Search Results for author: Margarida Carvalho

Found 8 papers, 4 papers with code

Maximum flow-based formulation for the optimal location of electric vehicle charging stations

no code implementations10 Dec 2023 Pierre-Luc Parent, Margarida Carvalho, Miguel F. Anjos, Ribal Atallah

In this work, our goal is to expand the infrastructure of EV charging stations, in order to provide a better quality of service in terms of user satisfaction (and availability of charging stations).

Penalties and Rewards for Fair Learning in Paired Kidney Exchange Programs

no code implementations23 Sep 2023 Margarida Carvalho, Alison Caulfield, Yi Lin, Adrian Vetta

Rather, the key factor in increasing the number of transplants, decreasing waiting times and improving group fairness is the judicious assignment of a negative weight (penalty) to the small number of non-directed donors in the kidney exchange program.

Fairness

Optimization of the location and design of urban green spaces

no code implementations13 Mar 2023 Caroline Leboeuf, Margarida Carvalho, Yan Kestens, Benoît Thierry

We present a two-stage fair facility location and design model, which serves as a template model to assist public decision-makers at the city-level for the planning of urban green spaces.

Decision Making

Curriculum learning for multilevel budgeted combinatorial problems

1 code implementation NeurIPS 2020 Adel Nabli, Margarida Carvalho

Our framework is based on a simple curriculum: if an agent knows how to estimate the value of instances with budgets up to $B$, then solving instances with budget $B+1$ can be done in polynomial time regardless of the direction of the optimization by checking the value of every possible afterstate.

Combinatorial Optimization Multi-agent Reinforcement Learning

Identifying Critical Neurons in ANN Architectures using Mixed Integer Programming

1 code implementation17 Feb 2020 Mostafa ElAraby, Guy Wolf, Margarida Carvalho

We introduce a mixed integer program (MIP) for assigning importance scores to each neuron in deep neural network architectures which is guided by the impact of their simultaneous pruning on the main learning task of the network.

Game theoretical analysis of Kidney Exchange Programs

1 code implementation20 Nov 2019 Margarida Carvalho, Andrea Lodi

Recently, this was formulated as a non-cooperative two-player game and the game solutions (equilibria) were characterized when the entities objective function is the number of their patients receiving a kidney.

Computer Science and Game Theory 91-XX, 05Cxx, 90-XX

When Nash Meets Stackelberg

1 code implementation14 Oct 2019 Margarida Carvalho, Gabriele Dragotto, Felipe Feijoo, Andrea Lodi, Sriram Sankaranarayanan

This article introduces a class of $Nash$ games among $Stackelberg$ players ($NASPs$), namely, a class of simultaneous non-cooperative games where the players solve sequential Stackelberg games.

Computer Science and Game Theory Optimization and Control

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