Similarity Join of XML Documents Stored in File Systems

Joining XML documents, in a data integration environment, is not a trivial task because besides data are stored in several representations (abbreviated, incomplete, or misspelled), XML data are usually organized as collection of values, which requires a different implementation of the join operation. In this paper, we present two similarity join operators, which are used over XML documents stored in file system. The operators have been implemented in a tool, called SimJoiX, which assists in the task of joining data stored in XML files.