Open Access
OPTIMAL SELECTION ON STARTING REFLECTIONS IN DIRECT METHODS (II)
Author(s) -
QiTai Zheng,
Gu Yuan-Xin,
Zheng Chao-De,
J. Qian
Publication year - 1981
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.30.610
Subject(s) - selection (genetic algorithm) , computer science , set (abstract data type) , figure of merit , mathematical optimization , algorithm , mathematics , artificial intelligence , computer vision , programming language
During the determination of three unknown structures, the method of optimal selection on the distribution of index among the starting reflections was incorporated with the symbolic addition and the MULTAN procedures respectively. It is proved that the optimal selection method provides a better starting set which in the case of MULTAN leads to increase of the figure of merit corresponding to the correct solution. An example is given that structure which had failed to be solved by MULTAN 78 can be solved successfully by incorporating with the optimal selection method.