27756 search results - page 52 / 5552 » Process Query Systems |
SIGMOD
2006
ACM
14 years 10 months ago
2006
ACM
In this paper, we present the design, implementation, and evaluation of a system that executes complex event queries over real-time streams of RFID readings encoded as events. The...
IDEAS
2010
IEEE
13 years 8 months ago
2010
IEEE
Even though an effective cost-based query optimizer is of utmost importance for the efficient evaluation of XQuery expressions in native XML database systems, such a component is...
SIGMOD
2005
ACM
14 years 3 months ago
2005
ACM
One of the most powerful features of SQL is the use of nested queries. Most research work on the optimization of nested queries focuses on aggregate subqueries. However, the solut...
EMNLP
2007
13 years 11 months ago
2007
Query segmentation is the process of taking a user’s search-engine query and dividing the tokens into individual phrases or semantic units. Identification of these query segmen...
DEBS
2009
ACM
14 years 4 months ago
2009
ACM
Efficient matching of incoming events to persistent queries is fundamental to event pattern matching, complex event processing, and publish/subscribe systems. Recent processing e...