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TMI
2008
109views more  TMI 2008»
15 years 2 months ago
Motion Compensated Fan-Beam Reconstruction for Nonrigid Transformation
We develop an approximate fan-beam algorithm to reconstruct an object with time-dependent nonrigid transformation such as the heart. The method is in the form of derivative backpro...
Katsuyuki Taguchi, Hiroyuki Kudo
JMLR
2010
169views more  JMLR 2010»
14 years 11 months ago
Focused Belief Propagation for Query-Specific Inference
With the increasing popularity of largescale probabilistic graphical models, even "lightweight" approximate inference methods are becoming infeasible. Fortunately, often...
Anton Chechetka, Carlos Guestrin
GEOINFORMATICA
2002
100views more  GEOINFORMATICA 2002»
15 years 4 months ago
Vagueness and Rough Location
This paper deals with the representation and the processing of information about spatial objects with indeterminate location like valleys or dunes (objects subject to vagueness). ...
Thomas Bittner, John G. Stell
CRYPTO
2009
Springer
105views Cryptology» more  CRYPTO 2009»
15 years 11 months ago
Privacy-Enhancing Auctions Using Rational Cryptography
Abstract. We consider enhancing with privacy concerns a large class of auctions, which include sealed-bid single-item auctions but also general multi-item multi-winner auctions, ou...
Peter Bro Miltersen, Jesper Buus Nielsen, Nikos Tr...
APPROX
2009
Springer
149views Algorithms» more  APPROX 2009»
15 years 11 months ago
On the Complexity of the Asymmetric VPN Problem
We give the first constant factor approximation algorithm for the asymmetric Virtual Private Network (Vpn) problem with arbitrary concave costs. We even show the stronger result, ...
Thomas Rothvoß, Laura Sanità