... MEAN-SQUARE DEVIATION BY THE METHOD OF SHAPING NETWORKS Coll: aquot;Cybernetics and Diagnosisaquot;, No. 5. aquot;Zinatneaquot;, Riga, 1972, 167-173 ( Russian) 1 E71 Biswas K.K. and Mahalanabis A.K. OPTIMAL SMOOTHING FOR CONTINUOUS ... 4, 572-574 (English) 1 E72 Mosca E. UDC 62-501.7 ON A CLASS OF ILL-POSED ESTIMATION PROBLEMS AND A ... Conditions of existence and convergence are given for the solution, and a formula is derived for estimating the error.