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ICALP
2010
Springer
15 years 10 months ago
Testing 2-Vertex Connectivity and Computing Pairs of Vertex-Disjoint s-t Paths in Digraphs
We present an O(m + n)-time algorithm that tests if a given directed graph is 2-vertex connected, where m is the number of arcs and n is the number of vertices. Based on this resul...
Loukas Georgiadis
CN
1999
56views more  CN 1999»
15 years 6 months ago
Surfing the Web Backwards
From a user's perspective, hypertext links on the web form a directed graph between distinct information sources. We investigate the effects of discovering "backlinks&qu...
Soumen Chakrabarti, David Gibson, Kevin S. McCurle...
IPMU
2010
Springer
15 years 4 months ago
Possibilistic Graphical Models and Compositional Models
We overview three kinds of possibilistic graphical models (based on directed acyclic graphs) and present, how they can be expressed by means of non-graphical approach to multidimen...
Jirina Vejnarová
JMLR
2010
143views more  JMLR 2010»
15 years 1 months ago
Beware of the DAG!
Directed acyclic graph (DAG) models are popular tools for describing causal relationships and for guiding attempts to learn them from data. In particular, they appear to supply a ...
A. Philip Dawid
ESA
2011
Springer
231views Algorithms» more  ESA 2011»
14 years 6 months ago
Distribution-Aware Compressed Full-Text Indexes
Abstract. In this paper we address the problem of building a compressed self-index that, given a distribution for the pattern queries and a bound on the space occupancy, minimizes ...
Paolo Ferragina, Jouni Sirén, Rossano Ventu...