نتایج جستجو برای: spectral moments sequence

تعداد نتایج: 597046  

Journal: :Canadian mathematical bulletin 2021

Abstract We show that the sequence of moments order less than 1 averages i.i.d. positive random variables is log-concave. For at least 1, we conjecture log-convex and this holds eventually for integer (after neglecting first $p^2$ terms sequence).

2015

1. Exact couples and spectral sequences 2 1.1. Spectral sequences 2 1.2. Exact couples 2 1.3. The spectral sequence associated to an exact couple 3 1.4. Example: the spectral sequence of a filtered space 3 References 4 2. Pages of the spectral sequence 4 2.1. Iterated subquotients 4 2.2. Formula for the rth page 5 2.3. Filtered spaces 6 3. Convergence 6 3.1. Simplest case: first quadrant spectr...

2017
Charalambos Themistocleous

Several studies have explored the acoustic structure of fricatives, yet there has been very little acoustic research on the effects of dialects on the production of fricatives. This article investigates the effects of two linguistically proximal Modern Greek dialects, Athenian Greek and Cypriot Greek on the temporal, spectral, and coarticulatory properties of fricatives and aims to determine th...

2010
Z. Li H. Jin

The use of appropriate features to characterize an output class or object is critical for all classification problems. This paper evaluates the capability of several spectral and texture features for object-based vegetation classification at the species level using airborne high resolution multispectral imagery. Image-objects as the basic classification unit were generated through image segment...

2013
Aissam Bekkari Mostafa El yassa Soufiane Idbraim Driss Mammass Azeddine Elhassouny Danielle Ducrot

The classification of remote sensing images has done great forward taking into account the image’s availability with different resolutions, as well as an abundance of very efficient classification algorithms. A number of works have shown promising results by the fusion of spatial and spectral information using Support Vector Machines (SVM) which are a group of supervised classification algorith...

2013
JOHN ULLMAN John Ullman

We introduce a variant of the slice spectral sequence which uses only regular slice cells, and state the precise relationship between the two spectral sequences. We analyze how the slice filtration of an equivariant spectrum that is concentrated over a normal subgroup is related to the slice filtration of its geometric fixed points, and use this to prove a conjecture of Hill on the slice filtra...

Journal: :CoRR 2011
Abdul Kadir Lukito Edi Nugroho Adhi Susanto Paulus Insap Santosa

This paper proposed a method that combines Polar Fourier Transform, color moments, and vein features to retrieve leaf images based on a leaf image. The method is very useful to help people in recognizing foliage plants. Foliage plants are plants that have various colors and unique patterns in the leaf. Therefore, the colors and its patterns are information that should be counted on in the proce...

Journal: :Proceedings of the American Mathematical Society 1977

Journal: :Proceedings of the National Academy of Sciences 1978

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