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Authors: Monther Alhamdoosh ; Castrense Savojardo ; Piero Fariselli and Rita Casadio

Affiliation: University of Bologna, Italy

Keyword(s): Disulfide connectivity, Disulfide bonds, Extreme learning machine, Backpropagation, ELM outperforms BP, Multiple feature vectors, Disulfide proteins, Disulfide bridge prediction, K-mean clustering with ELM, RBF networks with ELM, SLFN with ELM.

Related Ontology Subjects/Areas/Topics: Bioinformatics ; Biomedical Engineering ; Structural Bioinformatics ; Structure Prediction

Abstract: Our paper emphasizes the relevance of Extreme Learning Machine (ELM) in Bioinformatics applications by addressing the problem of predicting the disulfide connectivity from protein sequences. We test different activation functions of the hidden neurons and we show that for the task at hand the Radial Basis Functions are the best performing. We also show that the ELM approach performs better than the Back Propagation learning algorithm both in terms of generalization accuracy and running time. Moreover, we find that for the problem of the prediction of the disulfide connectivity it is possible to increase the predicting performance by initializing the Radial Basis Function kernels with a k-mean clustering algorithm. Finally, the ELM procedure is not only very fast but the final predicting networks can achieve an accuracy of 0.51 and 0.45, per-bonds and per-pattern, respectively. Our ELM results are in line with the state of the art predictors addressing the same problem.

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Paper citation in several formats:
Alhamdoosh, M.; Savojardo, C.; Fariselli, P. and Casadio, R. (2011). DISULFIDE CONNECTIVITY PREDICTION WITH EXTREME LEARNING MACHINES. In Proceedings of the International Conference on Bioinformatics Models, Methods and Algorithms (BIOSTEC 2011) - BIOINFORMATICS; ISBN 978-989-8425-36-2; ISSN 2184-4305, SciTePress, pages 5-14. DOI: 10.5220/0003125600050014

@conference{bioinformatics11,
author={Monther Alhamdoosh. and Castrense Savojardo. and Piero Fariselli. and Rita Casadio.},
title={DISULFIDE CONNECTIVITY PREDICTION WITH EXTREME LEARNING MACHINES},
booktitle={Proceedings of the International Conference on Bioinformatics Models, Methods and Algorithms (BIOSTEC 2011) - BIOINFORMATICS},
year={2011},
pages={5-14},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0003125600050014},
isbn={978-989-8425-36-2},
issn={2184-4305},
}

TY - CONF

JO - Proceedings of the International Conference on Bioinformatics Models, Methods and Algorithms (BIOSTEC 2011) - BIOINFORMATICS
TI - DISULFIDE CONNECTIVITY PREDICTION WITH EXTREME LEARNING MACHINES
SN - 978-989-8425-36-2
IS - 2184-4305
AU - Alhamdoosh, M.
AU - Savojardo, C.
AU - Fariselli, P.
AU - Casadio, R.
PY - 2011
SP - 5
EP - 14
DO - 10.5220/0003125600050014
PB - SciTePress