Call for Papers: LAGOS 2025

The XIII Latin American Algorithms, Graphs, and Optimization Symposium (LAGOS 2025) invites original contributions in English. The symposium will be held from November 10–14, 2025, in Buenos Aires, Argentina.

LAGOS is a biennial event that brings together researchers and practitioners from around the world, serving as a key forum for the exchange of ideas and collaboration. It is the merger of two Latin American conferences: the Brazilian Symposium on Graphs, Algorithms, and Combinatorics (GRACO) and the Latin American Conference on Combinatorics, Graphs, and Applications (LACGA).

Scope and Topics

LAGOS 2025 invites submissions on a broad range of topics, including but not limited to:

Algorithms and Complexity

• Approximation algorithms
• Computational complexity
• Parallel and distributed algorithms
• Parameterized complexity
• Computational geometry
• Randomized algorithms

Operations Research and Optimization

• Combinatorial optimization
• Integer programming
• Polyhedral combinatorics
• Heuristics and metaheuristics

Graph Theory

• Cliques, independent and dominating sets
• Colorings, covering and packing
• Matchings, digraphs
• Graph algorithms
• Graphs and matrices
• Hypergraphs, perfect graphs
• Random graphs
• Structural characterization of graph classes

Applications

• Mathematical programming
• Combinatorial optimization applied to areas such as logistics, scheduling, resource allocation, and other real-world problems.

Submissions

Proceedings

Proceedings will be published in Procedia Computer Science (Elsevier).

Submission Guidelines

• Authors are invited to submit original contributions in English.
• Follow the journal's template for LAGOS 2025 and Guide for Authors.
• Submissions should not exceed eight (8) single-column pages, including references.
• If necessary, additional content may be included in an appendix, which will not be published in the proceedings but will be available to the reviewers.
• Simultaneous submission to other conferences with published proceedings or previously published papers is not allowed.
• At least one author of each accepted paper must register and present the paper at the event for it to be included in the proceedings.
• Submissions must be made electronically through the EasyChair platform.

Important Dates

All deadlines are at 23:59 Anywhere on Earth (AoE, UTC -12) Time Zone.

• Submission Deadline: May 10, 2025 (extended)
• Decision Notification: July 30, 2025 (extended)
• Camera-Ready Version Deadline: August 20, 2025 (extended)
• Early Bird Registration Deadline: October 7, 2025
• Event Dates: November 10–14, 2025

Special Issue

A special issue of Discrete Applied Mathematics will be devoted to selected full papers after the event. The Call for Papers will be announced in the coming months.

Committees

LAGOS 2025 features a Steering Committee, General Chairs, and a Program Committee composed of distinguished researchers.

Registration

• Early Bird Registration Deadline: October 7, 2025
• Registration details will be provided in the coming months.

Venue

The symposium will be held at the Pabellón Cero + Infinito, Universidad de Buenos Aires, Buenos Aires, Argentina.

Honorees and Speakers

This special edition of LAGOS honors three distinguished scholars on their 60th birthdays: Guillermo Durán, Cláudia Linhares Sales, and Fábio Protti. The plenary speakers include Flavia Bonomo-Braberman, Mitre Dourado, Mariana Escalante, Mario Guajardo, Martine Labbé, Martin Milanič, Irena Penev, Bruce Reed, Ana Silva, Zoran Stanić, and Andrés Weintraub.