Data scientist & economist / Barcelona
Babs Olaniyi.
Models, experiments, and the decisions behind them.
I am a data scientist at Causal Foundry. My work combines statistics, machine learning, and experimentation across supply chains, healthcare, pricing, and recommendation systems.
I like working through the whole problem: what to measure, how to test it, and how to turn the result into something people can use.
Selected work
Full portfolioFood-crisis early warning from bilingual news
English and Arabic news turned into an auditable review queue for food-security analysts across five Mashriq countries.
Forecasting, procurement, and health financing
Demand models and procurement recommendations for national medical supply chains, alongside capitation methodology and analysis of facility behaviour.
Finding and preventing pricing leakage
Anomaly detection, elasticity, and uplift models across a €500M+ industrial product portfolio.
Product recommendations with multimodal models
Combining reviews, images, and temporal signals for next-item prediction across approximately 3 million interactions.
Papers & publications
4 papersData-Driven Approach to Capitation Reform in Rwanda
Claims-data-driven capitation design, calibration, monitoring, and prescribing-quality insights for Rwanda's Community-Based Health Insurance scheme.
Enhancing Product Recommendations with Multi-Modal LLMs
ISIR-eCom research on text and image signals for next-item prediction.
Power Samade distribution: properties and application to real lifetime data
Nigerian Journal of Science and Environment.
User Engagement in Mobile Health Applications
KDD work on probabilistic and survival-analysis approaches to meaningful engagement and churn in mobile health applications.
Writing
All writingFavourite reads
A few bookmarksIdeas I return to when thinking about experiments, recommendations, and building software.
- Nobody Gets Promoted for SimplicityTerrible Software / Engineering
- Bandits for Recommender SystemsEugene Yan / Experimentation
- Understanding Multimodal LLMsSebastian Raschka / Machine learning
- Data Distribution Shifts and MonitoringChip Huyen / ML systems
- Research Software Engineering in PythonResearch practice
- Multi-Armed Bandits and the Stitch Fix Experimentation PlatformStitch Fix / Experimentation