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» Structure in the Space of Value Functions
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SIAMSC
2008
179views more  SIAMSC 2008»
15 years 6 months ago
Multigrid Algorithms for Inverse Problems with Linear Parabolic PDE Constraints
Abstract. We present a multigrid algorithm for the solution of distributed parameter inverse problems constrained by variable-coefficient linear parabolic partial differential equa...
Santi S. Adavani, George Biros
MFCS
2009
Springer
16 years 1 months ago
Branching Programs for Tree Evaluation
We introduce the tree evaluation problem, show that it is in LogDCFL (and hence in P), and study its branching program complexity in the hope of eventually proving a superlogarith...
Mark Braverman, Stephen A. Cook, Pierre McKenzie, ...
CRYPTO
2001
Springer
152views Cryptology» more  CRYPTO 2001»
15 years 11 months ago
Secure Distributed Linear Algebra in a Constant Number of Rounds
Consider a network of processors among which elements in a finite field K can be verifiably shared in a constant number of rounds. Assume furthermore constant-round protocols ar...
Ronald Cramer, Ivan Damgård
IJCAI
2003
15 years 7 months ago
Expressive Power of Tree and String Based Wrappers
There exist two types of wrappers: the string based wrapper such as the LR wrapper, and the tree based wrapper. A tree based wrapper designates extraction regions by nodes on the ...
Daisuke Ikeda, Yasuhiro Yamada, Sachio Hirokawa
CVPR
2004
IEEE
16 years 8 months ago
Inference of Multiple Subspaces from High-Dimensional Data and Application to Multibody Grouping
Multibody grouping is a representative of applying subspace constraints in computer vision tasks. Under linear projection models, feature points of multibody reside in multiple su...
Zhimin Fan, Jie Zhou, Ying Wu