Schemaless Representation of Semistructured Data and Schema Construction

We should consider semistructured data of which have a weak schema information in networked information world. To manage such semistructured data eeciently, this paper introduces a data model for semistructured data and operations for schema construction. We transform semistructured data into structured one by introducing schema construction methodology, compared to the former studies which are fully dependent on schemaless manipulations. For schema construction, we deened operations for building IS-A/IS-PART-OF relationships, collecting data objects to build a primitive class, and merging two data instances or classes.