Estimating the selectivity of queries is a crucial problem in database systems. Virtually all database systems rely on the use of selectivity estimates to choose amongst the many ...
Well-designed indices can dramatically improve query performance. Including query workload information can produce indices that yield better overall throughput while balancing the...
Active XML is a high-level specification language tailored to dataintensive, distributed, dynamic Web services. Active XML is based on XML documents with embedded function calls. ...
Abstract: Query languages for XML such as XPath or XQuery support Boolean retrieval where a query result is a (possibly restructured) subset of XML elements or entire documents tha...
While information retrieval (IR) and databases (DB) have been developed independently, there have been emerging requirements that both data management and efficient text retrieva...
Jinsuk Kim, Du-Seok Jin, Yunsoo Choi, Chang-Hoo Je...