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ICDE
2011
IEEE
263views Database» more  ICDE 2011»
13 years 23 days ago
Adding regular expressions to graph reachability and pattern queries
—It is increasingly common to find graphs in which edges bear different types, indicating a variety of relationships. For such graphs we propose a class of reachability queries ...
Wenfei Fan, Jianzhong Li, Shuai Ma, Nan Tang, Ying...
DAGSTUHL
1993
13 years 10 months ago
Guaranteeing Safe Destructive Updates Through a Type System with Uniqueness Information for Graphs
In this paper we present a type system for graph rewrite systems: uniqueness typing. It employs usage information to deduce whether an object is `unique' at a certain moment,...
Sjaak Smetsers, Erik Barendsen, Marko C. J. D. van...
ISBI
2006
IEEE
14 years 9 months ago
Spatial resolution properties of nonquadratically regularized image reconstruction for PET
This paper examines the spatial resolution properties of nonquadratically regularized image reconstruction methods for positron emission tomography (PET). It is well known that qu...
Sangtae Ahn, Richard M. Leahy
CORR
2010
Springer
188views Education» more  CORR 2010»
13 years 9 months ago
A unified framework for high-dimensional analysis of $M$-estimators with decomposable regularizers
High-dimensional statistical inference deals with models in which the the number of parameters p is comparable to or larger than the sample size n. Since it is usually impossible ...
Sahand Negahban, Pradeep Ravikumar, Martin J. Wain...
PR
2007
88views more  PR 2007»
13 years 8 months ago
Variable structuring element based fuzzy morphological operations for single viewpoint omnidirectional images
Abstract: Morphological tools can provide transformations suitable for real projective images, but the camera and objects to be analyzed have to be positioned in such a manner that...
Olivier Strauss, Frederic Comby