Optimal uncertainty quantification for legacy data observations of Lipschitz functions T.J. Sullivan, M. McKerns, D. Meyer, F. Theil, H. Owhadi and M. Ortiz ESAIM: M2AN, 47 6 (2013) 1657-1689 Published online: 30 August 2013 DOI: 10.1051/m2an/2013083