Automatic attribute structural variation detection for not only structured query language database

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United States of America Patent

PATENT NO 11093458
APP PUB NO 20190317927A1
SERIAL NO

16454981

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Abstract

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Methods and a system are provided. A method includes automatically detecting, by an attribute structural variation detector, attribute structural variations in record schemas of a database lacking schema enforcement. The automatically detecting step includes encoding, by an encoder, nodes in the record schemas based on respective updated node labels to obtain a plurality of codes. The encoding step comprises, for each of the plurality of codes: recording, by a label frequency counter, a frequency f1 of the record schemas that include a given label; and recording, by a label frequency counter, a frequency fc of the record schemas that use a given one of the plurality of codes to update a label of a next level. An attribute variation is detected and retrieved responsive to the frequency fc≠0, and the frequency f1>(two times the frequency fc).

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Patent Owner(s)

Patent OwnerAddress
INTERNATIONAL BUSINESS MACHINES CORPORATIONNEW ORCHARD ROAD ARMONK NY 10504

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cao, Zhao Beijing, CN 19 128
Shi, Ju Wei Beijing, CN 40 418
Wang, Chen Beijing, CN 476 3329
Wang, Lanjun Beijing, CN 23 96
Zhang, Shuo Beijing, CN 162 436

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