Results 221 to 230 of about 32,241 (268)

The High-Energy Ion Telescope (HIT) for the Interstellar Mapping And Acceleration Probe (IMAP) Mission. [PDF]

open access: yesSpace Sci Rev
Christian ER   +45 more
europepmc   +1 more source

Chebyshev Accelerated Spectral Clustering

Proceedings of the 14th ACM International Conference on Web Search and Data Mining, 2021
Spectral clustering is widely used in modern data analysis. Spectral clustering methods speed up the computation and keep useful information by reducing dimensionality. Recently, graph signal filtering (GSF) has been introduced to further speed up the dimensionality reduction process by avoiding solving eigenvectors.
Tianyu Yu   +4 more
openaire   +1 more source

Accelerating ptychography with spectral initializations

Quantitative Phase Imaging VII, 2021
Combining synthetic aperture approaches with reference-less setups, ptychography is a promising phase retrieval technique for label-free quantitative phase imaging. Within the phase retrieval community, spectral methods are known to accelerate gradient descent schemes, however their positive effect on experimental ptychographic datasets has not been ...
Lorenzo Valzania   +2 more
openaire   +1 more source

Empirical Correlations between the Spectral Input Energy and Spectral Acceleration

Journal of Earthquake Engineering, 2022
Correlating different intensity measures (IMs) enables the joint consideration of multiple IMs in various performance-based earthquake engineering applications, such as ground motion selection. The correlations between the spectral input energy and spectral accelerations have not been previously examined.
Yin Cheng   +3 more
openaire   +2 more sources

Accelerated Spectral Analysis of Compact Operators

SIAM Journal on Numerical Analysis, 1984
Let K be a linear compact operator in a Banach space. The eigenvalues and eigenelements of K are to be approximated. Let \(\tilde K\) be an operator of a finite rank such that \(r(\Delta)
Dellwo, David R., Friedman, Morton B.
openaire   +2 more sources

Which Spectral Acceleration are you Using?

Earthquake Spectra, 2006
Analysis of the seismic risk to a structure requires assessment of both the rate of occurrence of future earthquake ground motions (hazard) and the effect of these ground motions on the structure (response). These two pieces are often linked using an intensity measure such as spectral acceleration. However, earth scientists typically use the geometric
Jack W. Baker, C. Allin Cornell
openaire   +1 more source

Spatial Correlation of Spectral Acceleration in European Data

Bulletin of the Seismological Society of America, 2012
Abstract Quantification of regional seismic risk is based on spatially correlated random fields and requires modeling of the joint distribution of ground‐motion intensity measures at all sites of interest. In particular, when a portfolio of buildings or a transportation/distribution network (lifeline) is of concern, correlation models for elastic ...
Esposito S., IERVOLINO, IUNIO
openaire   +2 more sources

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