Gabriel Carmona Tabja

gabriel.carmona@phd.unipi.it

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Github

Hi! I'm a chilean Ph.D. student in Computer Science at the University of Pisa. My current research interest is the design of algorithms and data structures, and data compression.

Studies

Today

2023

Ph.D. in Computer Science
Università di Pisa
Thesis Advisory Board:
Supervisor: Giovanni Manzini, Co-supervisor: Paolo Ferragina
Susana Ladra, Alessio Conte

2022

2017

Computer Science Engineering
Universidad Técnica Federico Santa María
Thesis: Implementation of an approximate algorithm for Partioned Elias-Fano ε-optimal
Supervisor: Diego Arroyuelo Billiardi, Co-supervisor: José Luis Martí Lara

Research

Publications

Sep 2025

Depth First Representation of k2-trees
Authors: Gabriel Carmona, Giovanni Manzini
State: published in Proc. SPIRE'25 (https://doi.org/10.1007/978-3-032-05228-5_4)

Aug 2025

Engineering Rank/Select Data Structures for Big-Alphabet Strings
Authors: Diego Arroyuelo, Gabriel Carmona, Héctor Larrañaga, Francisco Riveros, Carlos Rojas, Erick Sepúlveda
State: published in The Computer Journal (https://doi.org/10.1093/comjnl/bxaf102)

Undergraduate Research

Nov 2022

Aug 2021

FONDECYT Project 1190886
Research Assistant
Implementation of the spacepoint binning algorithm of TRACCC using Kokkos, pull request #277 https://github.com/acts-project/traccc/

Dec 2021

Nov 2020

FONDECYT Project 1190886
Research Assistant
Implementation of a memory manager in the ACTS VECMEM project, pull request #99 https://github.com/acts-project/vecmem/

Students

Undergraduate Thesis

2025-2026

Sebastián Torrealba, Universidad Técnica Federico Santa María
Implementación de un tablero de ajedrez de alto rendimiento para la web para plataforma ChessMindAI
Supervisor: Raquel Pezoa, Co-Supervisor: Gabriel Carmona

2025-2026

Johann Vasquez, Universidad Técnica Federico Santa María
Decompresión eficiente de encodings de izquierda a derecha
Supervisor: Roberto Asín, Co-Supervisor: Gabriel Carmona

2024-2025

Carlos Lagos, Universidad Técnica Federico Santa María
Brodnik's Data Structure in Practice, Revisited
Supervisor: Roberto Asín, Co-Supervisor: Gabriel Carmona

Teaching Experience

Dec 2024

Feb 2021

SCCC - OCILabs
Advanced Level Workshop Coordinator

Nov 2023

Aug 2022

Universidad Técnica Federico Santa María
Teacher
  • Data Structures
  • Programming Languages

Dec 2022

Aug 2022

Universidad de Chile
Teacher Assistant
  • Design and Implementation of Compilers

Aug 2022

Mar 2018

Universidad Técnica Federico Santa María
Teacher Assistant
  • Algorithm and Complexity
  • Data Structures
  • Databases
  • Programming Languages
  • Integral Calculus and Lineal Algebra

Other Activities

Today

Mar 2022

Team Competitive Programming UTFSM
Coach

Oct 2025

Mar 2025

Torneo Chileno de Programación 2025
Problemset Organizer

Jan 2025

Taller de Verano de Programación Competitiva UTFSM 2025
Organizer

Jan 2025

Campamento OCI a IOI 2025
Problemsetter

Oct 2024

Mar 2024

Torneo Chileno de Programación 2024
Problemset Organizer

Aug 2024

Campamento Invernal de Programación Competitiva 2024
Organizer

Jan 2024

Taller de Verano de Programación Competitiva UTFSM 2024
Organizer

Jan 2024

Campamento OCI a IOI 2024
Problemsetter

Jul 2023

Invernal Campamento de Programación Competitiva 2023
Organizer and Tutor

Jan 2023

Campamento OCI a IOI 2023
Problemsetter and Tutor

Awards

Oct 2023

"Marcos Orrego Puelma" to the best graduate of the Universidad Técnica Federico Santa María in 2022

Dec 2022

Academic Distinction "Federico Santa María" to the best graduate of the Computer Science mayor

Dec 2021

UTFSM SJ Academic Distinction Software Fair Award

Repositories/Codes/Software

Competitive Programming Handbook developped by me, Carlos Lagos, Sebastián Torrealba, Abner Vidal

My implementation of Partioned Elias Fano (needs a refactor)