write serialized models with libsvm-tk instead of svmlight format

For some advanced types of tree kernels (first and foremost a configuration 
where each tree feature is paired with an appropriate kernel) the svmlight-tk 
binary and data/model format is not general enough to handle. So the goal of 
this issue is to branch libsvm-tk away from the svmlight-tk models and have it 
write its own data format and serialized models in a maximally general way. 
This will break the previous version formatting but given the novelty of this 
component it is unlikely that anyone has used this module for any serious work.

The ml-tksvmlight module will continue to target svmlight-tk.

Original issue reported on code.google.com by tim.mil...@gmail.com on 12 Jul 2014 at 11:05

mkabbasi / cleartk

write serialized models with libsvm-tk instead of svmlight format #406