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CDC
2008
IEEE
120views Control Systems» more  CDC 2008»
15 years 10 months ago
On time-scale designs for networks
—We motivate the problem of designing a subset of the edge weights in a graph, to shape the spectrum of an associated linear time-invariant dynamics. We address a canonical desig...
Sandip Roy, Yan Wan, Ali Saberi
AAECC
2007
Springer
118views Algorithms» more  AAECC 2007»
15 years 10 months ago
The "Art of Trellis Decoding" Is NP-Hard
Given a linear code C, the fundamental problem of trellis decoding is to find a coordinate permutation of C that yields a code C′ whose minimal trellis has the least state-compl...
Navin Kashyap
ICALP
2001
Springer
15 years 8 months ago
Minimal Tail-Biting Trellises for Certain Cyclic Block Codes Are Easy to Construct
We give simple algorithms for the construction of generator matrices for minimal tail-biting trellises for a powerful and practical subclass of the linear cyclic codes, from which ...
Priti Shankar, P. N. A. Kumar, Harmeet Singh, B. S...
UAI
2008
15 years 5 months ago
Discovering Cyclic Causal Models by Independent Components Analysis
We generalize Shimizu et al's (2006) ICA-based approach for discovering linear non-Gaussian acyclic (LiNGAM) Structural Equation Models (SEMs) from causally sufficient, conti...
Gustavo Lacerda, Peter Spirtes, Joseph Ramsey, Pat...
ORL
2008
91views more  ORL 2008»
15 years 4 months ago
On the integrality ratio for tree augmentation
We show that the standard linear programming relaxation for the tree augmentation problem in undirected graphs has an integrality ratio that approaches 3 2 . This refutes a conjec...
Joseph Cheriyan, Howard J. Karloff, Rohit Khandeka...