Traditional DBMSs decouple statistics collection and query optimization both in space and time. Decoupling in time may lead to outdated statistics. Decoupling in space may cause s...
Amr El-Helw, Ihab F. Ilyas, Wing Lau, Volker Markl...
XML documents are typically queried with a combination of value search and structure search. While querying by values can leverage traditional database technologies, evaluating st...
Haifeng Jiang, Hongjun Lu, Wei Wang 0011, Beng Chi...
The explosion of online content has made the management of such content non-trivial. Web-related tasks such as web page categorization, news filtering, query categorization, tag r...
We consider query optimization techniques for data intensive P2P applications. We show how to adapt an old technique from deductive databases, namely Query-Sub-Query (QSQ), to a s...
Privacy preserving data publishing has attracted considerable research interest in recent years. Among the existing solutions, -differential privacy provides one of the strongest p...