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ISCI
2006
145views more  ISCI 2006»
13 years 11 months ago
Processing count queries over event streams at multiple time granularities
Management and analysis of streaming data has become crucial with its applications in web, sensor data, network traffic data, and stock market. Data streams consist of mostly nume...
Aykut Ünal, Yücel Saygin, Özgü...
LATIN
2004
Springer
14 years 4 months ago
An Improved Data Stream Summary: The Count-Min Sketch and Its Applications
We introduce a new sublinear space data structure—the Count-Min Sketch— for summarizing data streams. Our sketch allows fundamental queries in data stream summarization such a...
Graham Cormode, S. Muthukrishnan
STOC
2002
ACM
109views Algorithms» more  STOC 2002»
14 years 11 months ago
Approximate counting of inversions in a data stream
Miklós Ajtai, T. S. Jayram, Ravi Kumar, D. ...
COMPGEOM
2004
ACM
14 years 4 months ago
Range counting over multidimensional data streams
We consider the problem of approximate range counting over streams of d-dimensional points. In the data stream model, the algorithm makes a single scan of the data, which is prese...
Subhash Suri, Csaba D. Tóth, Yunhong Zhou
VLDB
2002
ACM
106views Database» more  VLDB 2002»
13 years 10 months ago
Approximate Frequency Counts over Data Streams
We present algorithms for computing frequency counts exceeding a user-specified threshold over data streams. Our algorithms are simple and have provably small memory footprints. A...
Gurmeet Singh Manku, Rajeev Motwani