Sequential Forward Floating Selection (SFFS)

Hi!

I would like to use SFFS in MATLAB but was not able to find a good implementation of that algorithm yet for MATLAB.

The only thing I could find was: http://www.mathworks.com/matlabcentral/fileexchange/22970-feature-selection-using-matlab

But this only seems to be a Demo, and comments don't sound very trustworthy.

In the above links these following links were mentioned: http://www.prtools.org http://cmp.felk.cvut.cz/cmp/software/stprtool http://fst.utia.cz/?relres

But nowhere I could find SFFS.

Please, if anybody knows a trustworthy implementation let me know. I would also consider writing my own when I find a proper description and pseudocode ;-)

Have a nice weekend, Jay

Answer 1

[Guillermo]

I found an implementation at this site:

http://www.elsevierdirect.com/companion.jsp?ISBN=9780123744869

appears with an example (example 4.8.3) of the book Introduction to Pattern Recognition by Theodoridis.

Im seeking for a good explication of the SFFS, is for a university workshop, if you know a good one please let me know

Answer 2

[Guillermo]

The implementation at http://www.elsevierdirect.com/companion.jsp?ISBN=9780123744869 has an error.

Can be resolved by removing the instruction 'X_hat{k}=setdiff(X{k+1},xr)' from the stepIII. The new location can be the final of the step II

[RenHong Lai]

Will you be able to provide detailed code?