Sciweavers

1402 search results - page 271 / 281
» Detecting Change in Data Streams
Sort
View
ICDE
2006
IEEE
134views Database» more  ICDE 2006»
14 years 9 months ago
ISOMER: Consistent Histogram Construction Using Query Feedback
Database columns are often correlated, so that cardinality estimates computed by assuming independence often lead to a poor choice of query plan by the optimizer. Multidimensional...
Utkarsh Srivastava, Peter J. Haas, Volker Markl, M...
ICFP
2006
ACM
14 years 7 months ago
Static typing for a faulty lambda calculus
A transient hardware fault occurs when an energetic particle strikes a transistor, causing it to change state. These faults do not cause permanent damage, but may result in incorr...
David Walker, Lester W. Mackey, Jay Ligatti, Georg...
MOBISYS
2008
ACM
14 years 7 months ago
Composcan: adaptive scanning for efficient concurrent communications and positioning with 802.11
Using 802.11 concurrently for communications and positioning is problematic, especially if location-based services (e.g., indoor navigation) are concurrently executed with real-ti...
Mikkel Baun Kjærgaard, Thomas King
IISWC
2009
IEEE
14 years 2 months ago
Experimental evaluation of N-tier systems: Observation and analysis of multi-bottlenecks
In many areas such as e-commerce, mission-critical N-tier applications have grown increasingly complex. They are characterized by non-stationary workloads (e.g., peak load several...
Simon Malkowski, Markus Hedwig, Calton Pu
DEBS
2008
ACM
13 years 9 months ago
A framework for performance evaluation of complex event processing systems
Several new Complex Event Processing (CEP) engines have been recently released, many of which are intended to be used in performance sensitive scenarios - like fraud detection, tr...
Marcelo R. N. Mendes, Pedro Bizarro, Paulo Marques