About Site Map Submit Contact Us Log in | Create an account
Create an account Log In
Average Rating
User Rating:
Visitors Rating:
My rating:

Write review
  • License: Freeware
  • Last update: 6 years ago
  • Total downloads: 170
  • Price: Free |
  • Operating system: Linux, Mac OS X, Win All, BSD, Solaris
  • Publisher: Dirk-Jan Kroon (54 other programs)
See full specifications

scripts default iconFMINLBFGS: Fast Limited Memory Optimizer (Scripts) Publisher's description

FMINLBFGS is a Memory efficient optimizer for problems such as image registration with large amounts of unknowns

FMINLBFGS is a Memory efficient optimizer for problems such as image registration with large amounts of unknowns, and cpu-expensive gradients.

- Quasi Newton Broyden–Fletcher–Goldfarb–Shanno (BFGS).
- Limited memory BFGS (L-BFGS).
- Steepest Gradient Descent optimization.

- Quasi-Newton thus no need to provide a hessian, instead the hessian is updated by analyzing successive gradient vectors instead.
- L-BFGS never explicitly forms or stores the Hessian matrix, which can be quite expensive when the number of dimensions becomes large.
- There is an input option to replace gradient calls during linesearch with normal function calls, if the gradient is cpu-expensive.

This function uses the same interface and options as Matlab functions such as fminunc and fminsearch. But optimset can be replaced by a simple struct when optimization toolbox not available.

options = optimset('GradObj', 'on' ,'Display', 'iter', 'HessUpdate', 'bfgs', 'GoalsExactAchieve',1);
[x,fval] = fminlbfgs(@myfun, [1 1 1 1 1], options);

System Requirements:

MATLAB 7.7 (R2008b)
Program Release Status: Major Update
Program Install Support: Install and Uninstall

Is FMINLBFGS: Fast Limited Memory Optimizer (Scripts) your software?

Manage your software

Most Popular

scripts default icon ASK, OOK, FSK, BPSK, QPSK, 8PSK modulation 1.1
ASK, OOK, FSK, BPSK, QPSK, 8PSK modulation contain several functions for digital modulation simulation
scripts default icon Simulink Communication Labs 1.1
Simulink Communication Labs allows you to learn communication systems in greater depth.
scripts default icon M-QAM modulation and demodulation 1.1
M-QAM modulation and demodulation is the QAM modulation and demodulation tech.
scripts default icon LZW Compression/Decompression 1.1
LZW Compression/Decompression - Updated LZW compressor and decompressor with reasonable performance
scripts default icon InSPIRE utility to plot a 2D displacement field (Scripts) 1.0
This program plots the deformation field (displace vectors) contained in vector.txt.