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    • 9. 发明申请
    • Comprehensive algebraic relationship discovery in databases
    • 数据库中的综合代数关系发现
    • US20070282784A1
    • 2007-12-06
    • US11443084
    • 2006-05-31
    • Natwar ModaniHarald Clyde Smith
    • Natwar ModaniHarald Clyde Smith
    • G06F17/30
    • G06F16/217
    • The present invention provides methods and systems for discovering and determining algebraic relationships between sets of data, such as numeric columns in a relational database, based on a “bottom-up” (or data-driven) approach. Embodiments of the present invention provide for the discovery and determination of algebraic relationships within a single relation or algebraic relationships across multiple tables that can be joined via a foreign key relationship. The foreign key relation can be one-to-one, many-to-one, or one-to-many. In order to discover algebraic relations, mean, variance and correlations calculations between columns are performed, for example, based on taking samples of the columns. Irreducible relations are then determined. Samples are taken from the irreducible relations and algebraic relationships between columns are determined based on various calculation techniques and correlations between the columns.
    • 本发明提供了基于“自下而上”(或数据驱动)方法来发现和确定数据集之间的代数关系的方法和系统,例如关系数据库中的数字列。 本发明的实施例提供了在单个关系中的代数关系的发现和确定,以及可以经由外键关系连接的多个表之间的代数关系。 外键关系可以是一对一,一对一,一对多。 为了发现代数关系,执行列之间的平均值,方差和相关性计算,例如,基于获取列的样本。 然后确定不可约束的关系。 样本取自不可约关系,列之间的代数关系根据各种计算技术和列之间的相关性来确定。