can we interface to the python oracles as pystruct does?

[martinjaggi]

this already has some nice decoding oracles, see inference section in
pystruct.github.io/references.html

including linear programming (LP) relaxation (related to #2 as this is not exact), as well as belief propagation (BP)

@alucchi could you advise @tribhuvanesh which ones would be most useful for us currently?

[martinjaggi]

copy from the email thread:

• link to the list of oracles available in pystruct:
  https://pystruct.github.io/references.html#inference
• by Aurelien: An alternative might be Factorie: https://people.cs.umass.edu/~mccallum/code.html. They have an implementation of Belief Propagation:
  https://github.com/factorie/factorie/blob/master/src/main/scala/cc/factorie/infer/BP.scala
  nice library + scala code!