517 search results - page 63 / 104 » Evaluating XPath Queries on XML Data Streams |
87
Voted
SSD
2007
Springer
15 years 6 months ago
2007
Springer
In this paper we study the evaluation of continuous constraint queries (CCQs) for spatiotemporal streams. A CCQ triggers an alert whenever a configuration of constraints between s...
100
Voted
VLDB
2004
ACM
15 years 6 months ago
2004
ACM
The emergence of location-aware services calls for new real-time spatio-temporal query processing algorithms that deal with large numbers of mobile objects and queries. In this de...
91
Voted
VLDB
1999
ACM
15 years 4 months ago
1999
ACM
XML is fast emerging as the dominant standard for representing data in the World Wide Web. Sophisticated query engines that allow users to effectively tap the data stored in XML d...
86
Voted
SIGMOD
2003
ACM
16 years 22 days ago
2003
ACM
Webcams, microphones, pressure gauges and other sensors provide exciting new opportunities for querying and monitoring the physical world. In this paper we focus on querying wide ...
96
Voted
VLDB
2007
ACM
15 years 6 months ago
2007
ACM
A top-k query retrieves the k highest scoring tuples from a data set with respect to a scoring function defined on the attributes of a tuple. The efficient evaluation of top-k q...