activity
20162022
most citedFlexible distribution-free conditional predictive bands using density estimators

24 citations · 67 across the 9 of their papers we have counts for

collaborators

23 papers

stat.ML20222 cited

Model interpretation using improved local regression with variable importance

Gilson Y. Shimizu, Rafael Izbicki, Andre C. P. L. F. de Carvalho

A fundamental question on the use of ML models concerns the explanation of their predictions for increasing transparency in decision-making. Although several interpretability metho…

math.ST2022

Logical coherence in Bayesian simultaneous three-way hypothesis tests

Bernardo F. Reimann, Rafael Izbicki, Julio M. Stern +2

This paper studies whether Bayesian simultaneous three-way hypothesis tests can be logically coherent. Two types of results are obtained. First, under the standard error-wise const…

cs.IR2022

A new LDA formulation with covariates

Gilson Shimizu, Rafael Izbicki, Denis Valle

The Latent Dirichlet Allocation (LDA) model is a popular method for creating mixed-membership clusters. Despite having been originally developed for text analysis, LDA has been use…

stat.ME2021

Diagnostics for Conditional Density Models and Bayesian Inference Algorithms

David Zhao, Niccolò Dalmasso, Rafael Izbicki +1

There has been growing interest in the AI community for precise uncertainty quantification. Conditional density models f(y|x), where x represents potentially high-dimensional featu…

cs.LG20207 cited

MeLIME: Meaningful Local Explanation for Machine Learning Models

Tiago Botari, Frederik Hvilshøj, Rafael Izbicki +1

Most state-of-the-art machine learning algorithms induce black-box models, preventing their application in many sensitive domains. Hence, many methodologies for explaining machine…

stat.ME2020

Confidence Sets and Hypothesis Testing in a Likelihood-Free Inference Setting

Niccolò Dalmasso, Rafael Izbicki, Ann B. Lee

Parameter estimation, statistical tests and confidence sets are the cornerstones of classical statistics that allow scientists to make inferences about the underlying process that…