How do I mimic the results of a basic CRF++ model in CRFSuite?
I have been using CRF++ for some time and the results have been very promising, however I have recently switched to CRFSuite with Python implementation to get the model into production. That said, I have been unable to replicate to results I've obtained with CRF++ in CRFSuite using simple parameters.
The model I have created is as simple as possible with only one feature (current word):
**CRF++ Model:**
#Unigrams
U00:%x[0,0]
#Bigrams
#B
**CRFSuite Model**
def word2features(sent, i):
word = sent[i][0]
features = [
'word=' + word,
]
return features
The CRFSuite model is based off of this example - https://github.com/scrapinghub/python-crfsuite/blob/master/examples/CoNLL%202002.ipynb
I am using the default parameters for CRF++, but even modifying the parameters for CRFSuite to match those has been unable to get the same results.
The parameters I am using for CRFSuite are (from the manual):
algorithm = lbfgs
c1 = 0
c2 = 1
Which is supposedly the same as the default parameters in CRF++ (I'd post the manual but dont have enough rep - searched for CRF++ documentation).
Am I missing something? Thanks!