Sciweavers

1552 search results - page 70 / 311
» Efficient Aggregate Computation over Data Streams
Sort
View
KDD
2007
ACM
178views Data Mining» more  KDD 2007»
14 years 10 months ago
Density-based clustering for real-time stream data
Existing data-stream clustering algorithms such as CluStream are based on k-means. These clustering algorithms are incompetent to find clusters of arbitrary shapes and cannot hand...
Yixin Chen, Li Tu
PODS
2008
ACM
170views Database» more  PODS 2008»
14 years 10 months ago
Answering aggregate queries in data exchange
Data exchange, also known as data translation, has been extensively investigated in recent years. One main direction of research has focused on the semantics and the complexity of...
Foto N. Afrati, Phokion G. Kolaitis
ACISP
2007
Springer
14 years 2 months ago
Combining Prediction Hashing and MDS Codes for Efficient Multicast Stream Authentication
We study the multicast stream authentication problem when the communication channel is under control of an opponent who can drop, reorder and inject data packets. In this work, we...
Christophe Tartary, Huaxiong Wang
SIGMOD
2010
ACM
173views Database» more  SIGMOD 2010»
14 years 2 months ago
PR-join: a non-blocking join achieving higher early result rate with statistical guarantees
Online aggregation is a promising solution to achieving fast early responses for interactive ad-hoc queries that compute aggregates on a large amount of data. Essential to the suc...
Shimin Chen, Phillip B. Gibbons, Suman Nath
ISORC
2006
IEEE
14 years 4 months ago
RTSTREAM: Real-Time Query Processing for Data Streams
Many real-time applications, such as traffic control systems, surveillance systems and health monitoring systems, need to operate on continuous unbounded streams of data. These ap...
Yuan Wei, Sang Hyuk Son, John A. Stankovic