Search Results for author: Mounia Lalmas

Found 8 papers, 3 papers with code

Towards Graph Foundation Models for Personalization

no code implementations12 Mar 2024 Andreas Damianou, Francesco Fabbri, Paul Gigioli, Marco De Nadai, Alice Wang, Enrico Palumbo, Mounia Lalmas

In the realm of personalization, integrating diverse information sources such as consumption signals and content-based representations is becoming increasingly critical to build state-of-the-art solutions.

Language Modelling Large Language Model +1

Generalized User Representations for Transfer Learning

no code implementations1 Mar 2024 Ghazal Fazelnia, Sanket Gupta, Claire Keum, Mark Koh, Ian Anderson, Mounia Lalmas

In the second stage, downstream task-specific models leverage user representations via transfer learning instead of curating user features individually.

Recommendation Systems Representation Learning +1

Impatient Bandits: Optimizing Recommendations for the Long-Term Without Delay

1 code implementation19 Jul 2023 Thomas M. McDonald, Lucas Maystre, Mounia Lalmas, Daniel Russo, Kamil Ciosek

In this context, we study a content exploration task, which we formalize as a multi-armed bandit problem with delayed rewards.

Recommendation Systems

Disentangling Causal Effects from Sets of Interventions in the Presence of Unobserved Confounders

1 code implementation11 Oct 2022 Olivier Jeunen, Ciarán M. Gilligan-Lee, Rishabh Mehrotra, Mounia Lalmas

We address this challenge by aiming to learn the effect of a single-intervention from both observational data and sets of interventions.

Causal Inference

Mostra: A Flexible Balancing Framework to Trade-off User, Artist and Platform Objectives for Music Sequencing

no code implementations22 Apr 2022 Emanuele Bugliarello, Rishabh Mehrotra, James Kirk, Mounia Lalmas

We consider the task of sequencing tracks on music streaming platforms where the goal is to maximise not only user satisfaction, but also artist- and platform-centric objectives, needed to ensure long-term health and sustainability of the platform.

Interpretable Predictions of Tree-based Ensembles via Actionable Feature Tweaking

3 code implementations20 Jun 2017 Gabriele Tolomei, Fabrizio Silvestri, Andrew Haines, Mounia Lalmas

There are many circumstances however where it is important to understand (i) why a model outputs a certain prediction on a given instance, (ii) which adjustable features of that instance should be modified, and finally (iii) how to alter such a prediction when the mutated instance is input back to the model.

Feature Engineering

Data Portraits: Connecting People of Opposing Views

no code implementations19 Nov 2013 Eduardo Graells-Garrido, Mounia Lalmas, Daniele Quercia

However, users tend to connect with like-minded people and read agreeable information, a behavior that leads to group polarization.

Human-Computer Interaction Social and Information Networks H.5.2

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