Princeton Optimization

Tidy Data for Optimization

Over a year ago, I discovered a wonderful article by Hadley Wickham introducing the concept of “Tidy Data.” Here is a complete reference: Hadley Wickham, “Tidy Data”, Journal of Statistical Software, Volume 59(10), August 2014. Wickham, a major contributor to the open source R package for statistical analysis, was addressing the needs of statisticians in […]

Optimizing Complex Machine Scheduling at QuadGraphics

QuadGraphics, www.qg.com, an NYSE company, is the second largest print and integrated media solutions provider in North America. The firm’s leaders have consistently emphasized improving performance through innovation and, as evidence of that commitment, they invited us several years ago to look for optimization opportunities at their organization. First, they showed us the printing presses, […]