Data reduction method and apparatus
AssigneeSiemens Aktiengesellschaft
InventorsAlexander Pyayt, Sergey Zobnin
Life of this patent
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Abstract
A data reduction for reducing highly correlated data (e.g., highly correlated data streams) is provided. Correlated data of a plurality of data streams are identified, and a spectral dimensional decomposition is performed. In this way, information from the data of the data streams may be exploited, and this information may be used in order to achieve a highly efficient reduction of the data. In this way, the compression ratio of the data may be enhanced or the data loss of the reduce data compression may be minimized.
Claims17
A data reduction method comprising:
- obtaining a set of data;
- identifying groups of correlated data in the set of data;
- obtaining spectral decomposition components and factors, the obtaining of the spectral decomposition components and factors comprising performing a spectral dimensionality decomposition for the groups of correlated data;
- and
- outputting the obtained spectral decomposition components and factors.
A data reduction apparatus for reducing an amount of data in a set of data, the data reduction apparatus comprising:
- a similarity identification unit configured to identify groups of correlated data in the set of data;
- and
- a spectral dimensionality decomposition unit configured to:
- perform a spectral dimensionality decomposition for the groups of correlated data;
- and
- provide spectral decomposition components and factors.
A data reconstruction apparatus comprising:
- a receiver configured to receive spectral decomposition components and factors transmitted by a data reduction apparatus for reducing an amount of data in a set of data, the data reduction apparatus comprising a similarity identification unit configured to identify groups of correlated data in the set of data, a spectral dimensionality decomposition unit configured to perform a spectral dimensionality decomposition for the groups of correlated data and provide spectral decomposition components and factors, and a transmitter configured to transmit the spectral decomposition components and factors;
- and
- a reconstruction unit configured to reconstruct the set of data based on the received spectral decomposition components and factors.
A measurement system comprising:
- a plurality of sensors, wherein each sensor of the plurality of sensors is configured to provide a data stream;
- and
- a data reduction apparatus for reducing an amount of data in a set of data, the data reduction apparatus comprising a similarity identification unit configured to identify groups of correlated data in the set of data, and a spectral dimensionality decomposition unit configured to perform a spectral dimensionality decomposition for the groups of correlated data and provide spectral decomposition components and factors,
- wherein the data reduction apparatus is adapted to perform a data reduction of the data streams provided by the plurality of sensors.
A computer program product comprising a non-transitory computer-readable storage medium storing instructions executable by one or more processors to reduce an amount of data, the instructions comprising:
- obtaining a set of data;
- identifying groups of correlated data in the set of data;
- obtaining spectral decomposition components and factors, the obtaining of the spectral decomposition components and factors comprising performing a spectral dimensionality decomposition for the groups of correlated data;
- and
- outputting the obtained spectral decomposition components and factors.
Dependencies are inferred from the claim text.