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» Dependability in Aggregation by Averaging
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NOMS
2010
IEEE
251views Communications» more  NOMS 2010»
14 years 8 months ago
Online detection of utility cloud anomalies using metric distributions
—The online detection of anomalies is a vital element of operations in data centers and in utility clouds like Amazon EC2. Given ever-increasing data center sizes coupled with th...
Chengwei Wang, Vanish Talwar, Karsten Schwan, Part...
SIGMOD
2004
ACM
144views Database» more  SIGMOD 2004»
15 years 10 months ago
Diamond in the Rough: Finding Hierarchical Heavy Hitters in Multi-Dimensional Data
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...
Graham Cormode, Flip Korn, S. Muthukrishnan, Dives...
112
Voted
IPSN
2004
Springer
15 years 3 months ago
The impact of spatial correlation on routing with compression in wireless sensor networks
The efficacy of data aggregation in sensor networks is a function of the degree of spatial correlation in the sensed phenomenon. While several data aggregation (i.e., routing with...
Sundeep Pattem, Bhaskar Krishnamachari, Ramesh Gov...
SIGMOD
1997
ACM
131views Database» more  SIGMOD 1997»
15 years 2 months ago
Maintenance of Data Cubes and Summary Tables in a Warehouse
Data warehouses contain large amounts of information, often collected from a variety of independent sources. Decision-support functions in a warehouse, such as on-line analytical ...
Inderpal Singh Mumick, Dallan Quass, Barinderpal S...
ICMCS
2007
IEEE
155views Multimedia» more  ICMCS 2007»
15 years 4 months ago
Hidden Maximum Entropy Approach for Visual Concept Modeling
Recently, the bag-of-words approach has been successfully applied to automatic image annotation, object recognition, etc. The method needs to first quantize an image using the vis...
Sheng Gao, Joo-Hwee Lim, Qibin Sun