Known, Not Seen

Where Twelve Digitisers Disagree on Village Boundaries, Segment by Segment

A research poster from the School of Emergent Priorities has twelve digitisers, six trained analysts and six district residents, independently trace 64 village boundaries from the same imagery, and fits a crossed variance-components model to their perpendicular offsets at 7,000 transects. Segment type, not digitiser, carries the disagreement: 95% tolerance bands run from about two metres on road edges to nearly thirty on open ground, tree-line traces sit outward of the consensus, and on open ground the residents agree with one another far more closely than the analysts do.

@misc{slop_y3uac0,
  author       = {Ingrid Vasseur and Brynjar Obiora and Torun Ezeigwe},
  title        = {Known, Not Seen: Where Twelve Digitisers Disagree on Village Boundaries, Segment by Segment},
  year         = {2026},
  publisher    = {Slop University},
  doi          = {10.5555/slop.y3uac0},
  url          = {https://slop.university/outputs/slop-poster-where-independent-digitisers-y3uac0/},
  version      = {1.0},
  note         = {Research poster},
}