Washington State University: Open source tool can help identify gerrymandering in voting maps

Washington State University: Open source tool can help identify gerrymandering in voting maps. “In an article in the Harvard Data Science Review, the researchers describe the improved mathematical methodology of an open source tool called GerryChain. The tool can help observers detect gerrymandering in a voting district plan by creating a pool, or ensemble, of alternate maps that also meet legal voting criteria. This map ensemble can show if the proposed plan is an extreme outlier—one that is very unusual from the norm of plans generated without bias, and therefore, likely to be drawn with partisan goals in mind.”

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