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» Memory-constrained aggregate computation over data streams
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PODS
2003
ACM
104views Database» more  PODS 2003»
14 years 6 months ago
Maintaining time-decaying stream aggregates
We formalize the problem of maintaining time-decaying aggregates and statistics of a data stream: the relative contribution of each data item to the aggregate is scaled down by a ...
Edith Cohen, Martin Strauss
ICDCS
2002
IEEE
13 years 11 months ago
Impact of Network Density on Data Aggregation in Wireless Sensor Networks
In-network data aggregation is essential for wireless sensor networks where energy resources are limited. In a previously proposed data dissemination scheme (directed diffusion wi...
Chalermek Intanagonwiwat, Deborah Estrin, Ramesh G...
SDM
2007
SIAM
187views Data Mining» more  SDM 2007»
13 years 8 months ago
Topic Models over Text Streams: A Study of Batch and Online Unsupervised Learning
Topic modeling techniques have widespread use in text data mining applications. Some applications use batch models, which perform clustering on the document collection in aggregat...
Arindam Banerjee, Sugato Basu
ICDE
2008
IEEE
139views Database» more  ICDE 2008»
14 years 8 months ago
Simultaneous Equation Systems for Query Processing on Continuous-Time Data Streams
We introduce Pulse, a framework for processing continuous queries over models of continuous-time data, which can compactly and accurately represent many real-world activities and p...
Jennie Rogers, Olga Papaemmanouil, Ugur Çet...
ICDE
2010
IEEE
288views Database» more  ICDE 2010»
14 years 6 months ago
Global Iceberg Detection over Distributed Data Streams
In today's Internet applications or sensor networks we often encounter large amounts of data spread over many physically distributed nodes. The sheer volume of the data and ba...
Ashwin Lall, Haiquan (Chuck) Zhao, Jun Xu, Mitsuno...