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» Propagator: A Family of Patterns
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JCT
2010
117views more  JCT 2010»
13 years 7 months ago
(2+2)-free posets, ascent sequences and pattern avoiding permutations
Abstract. We present bijections between four classes of combinatorial objects. Two of them, the class of unlabeled (2 + 2)-free posets and a certain class of involutions (or chord ...
Mireille Bousquet-Mélou, Anders Claesson, M...
PREMI
2007
Springer
14 years 2 months ago
Rough Set Theory of Pattern Classification in the Brain
Humans effortlessly classify and recognize complex patterns even if their attributes are imprecise and often inconsistent. It is not clear how the brain processes uncertain visual ...
Andrzej W. Przybyszewski
ICDE
2002
IEEE
130views Database» more  ICDE 2002»
14 years 10 months ago
Structural Joins: A Primitive for Efficient XML Query Pattern Matching
XML queries typically specify patterns of selection predicates on multiple elements that have some specified tree structured relationships. The primitive tree structured relations...
Shurug Al-Khalifa, H. V. Jagadish, Jignesh M. Pate...
KDD
2007
ACM
168views Data Mining» more  KDD 2007»
14 years 9 months ago
Finding tribes: identifying close-knit individuals from employment patterns
We present a family of algorithms to uncover tribes--groups of individuals who share unusual sequences of affiliations. While much work inferring community structure describes lar...
Lisa Friedland, David Jensen
VLSID
2002
IEEE
116views VLSI» more  VLSID 2002»
14 years 9 months ago
Prioritized Prime Implicant Patterns Puzzle for Novel Logic Synthesis and Optimization
Compare CMOS Logic with Pass-Transistor Logic, a question was raised in our mind: "Does any rule exist that contains all good?" This paper reveals novel logic synthesis ...
Kuo-Hsing Cheng, Shun-Wen Cheng