Rewriting queries using views is a powerful technique that has applications in data integration, data warehousing and query optimization. Query rewriting in relational databases i...
We investigate a class of path constraints that is of interest in connection with both semistructured and structured data. In standard database systems, constraints are typically ...
With the explosion in the amount of semi-structured data users access and store, there is a need for complex search tools to retrieve often very heterogeneous data in a simple and ...
XML is here as the internet standard for information exchange among e-businesses and applications. With its dramatic adoption and its ability to model structured, unstructured and...
Abstract. XML provides a natural mechanism for representing semistructured and unstructured data. It becomes the basis for encoding a large variety of information, for example, the...