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» Group-theoretic Algorithms for Matrix Multiplication
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TOMS
2008
120views more  TOMS 2008»
13 years 8 months ago
Families of algorithms related to the inversion of a Symmetric Positive Definite matrix
We present families of algorithms for operations related to the computation of the inverse of a Symmetric Positive Definite (SPD) matrix: Cholesky factorization, inversion of a tr...
Paolo Bientinesi, Brian C. Gunter, Robert A. van d...
STOC
1998
ACM
111views Algorithms» more  STOC 1998»
14 years 21 days ago
A Deterministic Strongly Polynomial Algorithm for Matrix Scaling and Approximate Permanents
We present a deterministic strongly polynomial algorithm that computes the permanent of a nonnegative n × n matrix to within a multiplicative factor of en. To this end we develop...
Nathan Linial, Alex Samorodnitsky, Avi Wigderson
TSP
2010
13 years 3 months ago
Power allocation for a MIMO relay system with multiple-antenna users
A power allocation or scheduling problem is studied for a multiuser multiple-input multiple-output (MIMO) wireless relay system where there is a non-regenerative relay between one ...
Yuan Yu, Yingbo Hua
ICASSP
2011
IEEE
13 years 5 days ago
Improved speaker recognition when using i-vectors from multiple speech sources
The concept of speaker recognition using i-vectors was recently introduced offering state-of-the-art performance. An i-vector is a compact representation of a speaker’s utteranc...
Mitchell McLaren, David A. van Leeuwen
ICS
2007
Tsinghua U.
14 years 2 months ago
Representation-transparent matrix algorithms with scalable performance
Positive results from new object-oriented tools for scientific programming are reported. Using template classes, abstractions of matrix representations are available that subsume...
Peter Gottschling, David S. Wise, Michael D. Adams