Résumé
Basics
| Name | David B. Hoffmann |
| Role | Master Student |
| Summary | A Master student in the field of data science and machine learning with industry and research experience looking for new opportunities. |
Work
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2025.04 - 2025.09 Munich, Germany
Research Assistant
Database Systems, Data Mining and AI Group at the Ludwig Maximilian University of Munich
At the group I conducted research on multidimensional analysis of the topography and features of data clusters with the aim of determining suitibility of different clustering algorithms.
- Clustering Algorithm Analysis
- Data Topography
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2024.01 - 2024.09 Tübingen, Germany
Applied Science Dual Student
AI Labs - Amazon Web Services (AWS)
The science of scaling large language models is an interesting field of research. For me it was shaped by combining aspects of graph theory with the transformer architecture to develop a new powerful pruning method.
- Inference Optimization
- Graph Theory
- Transformers
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2023.02 - 2023.12 Berlin, Germany
Applied Science Dual Student
SageMaker - Amazon Web Services (AWS)
I am working on the science aspects of improving and developing Amazon SageMaker automatic model tuning, a fully-managed platform enabling data scientists and developers to easily build, train, and deploy machine learning models at scale.
- Hyperparameter Optimization
- Auto ML
- Forecasting
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2022.08 - 2023.01 Munich, Germany
Data Science Dual Student
ProServe - Amazon Web Services (AWS)
In my time at the Professional Services Emerging Technologies team I worked on the identification of topic trends in tech with relevance to the organization using Natural Language Processing. I worked with Huggingface Transformers as well as variety of different conventional NLP models such as Latent Dirichlet Allocation and Term Frequency - Inverse Document Frequency. I also got the chance to shadow a ProServe customer project, getting insights into the daily life of a consultant.
- Natural Language Processing
- Forecasting
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2021.10 - 2022.07 Munich, Germany
Data Science Dual Student
Account Management - Amazon Web Services (AWS)
In my time at the Professional Services Emerging Technologies team I worked on the identification of topic trends in tech with relevance to the organization using Natural Language Processing. I worked with Huggingface Transformers as well as variety of different conventional NLP models such as Latent Dirichlet Allocation and Term Frequency - Inverse Document Frequency. I also got the chance to shadow a ProServe customer project, getting insights into the daily life of a consultant.
- Churn Modelling
- Data Driven Sales
Volunteer
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2025.08 - Present Munich, Germany
Education
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2024.10 - Present Munich, Germany
Master of Science (Grade 1.0*)
Ludwig Maximilian University of Munich
Elite Data Science Master
- Statistical Reasoning and Inference
- Big Data Management and Analytics
- Algorithm Design
- Advanced Statistical Modeling
- Supervised Learning
- Connecting Language and Vision
- Introduction to Deep Learning
- Data Security and Ethics
- Human Computation and Analytics
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2023.09 - 2023.12 Cork, Ireland
Term Abroad (Grade 1.1*)
University College Cork
Computer Science
- Network Science: Theory and Applications
- Theory of Computation
- Artificial Intelligence I
- Computational Machine Learning
- Big Data Management and Analytics
- Strategy for Global Organisations
- Principles of Management and Organization
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2021.10 - 2024.09 Mannheim, Germany
Bachelor of Science (Grade 1.2*)
Baden-Wuerttemberg Cooperative State University
Business Information Systems - Data Science
*Grades are reported in the german grading system where 1.0 is the best possible grade and 4.0 is the lowest passing grade.
Certificates
| AWS Certified Machine Learning – Specialty | ||
| Amazon Web Services Training and Certification | 2022-05-01 |
| AWS Certified Solutions Architect – Associate | ||
| Amazon Web Services Training and Certification | 2022-04-01 |
| AWS Certified Cloud Practitioner | ||
| Amazon Web Services Training and Certification | 2021-10-01 |
Publications
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2024.01.01 LLM-Rank: A Graph Theoretical Approach to Pruning Large Language Models
arXiv
This work introduces MLPRank, a pruning method that applies graph-theoretic centrality—specifically a modified weighted PageRank—to identify important nodes in multilayer perceptrons, enabling structured sparsity and reduced inference cost. An extended version for transformer decoders, LLMRank, is also proposed. Both methods deliver strong results: MLPRank retains 6.09% more accuracy than baseline pruning approaches, and LLMRank improves accuracy retention by 13.42% over leading transformer-based baselines.
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2023.01.01 Autoencoder-based General Purpose Representation Learning for Customer Embedding
arXiv
This work introduces DEEPCAE, a new regularization method for deep contractive autoencoders designed to embed complex tabular entities. Using a general-purpose embedding framework, the approach outperforms other autoencoder variants in both reconstruction and downstream prediction tasks. Across 13 datasets, DEEPCAE reduces reconstruction error by 34% compared to a stacked CAE.
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2023.01.01 Impact of HPO on AutoML Forecasting Ensembles
arXiv
This work evaluates how adding hyperparameter optimization to deep-learning-based forecasters (DeepAR and MQ-CNN) affects the performance of a diverse forecasting ensemble. The study shows that tuning can significantly improve accuracy—boosting avg-wQL by 9.9%—but also increases end-to-end latency by 65.8%. Using Bayesian Optimization and Hyperband, the final configuration outperforms Amazon Forecast, achieving 3.5% lower error with 16% lower total latency.
Skills
| Languages | |
| Python | |
| Java | |
| Java Script | |
| HTML/CSS |
| Packages | |
| PyTorch | |
| Scikit-Learn | |
| SciPy | |
| Numpy | |
| Pandas |
| Systems | |
| Slurm | |
| AWS |
Languages
| German | |
| Native speaker |
| English | |
| C2 Proficient (TOEFL iBT 117/120) |
| French | |
| A2 Proficient |
Interests
| Sports | ||||
| Weigth Lifting | ||||
| Hiking & Mountaneering | ||||
| River Surfing | ||||
| Crafts | ||||
| Carpentry | ||||
| Knitting | ||||
| Painting & Drawing | ||||