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SIAMJO
2010
128views more  SIAMJO 2010»
14 years 9 months ago
Solving Log-Determinant Optimization Problems by a Newton-CG Primal Proximal Point Algorithm
We propose a Newton-CG primal proximal point algorithm for solving large scale log-determinant optimization problems. Our algorithm employs the essential ideas of the proximal poi...
Chengjing Wang, Defeng Sun, Kim-Chuan Toh
112
Voted
AAECC
1999
Springer
82views Algorithms» more  AAECC 1999»
15 years 2 months ago
Reasoning over Networks by Symbolic Methods
Effective quantifier elimination procedures for the reals allow to solve problems that can be encoded into corresponding first-order formulas including ordering constraints. In con...
Thomas Sturm
MICCAI
1999
Springer
15 years 6 months ago
Understanding the "Demon's Algorithm": 3D Non-rigid Registration by Gradient Descent
The “Demons Algorithm” in increasingly used for non-rigid registration of 3D medical images. However, if it is fast and usually accurate, the algorithm is based on intuitive id...
Xavier Pennec, Pascal Cachier, Nicholas Ayache
IPPS
1997
IEEE
15 years 5 months ago
A Fast Scalable Universal Matrix Multiplication Algorithm on Distributed-Memory Concurrent Computers
We present a fast and scalable matrix multiplication algorithm on distributed memory concurrent computers, whose performance is independent of data distribution on processors, and...
J. Choi
IPCO
2008
91views Optimization» more  IPCO 2008»
15 years 3 months ago
New Geometry-Inspired Relaxations and Algorithms for the Metric Steiner Tree Problem
Abstract. Determining the integrality gap of the bidirected cut relaxation for the metric Steiner tree problem, and exploiting it algorithmically, is a long-standing open problem. ...
Deeparnab Chakrabarty, Nikhil R. Devanur, Vijay V....