Results 21 to 30 of about 324,518 (313)

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

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

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

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   +2 more sources

Comparison of multi-source satellite images for classifying marsh vegetation using DeepLabV3 Plus deep learning algorithm

open access: yesEcological Indicators, 2021
The accurate classification of wetland vegetation is essential for rapid assessment and management. The Honghe National Nature Reserve (HNNR), located in Northeast China, was studied.
Man Liu   +7 more
doaj   +1 more source

Generalized spectral tests for the martingale difference hypothesis [PDF]

open access: yes, 2006
This article proposes a test for the martingale difference hypothesis (MDH) using dependence measures related to the characteristic function. The MDH typically has been tested using the sample autocorrelations or in the spectral domain using the ...
Velasco Gómez, Carlos   +4 more
core   +1 more source

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

Maximum flatness spectral modeling [PDF]

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

Spectral-based printer modeling and characterization [PDF]

open access: yesJournal of Electronic Imaging, 2005
Spectral characterization involves building a model that relates the device dependent representation to the reflectance func- tion of the printed color, usually represented with a high number of reflectance samples at different wavelengths. Look-up table-based approaches, conventionally employed for colorimetric device char- acterization cannot be ...
Silvia Zuffi   +2 more
openaire   +4 more sources

Комплекс программ моделирования геодинамо на основе спектральных эредитарных моделей

open access: yesVestnik KRAUNC: Fiziko-Matematičeskie Nauki
Исследование задачи геодинамо часто проводят на основе спектральных моделей, когда поля задачи полностью или частично раскладываются по собственным полям (модам) подходящих спектральных задач.
Водинчар, Г.М.   +2 more
doaj   +1 more source

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