Comments (3)
timoschick
commented on September 3, 2024
1
Hi, the input length is automatically reduced to 512 tokens while leaving the tokens corresponding to labels intact. However, you need to define an appropriate PVP that always includes the maximum number of masks required for any label. Could you share your custom PVP?
Edit: As this was missing from the documentation, I've updated the README file accordingly: https://github.com/timoschick/pet#pet-with-multiple-masks
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timoschick
commented on September 3, 2024
1
Does this mean that i have to multiply self.mask by the number of maximum mask tokens?
Yes, exactly. I don't know how exactly "西大須" gets tokenized, but if it consists of two tokens, you'll have to insert two masks (as you did in your bottom example).
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darwinharianto
commented on September 3, 2024
Thanks for the clarification. This is my PVP class. There is only 1 self.mask when returning get_parts.
class TestPVP(PVP):
VERBALIZER = {
"1": ["他"],
"2": ["西大須"]
}
def get_parts(self, example: InputExample) -> FilledPattern:
text_a = self.shortenable(example.text_a)
text_b = self.shortenable(example.text_b)
if self.pattern_id == 0:
return [self.mask, ':', text_a, text_b], []
elif self.pattern_id == 1:
return [self.mask, '問題は:', text_a, text_b], []
elif self.pattern_id == 2:
return [text_a, '(', self.mask, ')', text_b], []
elif self.pattern_id == 3:
return [text_a, text_b, '(', self.mask, ')'], []
elif self.pattern_id == 4:
return ['[ クラス分類:', self.mask, ']', text_a, text_b], []
elif self.pattern_id == 5:
return [self.mask, '-', text_a, text_b], []
else:
raise ValueError("No pattern implemented for id {}".format(self.pattern_id))
def verbalize(self, label) -> List[str]:
return TestPVP.VERBALIZER[label]
Thanks for the documentation.
respectively, your get_parts() method should always return a sequence that contains exactly 3 mask tokens
Does this mean that i have to multiply self.mask by the number of maximum mask tokens?
class TestPVP(PVP):
VERBALIZER = {
"1": ["他"],
"2": ["西大須"]
}
def get_parts(self, example: InputExample) -> FilledPattern:
text_a = self.shortenable(example.text_a)
text_b = self.shortenable(example.text_b)
if self.pattern_id == 0:
return [self.mask, self.mask, ':', text_a, text_b], []
elif self.pattern_id == 1:
return [self.mask, self.mask, '問題は:', text_a, text_b], []
elif self.pattern_id == 2:
return [text_a, '(', self.mask, self.mask, ')', text_b], []
elif self.pattern_id == 3:
return [text_a, text_b, '(', self.mask, self.mask, ')'], []
elif self.pattern_id == 4:
return ['[ クラス分類:', self.mask, self.mask, ']', text_a, text_b], []
elif self.pattern_id == 5:
return [self.mask, self.mask, '-', text_a, text_b], []
else:
raise ValueError("No pattern implemented for id {}".format(self.pattern_id))
def verbalize(self, label) -> List[str]:
return TestPVP.VERBALIZER[label]
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