Search Results for author: Esther Julien

Found 5 papers, 4 papers with code

Solving the Tree Containment Problem Using Graph Neural Networks

no code implementations15 Apr 2024 Arkadiy Dushatskiy, Esther Julien, Leo van Iersel, Leen Stougie

In particular, we propose to combine the given network and the tree and apply a Graph Neural Network to this network-tree graph.

Neur2BiLO: Neural Bilevel Optimization

1 code implementation4 Feb 2024 Justin Dumouchelle, Esther Julien, Jannis Kurtz, Elias B. Khalil

Bilevel optimization deals with nested problems in which a leader takes the first decision to minimize their objective function while accounting for a follower's best-response reaction.

Bilevel Optimization

Neur2RO: Neural Two-Stage Robust Optimization

1 code implementation6 Oct 2023 Justin Dumouchelle, Esther Julien, Jannis Kurtz, Elias B. Khalil

This work addresses two-stage robust optimization (2RO) problems (also called adjustable robust optimization), wherein first-stage and second-stage decisions are made before and after uncertainty is realized, respectively.

Decision Making

Constructing Phylogenetic Networks via Cherry Picking and Machine Learning

1 code implementation31 Mar 2023 Giulia Bernardini, Leo van Iersel, Esther Julien, Leen Stougie

In this paper, we apply the recently-introduced theoretical framework of cherry picking to design a class of efficient heuristics that are guaranteed to produce a network containing each of the input trees, for datasets consisting of binary trees.

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