1-Wasserstein distances between districting plans
Project description
wasserplan is a library for computing 1-Wasserstein distances between GerryChain partitions.
Dependencies
wasserplan depends on GerryChain and CVXPY. We recommend installing these dependencies with Anaconda (see the official GerryChain installation instructions).
Using
We principally use this library to compute pairwise transport distances which we (approximately) project into 2D Euclidean space. A simple demonstration of this use case using Virginia congressional districts is available as a notebook (open in Colab).
Performance
By default, wasserplan uses the open-source, lightweight ECOS solver, which is included with CVXPY. However, this solver may exhibit performance issues for large graphs (thousands of nodes). Performance can be improved by using a commercial solver such as MOSEK.
License
This library is available under the MIT License.
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