01460nas|a2200253 i 450000500170000000800410001703500150005810000170007324500450009026000520013530000100018749000460019750001150024350200830035852004010044165000300084265000110087270000330088370000490091670000450096571000530101081000780106385600650114120260818100438.0121095s1978    th uu m rtt  00|  a1eng d  a.b1025481x1 aRasul, Tahir10aError estimation for substitution models  aBangkok :bAsian Institute of Technology,c1978  a23 p.1 aSpecial studies project report ;vno. 124  aA special study submitted in partial fulfillment of the requirements. for the degree of Master of Engineering.  aSpecial Studies Project Report (M. Eng.) - Asian Institute of Technology, 1978  aThis work deals with the error estimation for technol ogical  substitution models. By the use of actual data, errors have been  calculated for the Floyd, Fisher-Pry, Blackman and Generalized models. A relationship is found, as to the manner in which error varies due to changes in forecasting horizon. From the result, conclusions about  relative efficiency of the four models are also presented. 0aTechnological forecasting 0aErrors1 aSharif, M. N., eChairperson1 aTechapun  Raengkhum, eExamination Committee1 aTang, John C.S., eExamination Committee2 aThe Royal Danish Government, eScholarship Donor2 aAsian Institute of Technology.tSpecial studies project report ;vno. 124  3Full-Textuhttp://203.159.5.9/ait-thesis/detail.php?q=B22610