Discovering XML conditional functional dependencies based on content-aware.

For XML functional dependency (XFD) does not adequately capture conditional semantics partially expressed in some fragments of the XML document, opposing to the notion of conditional functional dependencies in relational databases, considering the structure and nature of XML data, this paper proposed discovering XML conditional functional dependencies (XCFD) based on content-aware(CAD) which bound specific constants to particular elements that cover situations of dependencies under some conditions to detects data consistency and improve the quality of the data. Additionally, this paper described the detailed approach. The approach of CAD incorporated pruning rules into discovering process which maintain XCFD was minimal and non-redundancy to reduce the searching lattice and the number of XCFD candidates to be checked on the dataset to improve searching performance. The case studies and comparative evaluation demonstrate the effectiveness of XCFD based on CAD than existing XFD on finding more functional dependencies and semantic constraints. [ABSTRACT FROM AUTHOR]