Data Management

Conditional Functional Dependencies in Data Cleaning

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Executive Summary

Functional dependency is an important feature for referencing to the relationship between attributes and candidate key in tuples. It also shows the relationship between entities in a data world. For data cleaning one typically needs a simple extension of traditional FDs that suffices to capture data inconsistencies commonly found in practice without incurring unnecessary complexity. So the authors propose a class of integrity constraints for relational databases referred to as conditional functional dependencies and their application in data cleaning.

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