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→Google Meridian Tutorial: Bayesian Marketing Mix Modeling for ROI
This tutorial walks through building a Bayesian marketing mix model with Google's open-source Meridian. It covers installation, GPU check, loading geo-level marketing data, mapping columns to Meridian's schema, setting interpretable ROI priors, and fitting via NUTS sampling. After training, you can examine channel contribution, ROI, marginal ROI, adstock, saturation curves, and use the Analyzer API for custom posterior metrics. The workflow ends with fixed and flexible budget optimization, shareable HTML reports, and model saving. The post doesn't specify dataset size or training time, but the pipeline is end-to-end from data to decision.
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