Search Results for author: Alessio Mazzetto

Found 4 papers, 1 papers with code

An Improved Algorithm for Learning Drifting Discrete Distributions

no code implementations8 Mar 2024 Alessio Mazzetto

To use more samples, we must resort to samples further in the past, and we incur a drift error due to the bias introduced by the change in distribution.

An Adaptive Method for Weak Supervision with Drifting Data

no code implementations2 Jun 2023 Alessio Mazzetto, Reza Esfandiarpoor, Eli Upfal, Stephen H. Bach

In particular, at each step, our algorithm guarantees an estimation of the current accuracies of the weak supervision sources over a window of past observations that minimizes a trade-off between the error due to the variance of the estimation and the error due to the drift.

Nonparametric Density Estimation under Distribution Drift

no code implementations5 Feb 2023 Alessio Mazzetto, Eli Upfal

We study nonparametric density estimation in non-stationary drift settings.

Density Estimation

Tight Lower Bounds on Worst-Case Guarantees for Zero-Shot Learning with Attributes

1 code implementation25 May 2022 Alessio Mazzetto, Cristina Menghini, Andrew Yuan, Eli Upfal, Stephen H. Bach

We develop the first non-trivial lower bound on the worst-case error of the best map from attributes to classes for this setting, even with perfect attribute detectors.

Attribute Zero-Shot Learning

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