Results 31 to 40 of about 230,605 (276)

Automatic Registration Of SAR And Optical Image Based On Line And Graph Spectral Theory [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2014
In this paper, a novel registration method is proposed by integrating the graph spectral theory and line features. The principal steps of our algorithm are as follows.
J. Zhao, S. Gao, H. Sui, Y. Li, L. Li
doaj   +1 more source

Sampling and Reconstruction of Sparse Signals on Circulant Graphs - An Introduction to Graph-FRI

, 2017
With the objective of employing graphs toward a more generalized theory of signal processing, we present a novel sampling framework for (wavelet-)sparse signals defined on circulant graphs which extends basic properties of Finite Rate of Innovation (FRI)
Dragotti, Pier Luigi, Kotzagiannidis, Madeleine S.   +1 more
core   +1 more source

Sum-edge characteristic polynomials of graphs

Journal of Taibah University for Science, 2019
Modelling a chemical compound by a (molecular) graph helps us to obtain some required information about the chemical and physical properties of the corresponding molecular structure.
Mert Sinan Oz, Cilem Yamac, Ismail Naci Cangul   +2 more
doaj   +1 more source

Spatio–Spectral Limiting on Replacements of Tori by Cubes

Mathematics, 2023
A class of graphs is defined in which each vertex of a discrete torus is replaced by a Boolean hypercube in such a way that vertices in a fixed subset of each replacement cube are adjacent to corresponding vertices of a neighboring replacement cube ...
Jeffrey A. Hogan, Joseph D. Lakey
doaj   +1 more source

Spectral Graph Analysis for Process Monitoring [PDF]

, 2014
Process monitoring is a fundamental task to support operator decisions under ab- normal situations. Most process monitoring approaches, such as Principal Components Analysis and Locality Preserving Projections, are based on dimensionality reduction.
Bakshi B., Belkin M., Bondy J. A., Castaño Arranz M., Cvetković D., Cvetković D. M., Downs J., Estanislao Musulin, Ge Z., Ge Z., Gutierrez-Perez J., Gutman I., Gutman I., Gutman I., He X., Jackson J., Kano M., Ku W., Lyman P., Mohar B., Mohar B., Musulin E., Musulin E., Nikiforov V., Nikiforov V., Nomikos P., Qin S. J., Roweis S. T., Tenenbaum J. B., Tong C., Trefethen L. N., van der Maaten L. J. P., Venkatasubramanian V., Venkatasubramanian V., Venkatasubramanian V., von Luxburg U., Xie X., Yang F., Yu J., Zhang M., Zumoffen D.   +40 more
core   +2 more sources

A short-graph Fourier transform via personalized PageRank vectors

, 2016
The short-time Fourier transform (STFT) is widely used to analyze the spectra of temporal signals that vary through time. Signals defined over graphs, due to their intrinsic complexity, exhibit large variations in their patterns.
Sapiro, Guillermo, Tepper, Mariano
core   +1 more source

First Hyper Zagreb Spectral Radii of Splitting and Shadow Graphs

Scientific Annals of Computer Science
The spectral radius RS of graph G is a spectral invariant derived from the eigenvalues of the associated matrix for a graph G. It is widely used in fields such as computer science, chemistry, biology, and network analysis.
Ahmad Bilal, Muhammad Mobeen Munir
doaj   +1 more source

Harmonic analysis of finite lamplighter random walks

, 2007
Recently, several papers have been devoted to the analysis of lamplighter random walks, in particular when the underlying graph is the infinite path $\mathbb{Z}$. In the present paper, we develop a spectral analysis for lamplighter random walks on finite
Scarabotti, Fabio, Tolli, Filippo
core   +1 more source

RIPK4 function interferes with melanoma cell adhesion and metastasis

Molecular Oncology, EarlyView.
RIPK4 promotes melanoma growth and spread. RIPK4 levels increase as skin lesions progress to melanoma. CRISPR/Cas9‐mediated deletion of RIPK4 causes melanoma cells to form less compact spheroids, reduces their migratory and invasive abilities and limits tumour growth and dissemination in mouse models.
Norbert Wronski, Sławomir Lasota, Ewelina Madej, Anna A. Brożyna, Małgorzata Szczygieł, Agnieszka Harazin‐Lechowska, Jan Czerbniak, Janusz Rys, Jaroslaw Czyz, Agnieszka Wolnicka‐Glubisz   +9 more
wiley   +1 more source

Tensor Spectral Clustering for Partitioning Higher-order Network Structures

, 2015
Spectral graph theory-based methods represent an important class of tools for studying the structure of networks. Spectral methods are based on a first-order Markov chain derived from a random walk on the graph and thus they cannot take advantage of ...
Benson, Austin R., Gleich, David F., Leskovec, Jure   +2 more
core   +1 more source