785 search results - page 34 / 157 » An Algebra of Hierarchical Graphs |
CIE
2006
Springer
14 years 1 months ago
2006
Springer
Abstract. Graph isomorphism (GI) is one of the few remaining problems in NP whose complexity status couldn't be solved by classifying it as being either NP-complete or solvabl...
BTW
2007
Springer
14 years 4 months ago
2007
Springer
: Distributed top-k query processing is increasingly becoming an essential functionality in a large number of emerging application classes. This paper addresses the efficient alge...
ASUNAM
2009
IEEE
14 years 3 months ago
2009
IEEE
Community detection in social networks varying with time is a common yet challenging problem whereby efficient visualization of evolving relationships and implicit hierarchical s...
ICDE
2006
IEEE
14 years 11 months ago
2006
IEEE
Graphs have become popular for modeling structured data. As a result, graph queries are becoming common and graph indexing has come to play an essential role in query processing. ...
TCOM
2008
13 years 8 months ago
2008
In this paper, a method to design regular (2, dc)-LDPC codes over GF(q) with both good waterfall and error floor properties is presented, based on the algebraic properties of thei...