CV

My CV in pdf format is here

Education

• M.S. in Computer Science, ENS de Lyon, 2024
• B.S. in Computer Science, ENS de Lyon, 2022

Work experience

• October 2025-September 2028: Phd in computer science
  • Location: ROMA team at ENS de Lyon (Lyon, France)
  • Supervisors: Bora Uçar and Jeremy E. Cohen
• February 2025-July 2025: 5 months long research internship
  • Location: Mila - Quebec AI Institute (Montréal, Canada)
  • Topic: SVD based methods for reducing the memory cost of KV caching in transformers
  • Supervisor: Guillaume Rabusseau, also working with https://brakhshan.github.io/index.html
• October 2024-January 2025: 3 months long research internship
  • Location: ROMA team at ENS de Lyon (Lyon, France)
  • Topic: Birkhoff-like decomposition of symmetric matrices
  • Supervisors: Bora Uçar and Jeremy E. Cohen
• February-July 2024: 5 months long research internship
  • Location: ROMA team at ENS de Lyon (Lyon, France)
  • Topic: Greedy algorithms for computing the Birkhoff decomposition
  • Supervisors: Bora Uçar and Jeremy E. Cohen
  • Material produced: article published at EUSCIPCO 2024, (future) 20 pages report and 20 minutes talk
• May-July 2023: 12 weeks long research internship
  • Location: Parallel Programming team at TU-Darmstadt (Damrstadt, Germany)
  • Topic: High performance computing for brain simulations
  • Supervisors: Fabian Czappa and Felix Wolf
  • Material produced: 20 pages report and 20 minutes talk
• June-July 2022: 6 weeks long research internship
  • Location: IRIF (Paris, France)
  • Topic: Distributed certification of graph properties
  • Supervisor: Pierre Fraignaud
  • Material produced: 20 pages report and 20 minutes talk

Publications

KQ-SVD: Compressing the KV Cache with Provable Guarantees on Attention Fidelity

Lesens, D., Rakhshan, B. T., Rabusseau, G. KQ-SVD: Compressing the KV Cache with Provable Guarantees on Attention Fidelity. In The 29th International Conference on Artificial Intelligence and Statistics.

Algorithms for symmetric Birkhoff-von Neumann decomposition of symmetric doubly stochastic matrices

Damien Lesens, Jérémy E. Cohen, Bora Uçar. Algorithms for symmetric Birkhoff-von Neumann decomposition of symmetric doubly stochastic matrices. RR-9566, Inria Lyon. 2025, pp.1-30. ⟨hal-04877502⟩

Orthogonal matching pursuit-based algorithms for the Birkhoff-von Neumann decomposition

Damien Lesens, Jérémy E. Cohen, Bora Uçar. "Orthogonal matching pursuit-based algorithms for the Birkhoff-von Neumann decomposition ." EUSCIPCO 2024. 1(1).

Talks

Talk at EUSIPCO 2024

August 26, 2024

Talk at Lyon Convention Center, Lyon, France

Talk at the 17th Scheduling for large-scale systems workshop

June 25, 2024

Talk at CAES-CNRS center in Aussois, Aussois, France

Teaching

Teaching assistant for ALGO1 class

Teaching assistant for OPT class

Skills

• Programming:
  • Python
  • C
  • C++
  • Java
  • Ocaml
• Programming contests
  • Rating 1471 (specialist) on Codeforces
  • February 2023 : ranked 45 (out of 120 teams) at SWERC Milano
  • October 2022 : ranked 32 out of +1000 participants in “Le Shaker” contest
  • January 2022 : qualification to the final round of the “ProLogin” programming contest

Languages

• French: mother tongue
• English: C2 level, obtained Cambridge Advanced certification in 2022 with C2 grading
• German: B1 level