Abstract
In order to characterize molecular structures we introduce configurational fingerprint vectors which are counterparts of quantities used experimentally to identify structures. The Euclidean distance between the configurational fingerprint vectors satisfies the properties of a metric and can therefore safely be used to measure dissimilarities between configurations in the high dimensional configuration space. In particular we show that these metrics are a perfect and computationally cheap replacement for the root-mean-square distance (RMSD) when one has to decide whether two noise contaminated configurations are identical or not. We introduce a Monte Carlo approach to obtain the global minimum of the RMSD between configurations, which is obtained from a global minimization over all translations, rotations, and permutations of atomic indices.
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Dates
Type | When |
---|---|
Created | 11 years, 9 months ago (Nov. 14, 2013, 6:45 p.m.) |
Deposited | 2 years, 1 month ago (July 1, 2023, 11:44 p.m.) |
Indexed | 1 day, 18 hours ago (Aug. 27, 2025, 11:55 a.m.) |
Issued | 11 years, 9 months ago (Nov. 14, 2013) |
Published | 11 years, 9 months ago (Nov. 14, 2013) |
Published Online | 11 years, 9 months ago (Nov. 14, 2013) |
Published Print | 11 years, 9 months ago (Nov. 14, 2013) |
@article{Sadeghi_2013, title={Metrics for measuring distances in configuration spaces}, volume={139}, ISSN={1089-7690}, url={http://dx.doi.org/10.1063/1.4828704}, DOI={10.1063/1.4828704}, number={18}, journal={The Journal of Chemical Physics}, publisher={AIP Publishing}, author={Sadeghi, Ali and Ghasemi, S. Alireza and Schaefer, Bastian and Mohr, Stephan and Lill, Markus A. and Goedecker, Stefan}, year={2013}, month=nov }