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IANDC
2011
129views more  IANDC 2011»
13 years 1 months ago
Rigid tree automata and applications
We introduce the class of Rigid Tree Automata (RTA), an extension of standard bottom-up automata on ranked trees with distinguished states called rigid. Rigid states define a res...
Florent Jacquemard, Francis Klay, Camille Vacher
KDD
2007
ACM
165views Data Mining» more  KDD 2007»
14 years 6 months ago
Finding low-entropy sets and trees from binary data
The discovery of subsets with special properties from binary data has been one of the key themes in pattern discovery. Pattern classes such as frequent itemsets stress the co-occu...
Eino Hinkkanen, Hannes Heikinheimo, Heikki Mannila...
DEXAW
2008
IEEE
120views Database» more  DEXAW 2008»
14 years 18 days ago
Self-Similarity Metric for Index Pruning in Conceptual Vector Space Models
— One of the critical issues in search engines is the size of search indexes: as the number of documents handled by an engine increases, the search must preserve its efficiency,...
Dario Bonino, Fulvio Corno
PAKDD
1999
ACM
124views Data Mining» more  PAKDD 1999»
13 years 10 months ago
Discovery of Equations and the Shared Operational Semantics in Distributed Autonomous Databases
Empirical equations are an important class of regularities that can be discovered in databases. In this paper we concentrate on the role of equations as de nitions of attribute val...
Zbigniew W. Ras, Jan M. Zytkow
ISPD
2003
ACM
121views Hardware» more  ISPD 2003»
13 years 11 months ago
Optimality, scalability and stability study of partitioning and placement algorithms
This paper studies the optimality, scalability and stability of stateof-the-art partitioning and placement algorithms. We present algorithms to construct two classes of benchmarks...
Jason Cong, Michail Romesis, Min Xie