J. Esteban Gamez, François Modave, Olga Kosheleva. Selecting the most representative sample is NP-hard: Need for expert (fuzzy) knowledge. In FUZZ-IEEE 2008, IEEE International Conference on Fuzzy Systems, Hong Kong, China, 1-6 June, 2008, Proceedings. pages 1069-1074, IEEE, 2008. [doi]
Abstract is missing.