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Protein Folding: Generalized-Ensemble Algorithms

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Encyclopedia of Optimization
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“Protein Folding: Generalized-Ensemble Algorithms” was submitted to the editors in February 1999 as a contribution for the “Encyclopedia of Optimization.” While the article has remained useful as a short and concise introduction, the remarkable success over the last 8 years in the forming and application of generalized-ensemble techniques to optimization problems warrants some comments. New generalized-ensemble algorithms have been developed, and the simulation of small proteins (of order \( { \approx 50 } \) residues) has become feasible.

One example for the recent algorithmic developments is energy landscape paving (ELP) [5]. Like all successful stochastic optimization techniques, it aims at avoiding entrapment in local minima and to continue the search for further solutions. For this purpose, one performs in ELP low-temperature Monte Carlo simulations with an effective energy:

$$ w(\tilde{E}) = e^{-\tilde{E}/k_BT} \quad \mathrm{with}\quad \tilde{E} = E + f(H(q,t))\:. $$
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References

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© 2008 Springer-Verlag

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Hansmann, U.H.E. (2008). Protein Folding: Generalized-Ensemble Algorithms . In: Floudas, C., Pardalos, P. (eds) Encyclopedia of Optimization. Springer, Boston, MA. https://doi.org/10.1007/978-0-387-74759-0_529

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