to-do.txt

FFT in Sum-Product algorithm
Check LBFGS error codes
Calculate unsmoothed dual
Add more parameters to control things at runtime
Add logging callback to print things in MATLAB
Better smoothing schedule
Adaptively smooth dataterm smoothing
ADMM?
Better passing of data to MATLAB
Other optimization algorithms: Optimal algorithm of Nestorov, also log-updates
Implement convolution in c++ for Mexfile

ADMM where we add augmented lagrangian to the mu_i should work, gets around
quadratic program on simplex because we can project to nearest point on
simplex. Need to make sure math works out for possibly-negative mu_i. 
Work out what MPLP does for this ADMM unary potential. 


For today: 5/16/14
Add unsmoothed dual
Add primal
Use above to get better smoothing/stopping conditions
Add parameters to control all the knobs from command line