https://lucafiaschi.com/blog/ Insights on AI strategy, Bayesian methods, data science leadership, and GenAI from Luca Fiaschi. en-us https://lucafiaschi.com/blog/posts/state-of-agentic-data-science/ https://lucafiaschi.com/blog/posts/state-of-agentic-data-science/ A panel with Gaël Varoquaux, Shipra Arora, and Hugo Bowne-Anderson on verification, statistical judgment, and data products that business users can question and explore. Fri, 02 Oct 2026 00:00:00 GMT https://lucafiaschi.com/blog/posts/measuring-brand-equity/ https://lucafiaschi.com/blog/posts/measuring-brand-equity/ An opinionated playbook for data science leaders: connect brand tracking, Bayesian MMM, experiments, and VARX to commercial decisions. Tue, 15 Sep 2026 00:00:00 GMT https://lucafiaschi.com/blog/posts/amortized-bayesian-inference-mmm/ https://lucafiaschi.com/blog/posts/amortized-bayesian-inference-mmm/ Our BayesFlow webinar with Stefan Radev, explained through a marketing mix model: how amortized inference works, when it pays off, and how to validate it. Fri, 11 Sep 2026 00:00:00 GMT https://lucafiaschi.com/blog/posts/daimon-company-operating-system/ https://lucafiaschi.com/blog/posts/daimon-company-operating-system/ What changed when an AI agent moved out of private tabs and into the shared conversations where PyMC Labs actually works. Sun, 09 Aug 2026 00:00:00 GMT https://lucafiaschi.com/blog/posts/25-most-asked-mmm-questions/ https://lucafiaschi.com/blog/posts/25-most-asked-mmm-questions/ Practical answers for marketing leaders and data scientists on building, validating, interpreting, and acting on Bayesian marketing mix models. Tue, 04 Aug 2026 00:00:00 GMT https://lucafiaschi.com/blog/posts/climate-change-berlin-trip/ https://lucafiaschi.com/blog/posts/climate-change-berlin-trip/ A Bayesian detour through 66 years of rain data. The model couldn't beat the naive baseline, and proved that nothing can. The trend coefficient was the real payoff. Fri, 03 Jul 2026 00:00:00 GMT https://lucafiaschi.com/blog/posts/ferrari-luce-synthetic-consumers/ https://lucafiaschi.com/blog/posts/ferrari-luce-synthetic-consumers/ I ran 850 synthetic interviews to test Ferrari's electric Luce, showing how AI panels can speed concept, campaign, and website research. Tue, 16 Jun 2026 00:00:00 GMT https://lucafiaschi.com/blog/posts/agentic-mmm-measure-up/ https://lucafiaschi.com/blog/posts/agentic-mmm-measure-up/ Luca Fiaschi joins the Measure Up podcast to discuss agentic marketing mix models, reliable skills and guardrails, and the changing role of data scientists. Wed, 03 Jun 2026 00:00:00 GMT https://lucafiaschi.com/blog/posts/ask-your-mmm-anything/ https://lucafiaschi.com/blog/posts/ask-your-mmm-anything/ How Decision Lens lets stakeholders question marketing mix models directly, the three problems it solves, and the hard parts that remain. Mon, 11 May 2026 00:00:00 GMT https://lucafiaschi.com/blog/posts/mmm-priors-sensitivity/ https://lucafiaschi.com/blog/posts/mmm-priors-sensitivity/ A sensitivity analysis across 14 prior configurations reveals which Bayesian MMM priors are inert, which remain influential, and where ROAS error persists. Sun, 10 May 2026 00:00:00 GMT https://lucafiaschi.com/blog/posts/talking-to-bayesian-models/ https://lucafiaschi.com/blog/posts/talking-to-bayesian-models/ A working agent on top of a PyMC-Marketing model shows how stakeholders can question Bayesian MMMs in plain English without routing requests through a data scientist. Tue, 05 May 2026 00:00:00 GMT https://lucafiaschi.com/blog/posts/intent-taste-masters-data-ai/ https://lucafiaschi.com/blog/posts/intent-taste-masters-data-ai/ Luca Fiaschi joins Rocky Khan on Masters of Data, BI & AI to discuss pricing, the shift from software to AI, and why human intent and taste still matter. Tue, 31 Mar 2026 00:00:00 GMT https://lucafiaschi.com/blog/posts/synthetic-buyers/ https://lucafiaschi.com/blog/posts/synthetic-buyers/ A summary of my SAMI talk on synthetic consumers: using LLM-simulated buyer panels to pre-screen products, creatives, and messaging before spending real money. Wed, 25 Mar 2026 00:00:00 GMT https://lucafiaschi.com/blog/posts/data-ai-teams-benchmark-2026/ https://lucafiaschi.com/blog/posts/data-ai-teams-benchmark-2026/ I analyzed LinkedIn data on 213 tech companies to benchmark data and AI team composition. Role mix matters more than team size. Sat, 14 Mar 2026 00:00:00 GMT https://lucafiaschi.com/blog/posts/diverse-ideas-experiments/ https://lucafiaschi.com/blog/posts/diverse-ideas-experiments/ Experiments across 1 to 22 AI agents show why scaling agent diversity can matter more than better prompts for generating varied ideas. Sat, 14 Mar 2026 00:00:00 GMT https://lucafiaschi.com/blog/posts/bayesian-autoresearcher/ https://lucafiaschi.com/blog/posts/bayesian-autoresearcher/ Adapting Karpathy's autoresearch to Bayesian causal modeling, where the treatment effect has no ground truth and the agent must optimize a proxy. Wed, 11 Mar 2026 00:00:00 GMT https://lucafiaschi.com/blog/posts/llm-personality-survey/ https://lucafiaschi.com/blog/posts/llm-personality-survey/ A Big Five survey across 24 LLMs finds distinct behavioral fingerprints by model family—and shows why the statistical patterns need careful interpretation. Mon, 23 Feb 2026 00:00:00 GMT https://lucafiaschi.com/blog/posts/skills-registry-landscape/ https://lucafiaschi.com/blog/posts/skills-registry-landscape/ The AI agent skills ecosystem grew explosively. Security scanning followed. But nobody is checking whether skills actually work. That's the gap. Sun, 22 Feb 2026 00:00:00 GMT https://lucafiaschi.com/blog/posts/bayesian-hyperparameter-tuning-mmm/ https://lucafiaschi.com/blog/posts/bayesian-hyperparameter-tuning-mmm/ Combining Optuna's Bayesian optimization with PyMC-Marketing and CRPS to systematically tune Media Mix Model hyperparameters, instead of guessing. Sat, 20 Dec 2025 00:00:00 GMT https://lucafiaschi.com/blog/posts/bayesian-thinking-for-business/ https://lucafiaschi.com/blog/posts/bayesian-thinking-for-business/ Why traditional statistical methods often fail in business contexts, and how Bayesian approaches can help you make better decisions under uncertainty. Wed, 12 Nov 2025 00:00:00 GMT https://lucafiaschi.com/blog/posts/agentic-systems-bayesian-mmm/ https://lucafiaschi.com/blog/posts/agentic-systems-bayesian-mmm/ How two production systems use agentic AI to move Bayesian MMM and consumer testing from manual analysis toward collaborative decision-making. Sun, 01 Jun 2025 00:00:00 GMT