# Usage:
1. cd SOLVER_DIR;
2. make;
3. ./train -s LOSS_TYPE -c COST -e EPS DATA_FILE_PATH

where LOSS_TYPE = 0 for LR loss.
                = 2 for L2 loss.
      COST is regularization parameter for linear model.
      EPS is stopping condition (default = 1e-2).
      DATA_FILE_PATH is the file path to your data.
        your data should be in the LIBSVM format.

All data could be found from
https://www.csie.ntu.edu.tw/~cjlin/libsvmtools/datasets/binary.html

Enjoy.
