Distributed databases and other networked information systems use copies or mirrors to reduce latency and to increase availability. Copies need to be refreshed. In a loosely coupl...
The problem of statistics and aggregate maintenance over data streams has gained popularity in recent years especially in telecommunications network monitoring, trend-related anal...
Access Control policies in e-commerce domain can be quite complex, affecting the response time provided to the users. We describe an event-based access control system that can pot...
XML path queries form the basis of complex filtering of XML data. Most current XML path query processing techniques can be divided in two groups. Navigation-based algorithms compu...
Nicolas Bruno, Luis Gravano, Nick Koudas, Divesh S...
Query optimizers use base-table statistics to derive statistics on the sub-plans that are enumerated during optimization. In practice, traditional optimizers rely on a number of s...
We present LegoDB, a cost-based XML storage mapping engine that automatically explores a space of possible XML-to-relational mappings and selects an efficient mapping for a given ...
We demonstrate the Lixto Suite, a web data extraction and transformation software kit for retrieving and converting information from various sources to various customer devices. W...
Robert Baumgartner, Michal Ceresna, Georg Gottlob,...
We present a novel streaming algorithm for evaluating XPath expressions that use backward axes (parent and ancestor) and forward axes in a single document-order traversal of an XM...
Charles Barton, Philippe Charles, Deepak Goyal, Mu...