Results 21 to 30 of about 7,646,007 (306)

Spectral detection in the censored block model [PDF]

open access: yes2015 IEEE International Symposium on Information Theory (ISIT), 2015
We consider the problem of partially recovering hidden binary variables from the observation of (few) censored edge weights, a problem with applications in community detection, correlation clustering and synchronization. We describe two spectral algorithms for this task based on the non-backtracking and the Bethe Hessian operators. These algorithms are
Saade, Alaa   +3 more
openaire   +6 more sources

A LIBS Spectral Self-Absorption Correction Method Using Voigt Profile Fitting for the Application of Magnesium Analysis in Phosphorus Ore

open access: yes, 2020
The concentration of MgO is one of the most important parameters in the phosphate ore flotation. The fast detection of the concentration of MgO has great significance for the optimization of the flotation, the improvement of the efficiency and the ...
Sun Lan-xiang   +4 more
core   +1 more source

Singular-spectral climate models [PDF]

open access: yesE3S Web of Conferences
In this paper, the singular spectrum analysis method is used to construct data models for the Onega Lake basin: time series of air temperature, precipitation, and runoff of the Shuya, Suna, and Vodla rivers.
Belashev Boris
doaj   +1 more source

A Spectral Model of Turnover Reduction [PDF]

open access: yesEconometrics, 2015
We give a simple explicit formula for turnover reduction when a large number of alphas are traded on the same execution platform and trades are crossed internally. We model turnover reduction via alpha correlations. Then, for a large number of alphas, turnover reduction is related to the largest eigenvalue and the corresponding eigenvector of the alpha
openaire   +6 more sources

Spectral compressive sensing with model selection [PDF]

open access: yes2014 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2014
5 pages, 2 figures, 1 table, published in ICASSP ...
Zhenqi Lu   +5 more
openaire   +4 more sources

Spectral Methods for Nonparametric Models

open access: yesCoRR, 2017
Keywords: Spectral Methods, Indian Buffet Process, Hierarchical Dirichlet ...
Hsiao-Yu Fish Tung   +3 more
openaire   +2 more sources

A Statistical and Spectral Model for Representing Noisy Sounds with Short-Time Sinusoids

open access: yesEURASIP Journal on Advances in Signal Processing, 2005
We propose an original model for noise analysis, transformation, and synthesis: the CNSS model. Noisy sounds are represented with short-time sinusoids whose frequencies and phases are random variables.
Myriam Desainte-Catherine   +1 more
doaj   +1 more source

Extraction of blue roofs using BRSAM and the newly created spectral index derived from WorldView-2/3 imagery

open access: yesHeliyon, 2022
To extract blue roofs (BRs) from remote sensing images quickly, first, this study used WorldView-2 and WorldView-3 as the data sources and created a new BR spectral area model (BRSAM) using the polygon area difference between the spectral curves of BRs ...
Huaipeng Liu, Xiaoqing Zuo
doaj   +1 more source

Maximum flatness spectral modeling [PDF]

open access: yesIEEE Transactions on Acoustics, Speech, and Signal Processing, 1990
Peer ...
openaire   +3 more sources

Non-destructive monitoring of amylose content in rice by UAV-based hyperspectral images

open access: yesFrontiers in Plant Science, 2022
Amylose content (AC) is an important indicator for rice quality grading. The rapid development of unmanned aerial vehicle (UAV) technology provides rich spectral and spatial information on observed objects, making non-destructive monitoring of crop ...
Fumin Wang   +8 more
doaj   +1 more source

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