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Fast Combinatorial Algorithm for the Solution of Linearly Constrained Least Squares Problems

Patent ·
OSTI ID:953741

A fast combinatorial algorithm can significantly reduce the computational burden when solving general equality and inequality constrained least squares problems with large numbers of observation vectors. The combinatorial algorithm provides a mathematically rigorous solution and operates at great speed by reorganizing the calculations to take advantage of the combinatorial nature of the problems to be solved. The combinatorial algorithm exploits the structure that exists in large-scale problems in order to minimize the number of arithmetic operations required to obtain a solution.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM
Sponsoring Organization:
United States Department of Energy
DOE Contract Number:
AC04-94AL85000
Assignee:
Sandia Corporation (Albuquerque, NM)
Patent Number(s):
7,451,173
Application Number:
uS patent application 10/938,444
OSTI ID:
953741
Country of Publication:
United States
Language:
English

References (5)

Application of equality constraints on variables during alternating least squares procedures journal January 2002
Simultaneous analysis of several spectroscopic titrations with self-modelling curve resolution journal March 1993
A fast non-negativity-constrained least squares algorithm journal September 1997
Advantages of Soft versus Hard Constraints in Self-Modeling Curve Resolution Problems. Alternating Least Squares with Penalty Functions journal August 2003
Rapid Analysis of Raman Image Data Using Two-Way Multivariate Curve Resolution journal June 1998

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