2468 search results - page 199 / 494 » Aggregation operators 2003 |
ICDT
1997
ACM
14 years 2 months ago
1997
ACM
Abstract. The goal of this paper is to study tractable iteration mechanisms for bags. The presence of duplicates in bags prevents iteration mechanisms developed in the context of s...
VLDB
1994
ACM
14 years 2 months ago
1994
ACM
In existing relational database systems, processing of group-by and computation of aggregate functions are always postponed until all joins are performed. In this paper, we presen...
IAT
2007
IEEE
14 years 2 months ago
2007
IEEE
This paper presents a design of high-speed network traffic acquisition subsystem suitable for agent-based intrusion detection systems. To match the performance requirements and to...
EDBTW
2006
Springer
14 years 1 months ago
2006
Springer
Abstract. Recent research efforts in the fields of data stream processing and data stream management systems (DSMSs) show the increasing importance of processing data streams, e. g...
EDBTW
2006
Springer
14 years 1 months ago
2006
Springer
Several query languages have been proposed for managing data streams in modern monitoring applications. Continuous queries expressed in these languages usually employ windowing con...