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» Consistency in a Stream Warehouse
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SAC
2010
ACM
14 years 3 months ago
Data stream anomaly detection through principal subspace tracking
We consider the problem of anomaly detection in multiple co-evolving data streams. In this paper, we introduce FRAHST (Fast Rank-Adaptive row-Householder Subspace Tracking). It au...
Pedro Henriques dos Santos Teixeira, Ruy Luiz Mili...
SIGMOD
2010
ACM
186views Database» more  SIGMOD 2010»
14 years 3 months ago
Fast approximate correlation for massive time-series data
We consider the problem of computing all-pair correlations in a warehouse containing a large number (e.g., tens of thousands) of time-series (or, signals). The problem arises in a...
Abdullah Mueen, Suman Nath, Jie Liu
CIKM
2008
Springer
14 years 27 days ago
Content-based filtering for efficient online materialized view maintenance
Real-time materialized view maintenance has become increasingly popular, especially in real-time data warehousing and data streaming environments. Upon updates to base relations, ...
Gang Luo, Philip S. Yu
APNOMS
2008
Springer
14 years 28 days ago
A Channel Management Framework to Construct User Preferred Fast Channel Change Stream in IPTV
Abstract. This paper proposes an effective channel management framework which analyzes the user channel surfing behavior and constructs fast channel change stream consisting of use...
Md. Mamun-Or-Rashid, Dae Sun Kim, Choong Seon Hong
SIGMOD
2005
ACM
162views Database» more  SIGMOD 2005»
14 years 11 months ago
Fast and Approximate Stream Mining of Quantiles and Frequencies Using Graphics Processors
We present algorithms for fast quantile and frequency estimation in large data streams using graphics processor units (GPUs). We exploit the high computational power and memory ba...
Naga K. Govindaraju, Nikunj Raghuvanshi, Dinesh Ma...