Patent · US Active

Discovering transformations applied to a source table to generate a target table

US9720971B2 · kind B2 · utility

3Cited by

56References

28Claims

0Family size

Assignee

International Business Machines Corporation · US

Inventors

Torsten Bittner · Redmond, US
Holger Kache · Munich, DE
Mary Ann Roth · San Jose, US
Yannick Saillet · Stuttgart, DE

Key dates

Filing date	Jun 30, 2008
Grant date	Aug 1, 2017
Priority date	—
Expiry date	Jan 25, 2033

Classification

Technology area (CPC G)Physics
CPC primaryG06F16/24564
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

Provided are a method, system, and article of manufacture for discovering transformations applied to a source table to generate a target table. Selection is made of a source table comprising a plurality of rows and a target table resulting from a transformation applied to the rows of the source table. A first pre-processing method is applied with respect to columns in the source and target tables to produce first category pre-processing output. The first category pre-processing output is used to determine first category transformation rules with respect to at least one source table column and at least one target table column. For each unpredicted target column in the target table not predicted by the determined first category transformation rules, a second pre-processing method is applied to columns in the source table and unpredicted target columns to produce second category pre-processing output. The second category pre-processing output is used to determine second category transformation rules with respect to at least one source table column and at least one target table column.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.