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aravindpai/bpe_5.py

Created May 22, 2020 16:13
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bpe_5.py
#merges the most frequent pair in the corpus
#accepts the corpus and best pair
#returns the modified corpus
import re
def merge_vocab(pair, corpus_in):
corpus_out = {}
bigram = re.escape(' '.join(pair))
p = re.compile(r'(?<!\S)' + bigram + r'(?!\S)')
for word in corpus_in:
w_out = p.sub(''.join(pair), word)
corpus_out[w_out] = corpus_in[word]
return corpus_out
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