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Developing a scoring function for NMR structure-based assignments using machine learning

Çalpur, Mehmet Çağrı and Erdoğan, Hakan and Çatay, Bülent and Donald, Bruce R. and Apaydın, Mehmet Serkan (2010) Developing a scoring function for NMR structure-based assignments using machine learning. In: 25th International Symposium on Computer and Information Sciences, London, UK

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Official URL: http://dx.doi.org/10.1007/978-90-481-9794-1_17

Abstract

Determining the assignment of signals received from the ex- periments (peaks) to speci_c nuclei of the target molecule in Nuclear Magnetic Resonance (NMR1) spectroscopy is an important challenge. Nuclear Vector Replacement (NVR) ([2, 3]) is a framework for structure- based assignments which combines multiple types of NMR data such as chemical shifts, residual dipolar couplings, and NOEs. NVR-BIP [1] is a tool which utilizes a scoring function with a binary integer programming (BIP) model to perform the assignments. In this paper, support vector machines (SVM) and boosting are employed to combine the terms in NVR-BIP's scoring function by viewing the assignment as a classi_ca- tion problem. The assignment accuracies obtained using this approach show that boosting improves the assignment accuracy of NVR-BIP on our data set when RDCs are not available and outperforms SVMs. With RDCs, boosting and SVMs o_er mixed results.

Item Type:Papers in Conference Proceedings
Subjects:UNSPECIFIED
ID Code:16329
Deposited By:Serkan Mehmet Apaydın
Deposited On:26 Jan 2011 10:49
Last Modified:30 Jan 2012 12:31

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