Density Ratio Estimation
A method for estimating the density ratio between two probability distributions, where the density ratio describes the multiplicative relationship between the probability densities of a target distribution and a base distribution, used to quantify distribution shift.
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That study proposes a new method for density ratio estimation based on ranked score vectors.
This research proposes a unified estimation framework that parameterizes the density ratio with a displacement field acting on a base distribution, so that density ratio estimation and displacement field estimation are obtained simultaneously through the same convex optimization problem.
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This research proposes a unified estimation framework that parameterizes the density ratio with a displacement field acting on a base distribution, so that density ratio estimation and displacement field estimation are obtained simultaneously through the same convex optimization problem.
50%UnverifiedThat study proposes a new method for density ratio estimation based on ranked score vectors.
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