Olivier Caelen

Project Leader Data Innovation, PhD

I specialize in machine learning, helping companies unlock the potential of their data to drive innovation. At Sirris, I focus on applying advanced machine learning techniques to solve complex problems, with an emphasis on anomaly detection, image processing, and signal disaggregation. Whether you're facing a challenging data problem or exploring innovative solutions, I'm ready to collaborate and find actionable ways to create value for your business.

Expertise

  • Machine learning and artificial intelligence
  •  Fraud detection and anomaly detection
  • Images and signal processing
  • Predictive analytics for business strategy

Work experience

I started my career with over a decade of experience in data science and machine learning, initially at Worldline, where I focused on developing credit card fraud detection systems using machine learning techniques. I later worked at Orange Belgium as Lead Data Scientist, managing projects such as churn detection and optimizing customer engagement strategies. At Levi’s Europe, I led data science initiatives to enhance supply chain efficiency. Now at Sirris, I continue to drive machine learning research while collaborating with businesses to solve their most pressing data challenges.

Studies

  • Master’s in computer science -  ULB (2004)
  • PhD in machine learning - ULB  (2009)
  • Master’s in statistics  - UCLouvain (2018)

Professional motto

“I believe in evidence, not faith—unless we're talking Bayesian updates.”

Fun fact

Outside of my professional life at Sirris, I love sharing my knowledge through teaching. You can find me at ULB and ECAM giving courses on machine learning and deep learning. I'm co-author of more than 45 peer-reviewed scientific papers and co-author of the book "Developing Apps with GPT-4 and ChatGPT" published by O'Reilly Media.
 

A question, contact Olivier Caelen