{PrefLib}: A Library for Preferences

Kidney Exchange

Kidney failure is a life-threatening health issue that affects hundreds of thousands of people worldwide. In the US alone, the waitlist for a kidney transplant has over 100,000 patients. This list is growing: demand far outstrips supply.This codebase includes: structural elements of kidney exchange like "pools", "hospitals", and "pairs", a couple of kidney exchange graph generators, a couple of kidney exchange solvers (max weight, failure-aware, fairness-aware, individually rational), and a dynamic kidney exchange simulator.

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What is kidney exchange?

Kidney failure is a life-threatening health issue that affects hundreds of thousands of people worldwide. In the US alone, the waitlist for a kidney transplant has over 100,000 patients. This list is growing: demand far outstrips supply.

A recent innovation, kidney exchange, allows patients to bring an (incompatible) donor to a large pool where they can swap donors with other patients. As of 2012–2013, roughly 10% of US kidney transplants occurred through a variety of kidney exchanges. Outside of the US, many countries (the UK, the Netherlands, Portugal, Israel, ...) are fielding exchanges.

What is this code?

This codebase includes: structural elements of kidney exchange like "pools", "hospitals", and "pairs", a couple of kidney exchange graph generators, a couple of kidney exchange solvers (max weight, failure-aware, fairness-aware, individually rational), and a dynamic kidney exchange simulator.

If you use this codebase, please cite one of our recent papers like:

**NOTE:** This is _not_ the code used in the UNOS Kidney Paired Donation Pilot Program (KPDPP). The solvers here are meant to be accessible research code for the community and do not use branch-and-price, hopefully resulting in greater ease of use (at the cost of scalability). Forks and pull requests welcome!

External Dependencies

To use any of the solvers that inherit from CPLEXSolver, you will need to add cplex.jar to lib/. This will allow compilation; to run, you'll also need a VM argument like:

-Djava.library.path=/path/to/CPLEX_Studio/cplex/bin/your-architecture/

IBM offers a free academic license for CPLEX as well as a 90-day free trial available on their website.

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