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John D. Ruark

Publications -  4
Citations -  292

John D. Ruark is an academic researcher. The author has contributed to research in topics: Supply chain & Inventory optimization. The author has an hindex of 4, co-authored 4 publications receiving 276 citations.

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System and method for determining the optimum configuration strategy for systems with multiple decision options

TL;DR: In this paper, the authors presented an apparatus and method for optimizing total costs over the stages of a network of interconnected stages, where each data set corresponds to an option at each stage, each cost including a first cost and a second cost.
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Accelerating the Profitability of Hewlett-Packard's Supply Chains

TL;DR: A standard and common process for analysis coupled with advancement in inventory optimization techniques to invent a new and robust way to design supply-chain networks is being deployed across the entire company.
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Inventory Optimization at Procter & Gamble: Achieving Real Benefits Through User Adoption of Inventory Tools

TL;DR: Although case studies show the mathematics employed, of equal importance is the presentation of the planning process that facilitates inventory management and the decision tree that matches a business to the optimal inventory tool depending on the requirements of the business.
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Incorporating Stochastic Lead Times Into the Guaranteed Service Model of Safety Stock Optimization

TL;DR: This research extends the guaranteed service model of safety stock placement to allow random lead times and demonstrates the demonstration of real stochastic lead times in practice and discusses how this approach outperforms more traditional heuristics that either ignore lead-time variability or consider the maximum lead time at each stage.