Probing Polygons Minimally Is Hard

@article{Belleville1992ProbingPM,
  title={Probing Polygons Minimally Is Hard},
  author={Patrice Belleville and Thomas C. Shermer},
  journal={Comput. Geom.},
  year={1992},
  volume={2},
  pages={255-265}
}
Belleville, P. and T.C. Shermer, Probing polygons minimally is hard, Computational Geometry: Theory and Applications 2 (1993) 255-265. Let r be a set of convex unimodal polygons in fixed position and orientation. We prove that the problem of determining whether k finger probes are sufficient to distinguish among the polygons in f is NP-complete for two types of finger probes. This implies that the same results hold for most interesting classes of polygons on which finger probes can be used. 
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Probing polygons minimally is hard

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in: Proceedings of the Third Canadian Conference in Computational Geometry • 1991
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