Which mathematical optimization technique did Walmart implement that reduced its stockout rates by 30% while simultaneously decreasing inventory costs by 15%?

Retail operations increasingly rely on advanced mathematical models to optimize various aspects of their business. From inventory management to staff scheduling, mathematical algorithms drive efficiency and profitability. This poll tests your knowledge about a specific mathematical technique that revolutionized how major retailers handle their complex operational challenges.

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Monte Carlo simulation with Bayesian inference for demand forecasting
Mixed-integer linear programming for multi-echelon inventory optimization
Reinforcement learning algorithms for dynamic pricing strategies
Gradient boosting decision trees for customer segmentation and inventory allocation