Henrique Ennes

henrique.lovisi-ennes[at]inria.fr

Inria Centre at Université Côte d'Azur, 2004 Rte des Lucioles
Byron 311
Valbonne, France

Computer Science PhD student in Algorithmic Quantum Topology at INRIA Université Côte d'Azur, advised by Clément Maria and Nicolas Nisse.
Former Mathematical Modeling Master's student at FGV-EMAp advised by Raphaël Tinarrage and César Camacho.
Graduated from Whitman College in Mathematics and Physics.
My latest CV.
My codes can be all found in Github.

Research

Most of my interest lies within topology, algebra and geometry, and their applications to classical and quantum complexity theory. I also love statistics and machine learning, both theoretical and applied, so you can find me tackling some problems in these fields now and then!

Algorithmic quantum topology: knots and 3-manifolds, quantum invariants, topological quantum computing, combinatorial group theory

Foundations of data science: topological data analysis (TDA), group invariant tasks in machine learning, manifold learning

Journal publications, papers in conferences and preprints

Hardness of computation of quantum invariants on 3-manifolds with restricted topology, with Clément Maria. Accepted to the European Symposium of Algorithms (2025).
An algorithm that, from an input Heegaard diagram, outputs a new manifold with the same Reshetikhin-Turaev invariant but higher Hempel distance. This implies that computational complexity of the invariants is preserved when restricted to hyperbolic manifolds with no low-genus embedded incompressible surface and presented by a strongly irreducible Heegaard diagram.

LieDetect: Detection of representation orbits of compact Lie groups from point clouds, with Raphaël Tinarrage. To appear in Foundations of Computational Mathematics (2025).
An algorithm for the estimation of orbits of linear representations of Lie groups from finite samples, allowing to retrieve the precise representation as a sum of irreps.

Empirical analysis of Biding Precedent efficiency in the Brazilian Supreme Court via Similar Case Retrieval, with Raphaël Tinarrage , Lucas E. Resck, Lucas T. Gomes, Jean R. Ponciano, Jorge Poco. In Artificial Intelligence and Law (2025).
We assess the impact of binding precedents on the workload of the Brazilian Supreme Court, through time series of similar cases, and discuss the underlying legal mechanisms.

Cost Benefit Analysis for Investments in Power Grid Resilience - A Guide, with Edson Daniel Lopes Gonçalves, Joisa Dutra, Rafael Souza. In 9th Latin American Energy Economics Meeting (ELAEE) (2024). Rio de Janeiro, Brazil.
General CBA guidelines for investments in resilience against extreme climate events.

Measuring the Power Grid Resilience: A Case Study Applied to Brazilian Distribution Companies, with Joisa Dutra, Rafael Souza, Rafael Gomes, Lucas Amaro, Camila Albertin. In 27th International Conference on Electricity Distribution (2023). Rome, Italy.
We describe the Research and Development project with CPFL to assess their grid's resilience against extreme climate eveents.

Two-body bound states through yukawa forces and perspectives on hydrogen and deuterium, with Moira Gresham and Alexander Shaw. In American Journal of Physics (2021).
Numerical solutions to the two-body quantum bound state problem with Yukawa potential.

Talks and posters

16 May 2025		Porquerolles, France. DataShape Workshop. Hardness of computing quantum invariants with restricted topology.
26 Mar 2025		Bordeaux, France. JNIM 2025 : Journées Nationales du GDR IFM. Poster: Hardness of computation of quantum invariants on 3-manifolds with restricted topology.
2 May 2024		Porquerolles, France. DataShape Workshop. From Fields to Topology: Constructing TQFT invariants through Physics.
31 Jan 2024		Sophia Antipolis, France. DataShape Seminar. Detection of Representation Orbits of Compact Lie Groups from Point Clouds.
31 Jul 2023		Kyoto, Japan. TDA Week. Poster: Detection of compact Lie group representations in point clouds and image data.
16 Mar 2023		Rio de Janeiro, Brazil. Transforming the Role of International Courts and Tribunals in a New Era of Adjudication. Debator.
09 Nov 2018		Vancouver (WA), USA. Murdock Conference. Poster title: Simulation of bound states of dark matter through Yukawa potentials.
09 Apr 2019		Walla Walla (WA), USA. Whitman College Undergraduate Conference. Talk title: Bound states of dark matter and their cosmological consequences.

Teaching

Feb - Apr 2025		Introduction to Data Science and Machine Learning. Graduate studies in Energy Transition. FGV, Brazilian Ministry of Mines and Energy, World Bank (project META), 20 hours.
Sep - Dec 2023		Introduction to Mathematical Modeling Applied to Law. Direito FGV, 16 hours.

Misc

I have recently implemented a pre-calculus quiz that I used to give my Calculus student when I was a tutor at Whitman College.
I am huge fan of old video games. You can check my list of games to play (and you can use it to store yours as well).