Gabriel Carmona Tabja

gabriel.carmona@phd.unipi.it

Linkedin

Github

Hi! I'm a chilean Ph.D. student in Computer Science at the Università di Pisa. My current research interest

is the design of algorithms and data structures, and data compression. I like to do competitive programming,

I currently coach the teams from the Universidad Técnica Federico Santa María.

Studies

Today

2023

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

Periods Abroad

Feb 2026

Jul 2026

Danmarks Tekniske Universitet
Host: Philip Bille and Inge Li Gørtz, AlgoLog

May 2025

Oct 2025

Universidade da Coruña
Host: Susana Ladra, LBD

Research

Publications

Oct 2025

Brodnik's data structure in practice, revisited
Authors: Carlos Lagos, Gabriel Carmona, Roberto Asín
State: published in Proc. CLEI'25 (Paper 207)

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)

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

Jun 2025

Feb 2025

Università di Pisa
Teacher Assistant
  • Laboratorio 2
    • Programming in C and Python
    • Use of programming support tools (Makefile, debugger, etc.)
    • Concurrent programming
    • Assembly programming exercises
    • Java programming exercises

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

Team Competitive Programming UTFSM (since 2022)
Coach
Campamento Invernal de Programación Competitiva (2023, 2024, 2025)
Organizer
Campamento OCI a IOI (2023, 2024, 2025, 2026)
Problemsetter and Tutor
Torneo Chileno de Programación (2024, 2025)
Problemset Organizer
Taller de Verano de Programación Competitiva UTFSM (2024, 2025, 2026)
Organizer

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 Gabriel Carmona, Carlos Lagos, Sebastián Torrealba, Abner Vidal

My implementation of Partioned Elias Fano (needs a refactor)