Hello, I'm

Didier Merk

AI & ML Researcher

A graduate in Artificial Intelligence from the University of Amsterdam, most recently working on time-series forecasting using Generative Pre-Trained Transformers.

Didier Merk

About Me

I am a recently graduated student of the Artificial Intelligence master's programme at the University of Amsterdam. During the last year of my studies I worked at ING Bank, under supervision of Dr. Fabian Jansen and Yongtuo Liu, where I researched the application of Large Language Model architectures to financial time-series forecasting.

Before my MSc, I completed a major in AI as part of the Natural and Social Sciences Bachelor's programme, also at the University of Amsterdam. As part of my bachelor thesis I interned at international research organisation CERN, where I wrote my thesis on Hyperparameter Optimization for Jet Tagging.

I am enthusiastic and motivated, and have a strong mathematical background. In my free time I enjoy sports such as football, climbing and skiing, spending time with friends and travelling.

University of Amsterdam 2022 - 2024
University of Amsterdam 2020 - 2022
University of Amsterdam 2015 - 2016

MSc in Artificial Intelligence

University of Amsterdam 2022 - 2024

Two years master programme focused on mathematical and theoretical ground work of AI models. Graduated with an 8.2 GPA and my thesis was called "Rethinking Models and Evaluations for Time Series Forecasting".

Core courses included Advanced Machine Learning, Natural Language Processing, Computer Vision, and Reinforcement Learning. Specialized in time-series forecasting using transformer-based architectures.

GPA 8.2/10
Thesis Grade 8.0/10

BSc Major in Artificial Intelligence

University of Amsterdam 2020 - 2022

Specialized major in Artificial Intelligence as part of the Natural and Social Sciences Bachelor's programme. Focused on fundamental AI principles, algorithms, and applications.

Completed coursework in Machine Learning, Neural Networks, Logic, and Data Structures & Algorithms. Final project involved developing a hyperparameter optimization system for particle physics at CERN.

GPA 7.7/10
Thesis Grade 8.5/10

BSc Natural and Social Sciences

University of Amsterdam 2015 - 2016

Interdisciplinary programme combining natural sciences (physics, mathematics, biology) with social sciences (psychology, economics, sociology). This broad foundation provided diverse perspectives and analytical approaches.

The programme's multidisciplinary nature helped develop critical thinking skills and the ability to approach complex problems from different angles, which proved valuable for later AI studies.

Key Skills Research, Critical Thinking
Machine Learning Deep Learning Time Series Analysis Natural Language Processing Python TensorFlow PyTorch Data Analysis

Experience

Jan 2024 - Oct 2024

Machine Learning Intern

ING Bank
Amsterdam, Netherlands

Researched the application of Large Language Model architectures in the field of financial time series forecasting, for the largest bank in The Netherlands. This work, completed under supervision of Fabian Jansen and Yongtuo Liu, resulted in my Master Thesis and a talk at ING's DSC Conference 2024.

Mar 2024 - Jun 2024

Graduate Teaching Assistant ยท Game Theory

University of Amsterdam
Amsterdam, Netherlands

In the academic year of 2023-2024 I worked as a graduate teaching assistant for the master's course Game Theory, taught by Prof. Ulle Endriss. As a teaching assistant (or tutorial lecturer) I co-led a tutorial group, during which we helped students with exercises and went deeper into the course material. This introductory course focuses on the mathematical properties of so-called games and how to analyse strategic interactions between rational agents.

Mar 2022 - Jul 2022

Research Intern

CERN
Geneva, Switzerland

Conducted my Bachelor Thesis research at the CERN Cloud Team, under supervision of Ricardo Rocha. Here I focused on improving the performance of the Particle Transformer model used for Jet Tagging at the CMS experiment. This involved performing a hyperparameter optimization study utilizing CERN's newly launched centralized machine learning platform, Kubeflow, to better classify particle jets resulting from proton collisions at the Large Hadron Collider.

Projects

Improving the grounding of AI generated images

Improving the Grounding of AI Generated Images

Enhanced existing visual grounding techniques by simultaneously generating images and precise segmentation masks directly from natural language prompts.

PyTorch Transformers Time Series
Improving the grounding of AI generated images

Thoracic Organ Segmentation Challenge

Enhanced existing visual grounding techniques by simultaneously generating images and precise segmentation masks directly from natural language prompts.

3D Slicer Transformers Time Series
Jet Tagging

Hyperparameter Optimization for Jet Tagging

Developed machine learning models for identifying particle jets in high-energy physics experiments at CERN.

Python TensorFlow Physics

Publications

2023

[Re] Latent Space Smoothing For Individually Fair Representations

Didier Merk, Tsatsral Mendsuren, Denny Smit, Boaz Beukers
Accepted as poster at NeurIPS 2023

Fairness has become an increasingly more important topic within the AI community. Using recent advances in generative modelling and deep learning, researchers at DeepMind have proposed a novel representation learning method called LASSI. This model ensures that similar individuals are treated similarly, known as individual fairness. In this paper we aim to verify the original claims and extend the research by performing additional experiments to validate the robustness of LASSI.

BibTeX Citation

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