Search Results for author: Martin Bompaire

Found 7 papers, 2 papers with code

Offline Evaluation of Reward-Optimizing Recommender Systems: The Case of Simulation

no code implementations18 Sep 2022 Imad Aouali, Amine Benhalloum, Martin Bompaire, Benjamin Heymann, Olivier Jeunen, David Rohde, Otmane Sakhi, Flavian vasile

Naturally, the reason for this is that we can directly measure utility metrics that rely on interventions, being the recommendations that are being shown to users.

counterfactual Recommendation Systems

Fixed point label attribution for real-time bidding

1 code implementation3 Dec 2020 Martin Bompaire, Antoine Désir, Benjamin Heymann

We dub our approach the Fixed Point Label Attribution (FiPLA) Algorithm.

Computer Science and Game Theory 91B26, 68Q32 I.2.6

Learning from Bandit Feedback: An Overview of the State-of-the-art

no code implementations18 Sep 2019 Olivier Jeunen, Dmytro Mykhaylov, David Rohde, Flavian vasile, Alexandre Gilotte, Martin Bompaire

In order to handle this "bandit-feedback" setting, several Counterfactual Risk Minimisation (CRM) methods have been proposed in recent years, that attempt to estimate the performance of different policies on historical data.

counterfactual Recommendation Systems

Three Methods for Training on Bandit Feedback

no code implementations24 Apr 2019 Dmytro Mykhaylov, David Rohde, Flavian vasile, Martin Bompaire, Olivier Jeunen

There are three quite distinct ways to train a machine learning model on recommender system logs.

Recommendation Systems

Dual optimization for convex constrained objectives without the gradient-Lipschitz assumption

no code implementations10 Jul 2018 Martin Bompaire, Emmanuel Bacry, Stéphane Gaïffas

The minimization of convex objectives coming from linear supervised learning problems, such as penalized generalized linear models, can be formulated as finite sums of convex functions.

Computational Efficiency regression

Tick: a Python library for statistical learning, with a particular emphasis on time-dependent modelling

2 code implementations10 Jul 2017 Emmanuel Bacry, Martin Bompaire, Stéphane Gaïffas, Soren Poulsen

Tick is a statistical learning library for Python~3, with a particular emphasis on time-dependent models, such as point processes, and tools for generalized linear models and survival analysis.

Point Processes Survival Analysis

Sparse and low-rank multivariate Hawkes processes

no code implementations4 Jan 2015 Emmanuel Bacry, Martin Bompaire, Stéphane Gaïffas, Jean-François Muzy

We consider the problem of unveiling the implicit network structure of node interactions (such as user interactions in a social network), based only on high-frequency timestamps.

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