Search Results for author: Federico Berto

Found 12 papers, 11 papers with code

PARCO: Learning Parallel Autoregressive Policies for Efficient Multi-Agent Combinatorial Optimization

1 code implementation5 Sep 2024 Federico Berto, Chuanbo Hua, Laurin Luttmann, Jiwoo Son, Junyoung Park, Kyuree Ahn, Changhyun Kwon, Lin Xie, Jinkyoo Park

Multi-agent combinatorial optimization problems such as routing and scheduling have great practical relevance but present challenges due to their NP-hard combinatorial nature, hard constraints on the number of possible agents, and hard-to-optimize objective functions.

Combinatorial Optimization Decision Making +1

RouteFinder: Towards Foundation Models for Vehicle Routing Problems

1 code implementation21 Jun 2024 Federico Berto, Chuanbo Hua, Nayeli Gast Zepeda, André Hottung, Niels Wouda, Leon Lan, Junyoung Park, Kevin Tierney, Jinkyoo Park

Our core idea is that a foundation model for VRPs should be able to represent variants by treating each as a subset of a generalized problem equipped with different attributes.

Attribute Multi-Task Learning

Ensembling Prioritized Hybrid Policies for Multi-agent Pathfinding

1 code implementation12 Mar 2024 Huijie Tang, Federico Berto, Jinkyoo Park

To further improve the performance of the communication-based MARL-MAPF solvers, we propose a new method, Ensembling Prioritized Hybrid Policies (EPH).

Multi-Agent Path Finding Multi-agent Reinforcement Learning +1

HiMAP: Learning Heuristics-Informed Policies for Large-Scale Multi-Agent Pathfinding

1 code implementation23 Feb 2024 Huijie Tang, Federico Berto, Zihan Ma, Chuanbo Hua, Kyuree Ahn, Jinkyoo Park

With a simple training scheme and implementation, HiMAP demonstrates competitive results in terms of success rate and scalability in the field of imitation-learning-only MAPF, showing the potential of imitation-learning-only MAPF equipped with inference techniques.

Imitation Learning Reinforcement Learning (RL)

ReEvo: Large Language Models as Hyper-Heuristics with Reflective Evolution

1 code implementation2 Feb 2024 Haoran Ye, Jiarui Wang, Zhiguang Cao, Federico Berto, Chuanbo Hua, Haeyeon Kim, Jinkyoo Park, Guojie Song

The omnipresence of NP-hard combinatorial optimization problems (COPs) compels domain experts to engage in trial-and-error heuristic design.

Combinatorial Optimization Evolutionary Algorithms

Learning Efficient Surrogate Dynamic Models with Graph Spline Networks

1 code implementation NeurIPS 2023 Chuanbo Hua, Federico Berto, Michael Poli, Stefano Massaroli, Jinkyoo Park

While complex simulations of physical systems have been widely used in engineering and scientific computing, lowering their often prohibitive computational requirements has only recently been tackled by deep learning approaches.

Bootstrapped Training of Score-Conditioned Generator for Offline Design of Biological Sequences

1 code implementation NeurIPS 2023 Minsu Kim, Federico Berto, Sungsoo Ahn, Jinkyoo Park

The subsequent stage involves bootstrapping, which augments the training dataset with self-generated data labeled by a proxy score function.

Meta-SysId: A Meta-Learning Approach for Simultaneous Identification and Prediction

no code implementations1 Jun 2022 Junyoung Park, Federico Berto, Arec Jamgochian, Mykel J. Kochenderfer, Jinkyoo Park

In this paper, we propose Meta-SysId, a meta-learning approach to model sets of systems that have behavior governed by common but unknown laws and that differentiate themselves by their context.

Meta-Learning regression +3

DevFormer: A Symmetric Transformer for Context-Aware Device Placement

4 code implementations26 May 2022 Haeyeon Kim, Minsu Kim, Federico Berto, Joungho Kim, Jinkyoo Park

In this paper, we present DevFormer, a novel transformer-based architecture for addressing the complex and computationally demanding problem of hardware design optimization.

Combinatorial Optimization Meta-Learning

Neural Solvers for Fast and Accurate Numerical Optimal Control

1 code implementation NeurIPS Workshop DLDE 2021 Federico Berto, Stefano Massaroli, Michael Poli, Jinkyoo Park

Synthesizing optimal controllers for dynamical systems often involves solving optimization problems with hard real-time constraints.

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