I decided to start from existing conf-file and edited mnist.conf from demos folder, changed strings:
root = .
train = ${root}/ds_data.mat # training data
train_labels = ${root}/ds_labels.mat # training labels
val = ${root}/ds_data.mat # validation data
val_labels = ${root}/ds_labels.mat # validation labels
But train my.conf didn't work.
Error: 2x2x2 and 2x1x1 should have the same number of elements, in idx_sqrdist at /home/cmogilko/eblearn/core/libidx/include/idxops.hpp:1795
I thought that difference is only in number of classes and edited mnist config with other dataset will work. What's wrong?