Lamarr at LeQua2024: Regularized Soft-Max Likelihood Maximization

As members of the Lamarr Institute, we participated in the

open LeQua2024 competition. The goal in this competition was to pre-

dict the prevalences of classes in unlabeled sets of data, given a labeled

training set. Our submission builds on the regularized maximization of a

likelihood function with constraints that are implemented through a soft-

max operator. Ultimately, this method ranked in the top three across all

four disciplines of LeQua2024; most notably, we achieved the first place

in discipline T4, a binary quantification task with covariate shift. In this

paper, we detail our approach to the competition.

Citation information

Lotz, Tobias; Bunse, Mirko: Lamarr at LeQua2024: Regularized Soft-Max Likelihood Maximization, 4th International Workshop on Learning to Quantify (LQ 2024), 2024, 93, https://hal.science/hal-04942724v1/file/LQ2024Proc.pdf#page=100, Lotz.Bunse.2024a,