578 search results - page 36 / 116 » The Importance of Aggregation |
VLDB
2011
ACM
13 years 2 months ago
2011
ACM
Schema mappings are high-level specifications that describe the relationship between two database schemas. They are an important tool in several areas of database research, notab...
SIGMOD
2004
ACM
14 years 7 months ago
2004
ACM
Data items archived in data warehouses or those that arrive online as streams typically have attributes which take values from multiple hierarchies (e.g., time and geographic loca...
INFOCOM
2006
IEEE
14 years 1 months ago
2006
IEEE
— A key function for network traffic monitoring and analysis is the ability to perform aggregate queries over multiple data streams. Change detection is an important primitive w...
Publication
In performance analysis and design of communication netword modeling data traffic is important. With introduction of new applications, the characteristics of the data traffic chang...
VLDB
2007
ACM
14 years 1 months ago
2007
ACM
For a large number of data management problems, it would be very useful to be able to obtain a few samples from a data set, and to use the samples to guess the largest (or smalles...