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SIGMOD
2005
ACM
133views Database» more  SIGMOD 2005»
15 years 11 months ago
Semantics and Evaluation Techniques for Window Aggregates in Data Streams
A windowed query operator breaks a data stream into possibly overlapping subsets of data and computes results over each. Many stream systems can evaluate window aggregate queries....
Jin Li, David Maier, Kristin Tufte, Vassilis Papad...
CIKM
2006
Springer
15 years 1 months ago
Efficiently clustering transactional data with weighted coverage density
In this paper, we propose a fast, memory-efficient, and scalable clustering algorithm for analyzing transactional data. Our approach has three unique features. First, we use the c...
Hua Yan, Keke Chen, Ling Liu
SIGMOD
2008
ACM
131views Database» more  SIGMOD 2008»
15 years 11 months ago
Discovering topical structures of databases
The increasing complexity of enterprise databases and the prevalent lack of documentation incur significant cost in both understanding and integrating the databases. Existing solu...
Wensheng Wu, Berthold Reinwald, Yannis Sismanis, R...
KDD
2007
ACM
178views Data Mining» more  KDD 2007»
16 years 1 days 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
C3S2E
2008
ACM
15 years 1 months ago
Towards a mutation-based automatic framework for evaluating code clone detection tools
In the last decade, a great many code clone detection tools have been proposed. Such a large number of tools calls for a quantitative comparison, and there have been several attem...
Chanchal Kumar Roy, James R. Cordy