337 search results - page 30 / 68 » Multiple Aggregations Over Data Streams |
HICSS
2011
IEEE
12 years 11 months ago
2011
IEEE
In enterprise data warehouses, different users in different business units often define their own application specific dimension hierarchies tailor made to their reporting and b...
ACL
2007
13 years 9 months ago
2007
We address the task of unsupervised topic segmentation of speech data operating over raw acoustic information. In contrast to existing algorithms for topic segmentation of speech,...
ICDE
2005
IEEE
14 years 9 months ago
2005
IEEE
We consider the problem of maintaining frequency counts for items occurring frequently in the union of multiple distributed data streams. Na?ive methods of combining approximate f...
PODS
2005
ACM
14 years 7 months ago
2005
ACM
In sensor networks, data acquisition frequently takes place at lowcapability devices. The acquired data is then transmitted through a hierarchy of nodes having progressively incre...
ESAS
2007
Springer
13 years 11 months ago
2007
Springer
Secure communication over wireless channels necessitates authentication of communication partners to prevent man-in-the-middle attacks. For spontaneous interaction between independ...