JeffHuang

There's a bug in running kmp_matcher algorithm at example run.py.

2

we can't add `val_lengths`, since `create_samplers()` alters the `train_lengths`for both kmp_matcher and naive_string_matcher. ```# Create samplers ( train_samplers, val_samplers, val_sample_counts, test_samplers, test_sample_counts, spec_list, ) = create_samplers( rng=rng, train_lengths=train_lengths, algorithms=FLAGS.algorithms, val_lengths=[np.amax(train_lengths)],...