3 papers
stat.ME2025
Isotropic randomization for one-sample testing in metric spaces
Matthieu Bulté, Helle Sørensen
We address the problem of testing hypotheses about a specific value of the Fréchet mean in metric spaces, extending classical mean testing from Euclidean spaces to more general set…
stat.ME2024
An Autoregressive Model for Time Series of Random Objects
Matthieu Bulté, Helle Sørensen
Random variables in metric spaces indexed by time and observed at equally spaced time points are receiving increased attention due to their broad applicability. The absence of inhe…
stat.CO2021
Scalable Econometrics on Big Data -- The Logistic Regression on Spark
Aurélien Ouattara, Matthieu Bulté, Wan-Ju Lin +6
Extra-large datasets are becoming increasingly accessible, and computing tools designed to handle huge amount of data efficiently are democratizing rapidly. However, conventional s…