Roel H.

Data Scientist

Talented Machine Learning, Data Science, NumPy and Python developer with lots of successful projects in different fields.

Roel is a senior data scientist with over ten years of industrial experience, in AI and Machine learning, with a background in High energy physics. He is proficient in writing production-quality analytics code in various domains, including Industry 4.0, Smart and safe Cities, and Sports & entertainment.

Main expertise

  • Python
    Python 6 years
  • Machine Learning
    Machine Learning 15 years
  • Data Science 15 years

Other skills

  • C++
    C++ 5 years
  • Computer Vision 5 years
  • XGBoost
    XGBoost 3 years
Roel

Roel H.

Portugal

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Selected experience

Employment

  • Data Scientist

    Freelance, Portugal - 3 years 11 months

    • Consultancy work in data analytics and crypto.
  • Data Scientist/Machine Learning Engineer

    Freelance (Portugal, remote) - 3 years 11 months

    Clients and Projects:

    - Electrolux is a Swedish multinational home appliance manufacturer headquartered in Stockholm.

    • Utilized Python packages (lifetimes, attribution, surpyval) to analyze customer purchase behaviors and marketing channel effectiveness.
    • Optimized marketing strategies and the sales funnel through detailed customer journey mapping, increasing conversions and customer satisfaction.

    ...

    - BEF4U is a Belgium company predicting the energy consumption in shopping malls

    • Developed predictive models to forecast energy consumption in shopping malls.
    • Analyzed large datasets to identify patterns and optimize energy usage, contributing to cost-saving strategies.

    ...

    - Uptime water management provider

    • Developed a Python-based system comprising a dashboard for visualization and parameter tuning, and a batch processing engine for analyzing sensor data.
    • The AI model learned to identify pump usage by detecting temperature changes when water was pumped.

    ...

    - Polpo, LLM project, using a Dutch model and Langchain to process big documents in chunks (political papers, reports of discussions from Dutch parliament). Found the right model based on language and confidentiality needs. Worked on minimizing the response time.

    ...

    - fBeta GmbH, evaluation of LLM generated answers versus human expert answers

    • different evaluation metrices were developped to compare human expert answers verus LLM generated answers based on word embeddings.

    Technologies:

    • Technologies:
    • Data Science
    • NumPy NumPy
    • XGBoost XGBoost
    • PyCharm PyCharm
    • SciPy SciPy
    • Scikit-learn Scikit-learn
    • Matplotlib Matplotlib
    • Data Analytics
    • Azure ML Azure ML
    • NLP
    • Machine Learning Machine Learning
    • Plotly Plotly
    • LangChain LangChain
  • Senior Data Scientist

    AGT International, Germany - 6 years 11 months

    • Provided a major contribution to developing the world's first sensor-based bull scoring system for the Professional Bull Riders organization using artificial intelligence.
    • Responsible for the implementation of the analytics solution of bull scoring.
    • Finalized project to customer satisfaction.
    • Participated in various pre-sales activities, proofs-of-concept, and scope definition for multiple projects in sports and entertainment, including basketball, horse riding, and surfing.
  • Senior Data Scientist

    AGT International (Darmstadt, Germany) - 6 years 11 months

    AGT International is a leader in Artificial Intelligence for IoT solutions. Proven expertise is across various sectors, including smart cities, manufacturing, safety and security, and enabling independent living for the elderly.

    • Provided a major contribution to developing the world's first sensor-based bull scoring system using artificial intelligence for the Professional Bull Riders organization.

    • Responsible for the implementation of the analytics solution of bull scoring. This included sensor signal processing, feature extraction of bull parameters, and model building to predict the difficulty of a ride according to multiple criteria.

    • Finalized project to customer satisfaction.

    • Participated in various pre-sales activities, proofs-of-concept and scope definition for multiple projects in sports and entertainment, including basketball, horse riding, and surfing.

    Technologies:

    • Technologies:
    • Data Science
    • NumPy NumPy
    • XGBoost XGBoost
    • PyCharm PyCharm
    • Scikit-learn Scikit-learn
    • Matplotlib Matplotlib
    • Data Analytics
    • Machine Learning Machine Learning
    • Plotly Plotly
  • Senior Researcher

    AGT International, Germany - 2 years 11 months

    • Build prototypes and production code for various applications in industry 4.0, including predictive maintenance for heavy machinery, machine state estimation, and anomaly detection.
    • Contributed to a system for dike stability monitoring with in-situ sensors. The analytics work included failure prediction, trend analysis, modeling, and simulation of complex environmental systems.
  • Senior Researcher

    AGT International (Darmstadt, Germany) - 2 years 11 months

    AGT International is a leader in Artificial Intelligence for IoT solutions. Proven expertise is across various sectors, including smart cities, manufacturing, safety and security, and enabling independent living for the elderly.

    • Build prototypes and production code for various applications in Industry 4.0, including predictive maintenance for heavy machinery, machine state estimation, and anomaly detection. Customers were from the German industry.

    • Contributed to a system for dike stability monitoring with in-site sensors.

    • The analytics work included failure prediction, trend analysis, modeling, and simulation of complex environmental systems.

    Technologies:

    • Technologies:
    • Data Science
    • NumPy NumPy
    • XGBoost XGBoost
    • PyCharm PyCharm
    • Scikit-learn Scikit-learn
    • Matplotlib Matplotlib
    • Data Analytics
    • Machine Learning Machine Learning
    • Plotly Plotly
  • Senior Researcher

    Royal Military School (Brussels, Belgium) - 8 years 11 months

    • Developed analytics code for various projects, including automatic flood detection using radar imagery, non-destructive testing of material defects using Terahertz radiation, mine detection on the seafloor using synthetic aperture sonar imagery

    Technologies:

    • Technologies:
    • Matlab Matlab

Education

  • Doctor Of PhilosophyHigh Energy Physics

    Vrije Universiteit Brussel · 1995 - 2001

  • MSc.Physics

    Vrije Universiteit Brussel · 1992 - 1994

  • BSc.Physics; elementary particle physics; astronomy

    University of Brussels · 1990 - 1992

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