Encoding data stored in a column-oriented manner

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United States of America Patent

PATENT NO 9325344
APP PUB NO 20120143913A1
SERIAL NO

13206827

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Abstract

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Data stored in a column-oriented manner is encoded using a data mining algorithm for finding column patterns among a set of data tuples, where each data tuple contains a set of columns, and the data mining algorithm treats all columns and all column combinations and column ordering similarly or in the same manner when looking for column patterns. Column values are ordered occurring in the column patterns based on their frequencies into a prefix tree, where the prefix tree defines a pattern order. The data tuples are sorted according to the pattern order, resulting in sorted data tuples, and columns of the sorted data tuples are encoded using run-length encoding.

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Patent Owner(s)

  • INTERNATIONAL BUSINESS MACHINES CORPORATION

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Beier, Felix Benshausen, DE 55 151
Draese, Oliver Holzgerlingen, DE 32 352
Stolze, Knut Jena, DE 102 1098

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