Search Results for author: Giuseppe Di Benedetto

Found 7 papers, 0 papers with code

Fair Effect Attribution in Parallel Online Experiments

no code implementations15 Oct 2022 Alexander Buchholz, Vito Bellini, Giuseppe Di Benedetto, Yannik Stein, Matteo Ruffini, Fabian Moerchen

We suggest an approach to measure and disentangle the effect of simultaneous experiments by providing a cost sharing approach based on Shapley values.

Attribute Causal Inference +1

Ranker-agnostic Contextual Position Bias Estimation

no code implementations28 Jul 2021 Oriol Barbany Mayor, Vito Bellini, Alexander Buchholz, Giuseppe Di Benedetto, Diego Marco Granziol, Matteo Ruffini, Yannik Stein

This paper introduces a method for modeling the probability of an item being seen in different contexts, e. g., for different users, with a single estimator.

Learning-To-Rank Position

A Linear Bandit for Seasonal Environments

no code implementations28 Apr 2020 Giuseppe Di Benedetto, Vito Bellini, Giovanni Zappella

Here we present a contextual bandit algorithm which detects and adapts to abrupt changes of the reward function and leverages previous estimations whenever the environment falls back to a previously observed state.

Music Recommendation Recommendation Systems

Non-exchangeable feature allocation models with sublinear growth of the feature sizes

no code implementations30 Mar 2020 Giuseppe Di Benedetto, François Caron, Yee Whye Teh

In particular, the Indian buffet process is a flexible and simple one-parameter feature allocation model where the number of features grows unboundedly with the number of objects.

Non-exchangeable random partition models for microclustering

no code implementations20 Nov 2017 Giuseppe Di Benedetto, François Caron, Yee Whye Teh

Along with this result, we provide the asymptotic behaviour of the number of clusters of a given size, and show that the model can exhibit a power-law behavior, controlled by another parameter.

Clustering

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