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|
| Turning conditional probabilities |
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| into pairwise probabilities |
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|
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|
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| To get a symmetric affinity between i
and j we sum the |
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| two conditional
probabilities and divide by the number of |
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| points (points
are not allowed to choose themselves). |
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| This ensures that all the pairwise
affinities sum to 1 so |
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| they can be treated as
probabilities. |
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