Luca
Luca Fiaschi is an accomplished tech executive and AI/ML expert with over 15 years of leadership experience in AI, data science, and analytics teams at hypergrowth technology companies. He currently serves as a partner at PyMC Labs, where he drives Gen AI solutions and Bayesian consultancy for enterprise clients. Previously, he led as Chief Data & AI Officer at Mistplay, and held executive roles at HelloFresh, Stitch Fix, Rocket Internet, and Redmart/Alibaba, delivering scalable AI-driven products and revenue growth through advanced personalization and experimentation platforms.
Session
Your Marketing Mix Model is only as good as the library you build it on. But how do you choose between PyMC-Marketing and Google Meridian when the feature lists look so similar? You need hard evidence, not marketing claims. Which library is actually faster on multi-geo data? Do their different statistical approaches (splines vs. Fourier series) lead to different budget decisions?
This talk delivers that evidence. We present a rigorous, open-source benchmark that stress-tests both libraries on the metrics that matter in production. Using a synthetic dataset that replicates real-world ad spend patterns, we measure:
- Speed: Effective sample size per second (ESS/s) across different data scales.
- Accuracy: How well each model recovers both sales figures and true channel contributions.
- Reliability: A deep dive into convergence diagnostics and residual analysis.
- Resources: The real memory cost of fitting these models.
You'll walk away from this session with a clear, data-driven verdict, ready to choose the right tool and defend that choice to your team.