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lx865712528 avatar lx865712528 commented on July 28, 2024 1

Our method is already sampling without replacement (无放回抽样).
Please refer to https://github.com/microsoft/SimXNS/blob/main/SimANS/utils/MARCO_until_Doc.py#L127-#L148 as an example. Thanks!

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awdrgyjilplij avatar awdrgyjilplij commented on July 28, 2024

Also, s(q, d)=hq·hd can be tens, and many neg_scores=math.exp(-(neg_score - pos_score) ** 2 * self.tau) might be zero in python3

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lx865712528 avatar lx865712528 commented on July 28, 2024

Also, s(q, d)=hq·hd can be tens, and many neg_scores=math.exp(-(neg_score - pos_score) ** 2 * self.tau) might be zero in python3

There are several ways to keep the exp computation more stable. Again in https://github.com/microsoft/SimXNS/blob/main/SimANS/utils/MARCO_until_Doc.py#L127-#L148, we offer self.b as a bias term to keep it stable.

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