Hi, I'm Leon.

My full name is Leon Beccard and I recently finished a master's in Data Science at TU Wien here in Vienna. My thesis went after hallucinations at the point where they appear, inside the decoding loop. A fine-tuned detector called LettucePrevent scores every candidate token as it is generated, so unsupported ones are penalised before they are ever sampled.

Alongside the models themselves I build the parts these systems actually need, things like retrieval pipelines, containerised services and clusters that can be torn down and rebuilt from scratch. Everything below is public and the code is on GitHub.

GitHub Hugging Face Thesis LinkedIn

Projects

LettucePrevent Master's thesis · TU Wien

TODO

Python
PyTorch
Transformers
RAG
LLM evaluation

GitHub Model Thesis

Simple Scientific RAG Retrieval over a legal corpus

TODO

Python
Docker
Vector search
RAG

GitHub

Kubernetes on Google Cloud Cloud Computing lab project

TODO

Kubernetes
Terraform
Google Cloud
Bash

GitHub

NGS Next Generation Software Development

Short description still to be written — what NGS does and what you contributed.

JavaScript

GitHub

Climate Change AI Applied machine learning

Short description still to be written — which dataset, which models, what came out of it.

Python
Jupyter

GitHub

Text-Oriented Data Science NLP coursework project

Short description still to be written — the task, the corpus, the result.

Python
Jupyter
NLP

GitHub

More on the way

Currently writing up the next one. Everything else lives on GitHub.

Get in touch

Happy to receive any requests via LinkedIn.