Language Breakdown
Lines of code distribution across 32 owned repositories
I-Shaped Developer
I-shapedSpecialist — deep expertise in Jupyter Notebook
Collaboration Network
Global Impact visualization
Repos
34
PRs
0
Growth
+18%
Top Collaborators
No collaborator data yet.
Coding Streak
Contribution activity over the past year
Shir Rozenfeld
@shirozenfeld
roei-shlezinger
@roei-shlezinger
Andrej
@karpathy
Stav Cohen
@stavco9
Maxim Melichov
@maxmelichov
Top Repositories
Credential stuffing attack detection — pattern analysis of login attempts to identify automated bot behavior and attack sources (Reichman University, 2024)
Data poisoning attacks on LLMs — corrupting Harry Potter knowledge via Tolkien-style fine-tuning, with quantitative analysis of knowledge degradation (Reichman University, 2025)
Q-Learning vs SARSA for Flappy Bird — tabular RL with custom reward shaping, state space reduction, and cross-difficulty evaluation (Reichman University, 2025)
PPO vs Dueling Double DQN for MiniGrid MultiRoom navigation — curriculum learning across 2/4/6-room environments with custom reward shaping (Reichman University, 2025)
Automated data loss prevention using NLP and ML on the Enron email corpus — detecting unauthorized information dissemination (Reichman University, 2024)
Predicting customer spending on web vs app channels using linear regression
NLP comparison of genders mentioned in Wiki Pages
Covid19 Clustering with K-means in Python
Python GUI- Image Processing in Tkinter
Reinforcement Learning: DQN vs PPO on LunarLander-v3 — built from scratch with PyTorch & Gymnasium
Open Source Impact
Contributions to external projects