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JMLR
2008
141views more  JMLR 2008»
15 years 1 months ago
Graphical Methods for Efficient Likelihood Inference in Gaussian Covariance Models
In graphical modelling, a bi-directed graph encodes marginal independences among random variables that are identified with the vertices of the graph. We show how to transform a bi...
Mathias Drton, Thomas S. Richardson
TAGT
1998
Springer
243views Graph Theory» more  TAGT 1998»
15 years 5 months ago
Double-Pullback Graph Transitions: A Rule-Based Framework with Incomplete Information
Reactive systems perform their tasks through interaction with their users or with other systems (as parts of a bigger system). An essential requirement for modeling such systems is...
Hartmut Ehrig, Reiko Heckel, Mercè Llabr&ea...
MVA
2008
15 years 1 months ago
Retrieving articulated 3-D models using medial surfaces
Abstract We consider the use of medial surfaces to represent symmetries of 3-D objects. This allows for a qualitative abstraction based on a directed acyclic graph of components an...
Kaleem Siddiqi, Juan Zhang, Diego Macrini, Ali Sho...
CAV
2008
Springer
110views Hardware» more  CAV 2008»
15 years 3 months ago
Monotonic Abstraction for Programs with Dynamic Memory Heaps
c Abstraction for Programs with Dynamic Memory Heaps Parosh Aziz Abdulla1 , Ahmed Bouajjani2 , Jonathan Cederberg1 , Fr
Parosh Aziz Abdulla, Ahmed Bouajjani, Jonathan Ced...
ICIP
2010
IEEE
14 years 11 months ago
Local two-channel critically sampled filter-banks on graphs
In this paper, we propose two-channel filter-bank designs for signals defined on arbitrary graphs. These filter-banks are local, invertible and critically sampled. Depending on th...
Sunil K. Narang, Antonio Ortega