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» In Praise of Numerical Computation
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TOMS
2008
80views more  TOMS 2008»
15 years 6 months ago
Updating an LU Factorization with Pivoting
We show how to compute an LU factorization of a matrix when the factors of a leading principle submatrix are already known. The approach incorporates pivoting akin to partial pivo...
Enrique S. Quintana-Ortí, Robert A. van de ...
SIAMJO
2008
81views more  SIAMJO 2008»
15 years 5 months ago
A First-Order Convergence Analysis of Trust-Region Methods with Inexact Jacobians
A class of trust-region algorithms is developed and analyzed for the solution of minimization problems with nonlinear inequality constraints. Based on composite-step trust region ...
Andrea Walther
DATESO
2010
369views Database» more  DATESO 2010»
15 years 4 months ago
Database Trends and Directions: Current Challenges and Opportunities
Database management has undergone more than four decades of evolution producing vast range of research and extensive array of technology solutions. The database research community ...
George Feuerlicht
IMCSIT
2010
15 years 4 months ago
Building and Using Existing Hunspell Dictionaries and TeX Hyphenators as Finite-State Automata
Abstract--There are numerous formats for writing spellcheckers for open-source systems and there are many descriptions for languages written in these formats. Similarly, for word h...
Tommi Pirinen, Krister Lindén
JCPHY
2011
109views more  JCPHY 2011»
14 years 9 months ago
Fast construction of hierarchical matrix representation from matrix-vector multiplication
We develop a hierarchical matrix construction algorithm using matrixvector multiplications, based on the randomized singular value decomposition of low-rank matrices. The algorith...
Lin Lin, Jianfeng Lu, Lexing Ying