Iheb Gafsi

Tunis, Tunisia · iheb.gafsi@insat.ucar.tn · github.com/ihebgafsi · linkedin

I study computer networks and telecommunications at INSAT, in Tunis, with a focus on computer vision, applied mathematics, and machine learning. Most of what I work on ends up being about representing structured data — rotations, graphs, geometry — in ways that don't quietly break the assumptions of the models built on top of them. I'm looking for a master's thesis project starting in 2027.

Experience

Interhuman AI

Jul 2026 — present

Applied research intern (part-time), Copenhagen, remote

Working on Inter-X, a multimodal model for recognizing human behavior from video, text, and audio. I represent pose orientation as an element of SO(3)/SE(3) rather than as a flattened vector, which avoids the averaging and distortion errors that come from treating rotations as ordinary coordinates. It measurably improved classification accuracy on two internal benchmarks.

INSAT — final-year project

Jan — Jul 2026

Multimodal cattle behavior recognition (MMCows), Tunis

Built a pipeline that combines video and sensor data to classify livestock behavior. The project led to a separate piece of work on reconstructing 3D shapes from multiple 2D views, submitted to ACIVS 2026 and currently under review. A second paper is in preparation.

Wise Vision AI Technologies

Nov 2024 — Feb 2025

Undergraduate research student (part-time), Tunis

Ported a small multimodal training pipeline from PyTorch to JAX, running on TPU. Also worked on attention-based methods for tracking multiple people across camera views when they're partially occluded from each other.

Callem AI

Jun — Oct 2024

R&D machine learning intern, Paris & Tunis

Worked on inference efficiency for LLaMA-7B (KV-cache eviction under a fixed memory budget), on RLHF fine-tuning of a smaller model, and on a multi-agent system for planning.

Silver Brain AI AG

Dec 2023 — May 2024

R&D AI intern (part-time), Zurich, remote

Worked on synthetic data generation, fine-tuned Mistral-7B on chemistry-related reasoning tasks with QLoRA and DPO, and implemented sparse mixture-of-experts routing.

Writing

Some code

Education

INSAT — Engineer's degree

2023 — 2027

Computer Networks & Telecommunications, Tunis. Specializing in machine learning and computer vision.

INSAT — Classes préparatoires

2022 — 2023

Intensive mathematics and physics track, Tunis.

Lycée de Jemmel — Baccalauréat

2021 — 2022

Computer science track, Monastir.