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. Author manuscript; available in PMC: 2009 Sep 15.
Published in final edited form as: IEEE Trans Automat Contr. 2007 Apr 1;52(4):664–676. doi: 10.1109/TAC.2007.894518

Fig. 1.

Fig. 1

(Left) Protein docking funnels and the operation of the docking method SmoothDock [8]. (Right) A funnel-like shaped function and a quadratic function underestimating the surface spanned by the local minima.