Results 11 to 20 of about 70,218 (315)
Cross Table Cubing: Mining Iceberg Cubes from Data Warehouses [PDF]
All of the existing (iceberg) cube computation algorithms assume that the data is stored in a single base table, however, in practice, a data warehouse is often organized in a schema of multiple tables, such as star schema and snowflake schema. In terms of both computation time and space, materializing a universal base table by joining multiple tables ...
Cheung, DWL, Cho, M, Pei, J
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Reduced Quotient Cube: Maximize Query Answering Capacity in OLAP
The data cube is a critical tool for accelerating online analysis in big data. Due to its exponential space overhead, the quotient cube, as the main data cube compression approach, was proposed to significantly reduce the number of data cells if they are
Quankun Wang +5 more
doaj +1 more source
Think global, cube local: an Earth Observation Data Cube’s contribution to the Digital Earth vision
The technological landscape for managing big Earth observation (EO) data ranges from global solutions on large cloud infrastructures with web-based access to self-hosted implementations. EO data cubes are a leading technology for facilitating big EO data
Martin Sudmanns +7 more
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Data Cube on Demand (DCoD): Generating an earth observation Data Cube anywhere in the world
To tackle Big Data challenges such as Volume, Variety, and Velocity, the Earth Observations Data Cube (EODC) concept has emerged as a solution for lowering barriers and offering new possibilities to harness the information power of satellite EO data ...
Gregory Giuliani +4 more
doaj +1 more source
Parallelizing the Data Cube [PDF]
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Dehne, Frank +3 more
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Achieving the Full Vision of Earth Observation Data Cubes
Earth observation imagery have traditionally been expensive, difficult to find and access, and required specialized skills and software to transform imagery into actionable information. This has limited adoption by the broader science community.
Steve Kopp +5 more
doaj +1 more source
3iCubing: An Interval Inverted Index Approach to Data Cubes
The increase in the amounts of information used to analyze data is problematic since the memory necessary to store and process it is getting quite big. The interval inverted index representation was developed to reduce the required memory to store data ...
Marco Domingues +2 more
doaj +1 more source
Mapping of Flood Areas Using Landsat with Google Earth Engine Cloud Platform
The Earth Observation (EO) domain can provide valuable information products that can significantly reduce the cost of mapping flood extent and improve the accuracy of mapping and monitoring systems. In this study, Landsat 5, 7, and 8 were utilized to map
Hamid Mehmood +2 more
doaj +1 more source
Multi-Source and Multi-Temporal Image Fusion on Hypercomplex Bases
This article spanned a new, consistent framework for production, archiving, and provision of analysis ready data (ARD) from multi-source and multi-temporal satellite acquisitions and an subsequent image fusion.
Andreas Schmitt +5 more
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Earth Observation Data Cubes [PDF]
Satellite Earth observation (EO) data have already exceeded the petabyte scale and are increasingly freely and openly available from different data providers.
Giuliani, Gregory (Ed.) +3 more
openaire +3 more sources

