def pad_sentece(self, windows_size):
"""
Padding the sentence with nonsence word so that the moving window method can be applied
:param windows_size:
:return:
"""
assert (windows_size+1)%2 == 0, "window size should be an odd number"
padding_num = (windows_size - 1)/2
paddings = [get_padding_word()] * padding_num
properties = [WordProperty()] * padding_num
for property in properties:
property.pos = PosTags.PADDING_POS_TAG
self.__words = paddings + self.__words + paddings
self.__word_properties = properties + self.__word_properties + properties
for srl in self.__srl_structs:
srl.pos_shift(padding_num)
for ne in self.__nes:
ne.pos_shift(padding_num)
for chunk in self.__chunks:
chunk.pos_shift(padding_num)
for phrase in self.__phrases:
phrase.pos_shift(padding_num)
def word_windows(self, windows_size):
assert (windows_size+1)%2 == 0, "window size should be an odd number"
padding_num = (windows_size - 1)/2
paddings = [get_padding_word()] * padding_num
extended_words = paddings + self.__words + paddings
return moving_window(extended_words, windows_size)
