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» Periodic Pattern Analysis in Time Series Databases
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VLDB
2007
ACM
179views Database» more  VLDB 2007»
15 years 9 months ago
Mining Approximate Top-K Subspace Anomalies in Multi-Dimensional Time-Series Data
Market analysis is a representative data analysis process with many applications. In such an analysis, critical numerical measures, such as profit and sales, fluctuate over time a...
Xiaolei Li, Jiawei Han
ECRTS
2004
IEEE
15 years 1 months ago
A New Sufficient Feasibility Test for Asynchronous Real-Time Periodic Task Sets
The problem of feasibility analysis for asynchronous periodic task sets (i.e. where tasks can have an initial offset) is known to be co-NP-complete in the strong sense. A sufficie...
Rodolfo Pellizzoni, Giuseppe Lipari
99
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RTCSA
2008
IEEE
15 years 4 months ago
Energy Management for Periodic Real-Time Tasks with Variable Assurance Requirements
Reliability-aware power management (RAPM) schemes, which consider the negative effects of voltage scaling on system reliability, were recently studied to save energy while preserv...
Dakai Zhu, Xuan Qi, Hakan Aydin
KDD
2004
ACM
210views Data Mining» more  KDD 2004»
15 years 10 months ago
Visually mining and monitoring massive time series
Moments before the launch of every space vehicle, engineering discipline specialists must make a critical go/no-go decision. The cost of a false positive, allowing a launch in spi...
Jessica Lin, Eamonn J. Keogh, Stefano Lonardi, Jef...
SSDBM
2005
IEEE
175views Database» more  SSDBM 2005»
15 years 3 months ago
Assumption-Free Anomaly Detection in Time Series
Recent advancements in sensor technology have made it possible to collect enormous amounts of data in real time. However, because of the sheer volume of data most of it will never...
Li Wei, Nitin Kumar, Venkata Nishanth Lolla, Eamon...