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OSDI
2008
ACM
16 years 7 months ago
Lightweight, High-Resolution Monitoring for Troubleshooting Production Systems
Production systems are commonly plagued by intermittent problems that are difficult to diagnose. This paper describes a new diagnostic tool, called Chopstix, that continuously col...
Sapan Bhatia, Abhishek Kumar, Marc E. Fiuczynski, ...
VLDB
2004
ACM
119views Database» more  VLDB 2004»
16 years 7 months ago
Evaluating holistic aggregators efficiently for very large datasets
Indatawarehousingapplications,numerousOLAP queries involve the processing of holistic aggregators such as computing the "top n," median, quantiles, etc. In this paper, we...
Lixin Fu, Sanguthevar Rajasekaran
VLDB
2005
ACM
153views Database» more  VLDB 2005»
16 years 7 months ago
An effective and efficient algorithm for high-dimensional outlier detection
Abstract. The outlier detection problem has important applications in the field of fraud detection, network robustness analysis, and intrusion detection. Most such applications are...
Charu C. Aggarwal, Philip S. Yu
VLDB
2006
ACM
190views Database» more  VLDB 2006»
16 years 7 months ago
Online summarization of dynamic time series data
Managing large-scale time series databases has attracted significant attention in the database community recently. Related fundamental problems such as dimensionality reduction, tr...
Ümit Y. Ogras, Hakan Ferhatosmanoglu
VLDB
2007
ACM
161views Database» more  VLDB 2007»
16 years 7 months ago
Proof-Infused Streams: Enabling Authentication of Sliding Window Queries On Streams
As computer systems are essential components of many critical commercial services, the need for secure online transactions is now becoming evident. The demand for such application...
Feifei Li, Ke Yi, Marios Hadjieleftheriou, George ...