--tested on Ubuntu 16.04
- C++ compiler (gcc 3.0 or higher)
- System requirements - preferably Linux
Installation - download the zip file from the official documentation website https://taku910.github.io/crfpp/
- Training set - all rows of the training set must contain same number of columns, specifically --word tab POS tag
- Testing set - same as training set
- Template - defines the set of features to be used while training the tagger
crf_learn template train.txt model
crf_test model test.txt