191 search results - page 16 / 39 » XPath Query Evaluation: Improving Time and Space Efficiency |
COMAD
2009
13 years 9 months ago
2009
XML stream querying problem involves evaluating a given, potentially large, set of query expressions on a continuous stream of XML messages. Since the messages arrive continuously...
SIGMOD
2003
ACM
14 years 8 months ago
2003
ACM
Many applications employ sensors for monitoring entities such as temperature and wind speed. A centralized database tracks these entities to enable query processing. Due to contin...
SIGMOD
2001
ACM
14 years 8 months ago
2001
ACM
Materialized views have been found to be very effective at speeding up queries, and are increasingly being supported by commercial databases and data warehouse systems. However, w...
ICDM
2005
IEEE
14 years 2 months ago
2005
IEEE
In this work, we introduce the new problem of finding time series discords. Time series discords are subsequences of a longer time series that are maximally different to all the r...
RTCSA
2007
IEEE
14 years 2 months ago
2007
IEEE
RFID middleware systems collect and filter RFID streaming data gathered continuously by numerous readers to process requests from applications. These requests are called continuou...