Cost-Efficient Scalable Tensor Decomposition Algorithm

open access: yesIEEE Access
This paper proposes a novel tensor decomposition method, cooperative parallel factor (Co-PARAFAC), that is devised to achieve higher accuracy with lower computational complexity and memory requirements than the conventional PARAFAC.
Farshad Shams   +2 more
doaj   +1 more source

Transmit Beamspace-Based Unitary Parallel Factor Method for DOD and DOA Estimation in Bistatic MIMO Radar

open access: yesIEEE Access, 2018
In this paper, a novel transmit beamspace (TB)-based unitary parallel factor (PARAFAC) algorithm is proposed for direction-of-departure (DOD) and direction-of-arrival estimation in bistatic multiple-input multiple-output (MIMO) radar.
Baoqing Xu, Yongbo Zhao
doaj   +1 more source

Landscape Influence on the Browning of a Lake Watershed in the Adirondack Region of New York, USA

open access: yesSoil Systems, 2020
Watershed recovery from long-term acidification in the northeastern U.S. has been characterized by an increase in the influx of dissolved organic matter (DOM) into surface waters.
Nicholas A. LoRusso   +5 more
doaj   +1 more source

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