phrasemachine.py 文件源码

def coarse_tag_str(pos_seq):
    """Convert POS sequence to our coarse system, formatted as a string."""
    global tag2coarse
    tags = [tag2coarse.get(tag,'O') for tag in pos_seq]
    return ''.join(tags)

# POS extraction assuming list of POS tags as input.
# >>> pyre.extract_finditer(["VB","JJ","NN","NN","QQ","QQ",])
# [(1, 4)]
# >>> pyre.extract_ngram_filter(["VB","JJ","NN","NN","QQ","QQ",])
# [(1, 3), (1, 4), (2, 3), (2, 4), (3, 4)]