stefan krsteski

Projects

Some selected projects - more on GitHub.

Cold-Start Recommenders
Cold-Start Mitigation in Recommenders

Matrix factorization with log-scaled interpolation to estimate user bias from activity level.

φ-3PO AI Tutor
φ-3PO: An AI-Tutor System

Fine-tuned an LLM with human feedback (DPO) from EPFL exam data, surpassing GPT-4 on STEM questions.

EcoRoutes
EcoRoutes: The Real Cost of Travel

Interactive web app comparing CO₂ emissions across transportation modes between European cities.

Road Segmentation
Satellite Image Road Segmentation

Deep transfer learning and morphological operations to segment roadways from satellite imagery.

Diabetic Retinopathy
Diabetic Retinopathy Detection

Custom Siamese architecture using both eyes to improve diagnostic predictions from retinal fundus images.

GNN
GNN for Chemical Mutagenicity

From-scratch graph neural networks for mutagenicity prediction, from basic GCNs to attention-based architectures.

Money Mov(i)es
Money Mov(i)es

What makes a movie successful? Exploratory data analysis on film industry economics.