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A Tractable Probabilistic Model for Subset Selection
Proceedings of the 33rd Conference on Uncertainty in Artificial Intelligence, PMLR R15:51-60, 2017.
Abstract
Subset selection tasks, such as top-k ranking, induce datasets where examples have cardinal- ities that are known a priori. In this paper, we propose a tractable probabilistic model for sub- set selection and show how it can be learned from data. Our proposed model is interpretable and subsumes a previously introduced model based on logistic regression. We show how the parameters of our model can be estimated in closed form given complete data, and propose an algorithm for learning its structure in an in- terpretable space. We highlight the intuitive structures that we learn via case studies. We finally show how our proposed model can be viewed as an instance of the recently proposed Probabilistic Sentential Decision Diagram.