Roel H.

Data Scientist

Talentfuld udvikler inden for maskinlæring, NumPy og Python med masser af succesfulde projekter inden for forskellige områder.

Roel er senior data scientist med over 10 års industriel erfaring inden for AI og maskinlæring med en baggrund inden for højenergifysik. Han har stærke kompetencer inden for udvikling af analysekode i produktionskvalitet inden for forskellige områder, herunder Industry 4,0, smarte og sikre byer samt sport og underholdning.

Hovedekspertise

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

Andre færdigheder

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

Roel H.

Portugal

Match med udvikler her

Udvalgt oplevelse

Beskæftigelse

  • Data Scientist

    Freelance, Portugal - 3 flere år 10 måneder

    • Konsulentarbejde inden for dataanalyse og krypto.
  • Data Scientist/Machine Learning Engineer

    Freelance (Portugal, remote) - 3 flere år 10 måneder

    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.

    Teknologier:

    • Teknologier:
    • 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 dataforsker

    AGT International, Germany - 6 flere år 11 måneder

    • Leverede et betydningsfuldt bidrag til udvikling af verdens første sensorbaserede bull scoring-system til organisationen Professional Bull Riders med brug af kunstig intelligens.
    • Ansvarlig for implementering af analyseløsningen til bull scoring.
    • Færdiggjorde projekt til kundens tilfredshed.
    • Har deltaget i forskellige førsalgsaktiviteter, proofs-of-concept og omfangsdefinition for en række projekter inden for sport og underholdning, herunder basketball, ridning og surfing.
  • Senior Data Scientist

    AGT International (Darmstadt, Germany) - 6 flere år 11 måneder

    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.

    Teknologier:

    • Teknologier:
    • Data Science
    • NumPy NumPy
    • XGBoost XGBoost
    • PyCharm PyCharm
    • Scikit-learn Scikit-learn
    • Matplotlib Matplotlib
    • Data Analytics
    • Machine Learning Machine Learning
    • Plotly Plotly
  • Seniorforsker

    AGT International, Germany - 2 flere år 11 måneder

    • Har bygget prototyper og produktionskode til forskellige applikationer i Industry 4.0, herunder prædiktiv vedligeholdelse til tunge maskiner, estimering af maskintilstand og registrering af uregelmæssigheder.
    • Bidrog til et system til overvågning af stabilitet for diger med sensorer på stedet. Analysearbejdet omfattede fejlprognose, tendensanalyse, modellering og simulering af komplekse miljøsystemer.
  • Senior Researcher

    AGT International (Darmstadt, Germany) - 2 flere år 11 måneder

    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.

    Teknologier:

    • Teknologier:
    • 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 flere år 11 måneder

    • 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

    Teknologier:

    • Teknologier:
    • Matlab Matlab

Uddannelse

  • Doctor Of PhilosophyHigh Energy Physics

    Vrije Universiteit Brussel · 1995 - 2001

  • MSc.Fysik

    Vrije Universiteit Brussel · 1992 - 1994

  • BSc.Fysik; elementær partikelfysik; astronomi

    Bruxelles Universitet · 1990 - 1992

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