Computational Stochastic Optimization and Learning

I have launched a new website!  I will be shutting down the CASTLE website soon.  Please go to  https://tinyurl.com/SDAwebsite/ for a new experience exploring the world of sequential decision analytics.

Warren Powell
Professor Emeritus, Princeton University


CASTLE works to advance the development of modern analytics for solving a wide range of applications that involve decisions under uncertainty.

Some recent books:

I have created an educational resource page for sequential decision analytics (click here), which contains:

  •  Introduction to the field of sequential decision problems
  • Introduction to Optimal Learning
  • Some video introductions
  • Downloadable books
  • Courses and teaching materials
  • Educational webpages about sequential decision analytics
  • LinkedIn posts on sequential decision analytics

Laboratories and Areas of Focus

Surrounding the core activities in methodology are laboratories focusing on major areas of application.

  • PENSA – The Princeton Laboratory for Energy Systems Analysis – PENSA addresses a variety of stochastic optimization problems in energy systems, including energy storage, stochastic unit commitment, bidding, and pricing.  We document our work on energy storage.
  • Transportation and logistics Laboratory – Our work in transportation and logistics dates to 1981, and spans stochastic fleet management in trucking, rail and air, real-time dispatching, routing and scheduling, and spare parts management, to name a few. Our work has been adopted by a broad cross section of the industry.
  • Optimal learning – This research addresses the challenges of collecting information, when information (observations, simulations, laboratory and field experiments) are expensive.
  • Health sciences – Projects in health have included drug discovery, drug delivery, blood management, dosage decisions, personal health, and health policy.

I hope you find the material interesting, and perhaps useful. If you have any questions, please contact me.

Warren Powell