Results 31 to 40 of about 173,446 (343)

Integrating Open Data Cube and Brazil Data Cube Platforms for Land Use and Cover Classifications

open access: yesRevista Brasileira de Cartografia, 2021
The potential to perform spatiotemporal analysis of the Earth's surface, fostered by a large amount of Earth Observation (EO) open data provided by space agencies, brings new perspectives to create innovative applications.
Felipe Menino Carlos   +5 more
doaj   +1 more source

The Spectral Correlation Function -- A New Tool for Analyzing Spectral-Line Maps [PDF]

open access: yes, 1999
The "spectral correlation function" analysis we introduce in this paper is a new tool for analyzing spectral-line data cubes. Our initial tests, carried out on a suite of observed and simulated data cubes, indicate that the spectral correlation function [
Goodman, Alyssa A.   +3 more
core   +4 more sources

Optimizing Selections over Data Cubes [PDF]

open access: yes, 1998
Datacube queries compute aggregates over data base relations at a variety of granularities, and they constitute an important class of decision support queries.
Ross, Kenneth A., Zaman, Kazi A.
core   +2 more sources

Motion magnification in coronal seismology [PDF]

open access: yes, 2016
We introduce a new method for the investigation of low-amplitude transverse oscillations of solar plasma non-uniformities, such as coronal loops, individual strands in coronal arcades, jets, prominence fibrils, polar plumes, and other contrast features ...
Anfinogentov, Sergey   +1 more
core   +2 more sources

On-Demand Processing of Data Cubes from Satellite Image Collections with the gdalcubes Library

open access: yesData, 2019
Earth observation data cubes are increasingly used as a data structure to make large collections of satellite images easily accessible to scientists. They hide complexities in the data such that data users can concentrate on the analysis rather than on ...
Marius Appel, Edzer Pebesma
doaj   +1 more source

Using OLAP Data Cubes in Business Intelligence

open access: yesScientific Bulletin, 2016
The purpose of this paper is to demonstrate that it is possible to develop business intelligence projects in big and medium-size organizations, only with Microsoft products, used in accordance with standard OLAP cube technology, and presented possible ...
Cristescu Marian Pompiliu
doaj   +1 more source

An Ontology-Based Framework for Geospatial Integration and Querying of Raster Data Cube Using Virtual Knowledge Graphs

open access: yesISPRS International Journal of Geo-Information, 2023
The integration of the raster data cube alongside another form of geospatial data (e.g., vector data) raises considerable challenges when it comes to managing and representing it using knowledge graphs.
Younes Hamdani   +3 more
doaj   +1 more source

A New Endmember Extraction Method Based on Least Squares

open access: yesCanadian Journal of Remote Sensing, 2022
Endmember extraction is frequently adopted to detect spectrally unique signatures of pure ground materials in hyperspectral imagery. These endmembers are the purest pixels in the HSI data cubes. Every pixel in a HSI data cube can be expressed as a linear
Guangyi Chen, Adam Krzyzak, Shen-En Qian
doaj   +1 more source

KMOS Data Flow: Reconstructing Data Cubes in One Step

open access: yes, 2010
KMOS is a multi-object near-infrared integral field spectrometer with 24 deployable pick-off arms. Data processing is inevitably complex. We discuss specific issues and requirements that must be addressed in the data reduction pipeline, the calibration ...
Berbel, Alex Agudo   +4 more
core   +1 more source

A MUSE map of the central Orion Nebula (M 42) [PDF]

open access: yes, 2015
We present a new integral-field spectroscopic dataset of the central part of the Orion Nebula (M 42), observed with the MUSE instrument at the ESO VLT. We reduced the data with the public MUSE pipeline.
Bacon, Roland   +17 more
core   +5 more sources

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