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Meent & Tomaszewski - Fusing Machine Learning and Mixed Integer Linear Programming
Learn how to combine machine learning with mixed integer linear programming to optimize marketing spend, while accounting for real-world constraints and uncertainty.
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Machine learning models combined with mixed integer linear programming help optimize marketing spend allocations and promotional campaigns
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Models need regular monitoring and retraining to account for shifts in market conditions, competitor behavior, and customer responsiveness
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Key challenges include:
- Limited historical data makes effects hard to measure
- Correlations between variables can cause instability
- Model uncertainty needs to be considered in optimization
- Changes in external factors (weather, competition, etc.) affect predictions
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Best practices for implementation:
- Validate models before deploying to optimization
- Use randomized experiments to measure true causal effects
- Consider business constraints beyond mathematical optimality
- Monitor key performance metrics and model drift
- Maintain awareness of model limitations and uncertainty
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Response curves help identify “sweet spots” for marketing investments and identify when diminishing returns set in
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Regularization and monotonicity constraints can help produce more stable and interpretable models
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Combining human knowledge with model outputs leads to better decision-making than pure optimization
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Important to design robust solutions that work well across different scenarios rather than solely mathematically optimal ones
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Regular model updates and monitoring help adapt to changing market conditions and maintain effectiveness
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Critical to validate that model recommendations make business sense before implementation