Modern database systems provide not only powerful data models but also complex query languages supporting powerful features such as the ability to create new database objects and ...
The XQuery formalization is an ongoing effort of the W3C XML Query working group to define a precise formal semantics for XQuery. This paper briefly introduces the current state o...
Abstract. The structural heterogeneity and complexity of XML repositories makes query formulation challenging for users who have little knowledge of XML. To assist its users, an XM...
— To generate plans for collecting data for data mining, an important problem is information volatility during planning: the information needed by the planning system may change ...