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News

HiMCM Infeasible Model: A Constraint-Relaxation Order for Day 6

An infeasible HiMCM model is not a reason to delete constraints. Use this Day 6 order: diagnose data and units, preserve hard limits, relax one soft target, and record the…

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HiMCM 2026 Contest Week: The Final Checklist Before November 4

The window opens 3:00 pm EST on November 4 and closes 8:00 pm EST on November 17, with submission due…

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HiMCM Figure Choice: Matching the Chart to Your Model’s Decision

HiMCM figure choice is a paper-presentation decision, not an official chart-type rule. This guide gives a decision-first workflow for matching…

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HiMCM Practice Archetypes: Using the Prior Problem List as a Training Ladder

The short answer for a HiMCM team training in the days before 4 November 2026: do not try to solve…

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HiMCM Teammate Compatibility: A Four-Hour Drill Before November 4

Your HiMCM roster is set, but will it survive the 14-day window? Run this four-hour rehearsal before the November 4…

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HiMCM Reproducibility: How to Let a Teammate Rebuild Your Results

Stop 'it works on my machine' errors. Learn how to isolate data, lock random seeds, and create clear entry points…

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HiMCM Model Family Choice: Optimization, Simulation, Ranking or Network?

Teams often force every HiMCM problem into a single modelling template. This guide helps you choose the right model family—optimization,…

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HiMCM Assumptions: Justify One Simplifying Choice Before You Model

Teams often list HiMCM assumptions as throwaway lines. Learn how to trace one simplifying choice from problem statement to model…

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HiMCM Summary Sheet: Present the Recommendation Before the Technical Detail

The HiMCM summary sheet sits on Page 1 of your 25-page submission envelope. Learn how to lead with your recommendation…

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HiMCM Model Validation: Test Predictions on Information You Did Not Fit

A concrete guide to out-of-sample validation for HiMCM teams: why testing on unfitted data matters, how to do it with…

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