Copyright © 2010 Youlin Shang et al. This is an open access article distributed under the
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This paper indicates that the filled function which appeared in one of the papers by Y. L. Shang et al. (2007) is also a tunneling function; that is, we prove that
under some general assumptions this function has the characters of both tunneling
function and filled function. A solution algorithm based on this T-F function is given
and numerical tests from test functions show that our T-F function method is very
effective in finding better minima.