Many location-based services require rich and expressive query language support for filtering large amounts of information. In prominent location-based services thousands of conti...
—An important facility to aid keyword search on XML data is suggesting alternative queries when user queries contain typographical errors. Query suggestion thus can improve users...
Many enterprises nowadays use business processes, based on the BPEL standard, to achieve their goals. These are complex, often distributed, processes. Monitoring the execution of ...
Multidimensional aggregation queries constitute the single most important class of queries for data warehousing applications and decision support systems. The bottleneck in the ev...
Real-world data -- especially when generated by distributed measurement infrastructures such as sensor networks -- tends to be incomplete, imprecise, and erroneous, making it impo...