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Prediction of retention times for a large set of pesticides based on improved gene expression programming

Published: 12 July 2008 Publication History

Abstract

The purpose of the paper is to present a novel way to building Quantitative structure-retention relationship (QSRR) models. Studies was reported for predicting the retention times (RTs) of 110 pesticides which were detected by gas chromatography (GC) with mass selective detector (MSD). Chemical descriptors were calculated from the molecular structure of pesticides and the QSRR models of RTs with descriptors was built using the heuristic method (HM) and Improved Gene Expression Programming (IGEP), respectively. The obtained linear model of HM had a correlation coefficient R2 = 0.913, with a root mean square error (RMS) S2 of 0.0387 for the training set, while R2 =0.907, and RMS =0.0408 for the test set. The nonlinear model by IGEP gave better results: for the training set R2 = 0.971, S2 = 0.0176 and for the test set R2 =0.951, S2 =0.0267. The prediction results from nonlinear model are in agreement with the experimental values The QSRR model also reveals that the gas chromatographic RTs are associated with physicochemical property of pesticides.

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  • (2010)Adaptive representations for improving evolvability, parameter control, and parallelization of gene expression programmingApplied Computational Intelligence and Soft Computing10.1155/2010/4090452010(1-19)Online publication date: 1-Jan-2010

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  1. Prediction of retention times for a large set of pesticides based on improved gene expression programming

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      cover image ACM Conferences
      GECCO '08: Proceedings of the 10th annual conference on Genetic and evolutionary computation
      July 2008
      1814 pages
      ISBN:9781605581309
      DOI:10.1145/1389095
      • Conference Chair:
      • Conor Ryan,
      • Editor:
      • Maarten Keijzer
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      Published: 12 July 2008

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      Author Tags

      1. heuristic method
      2. improved gene expression programming
      3. quantitative structure-retention relationship
      4. retention times

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      • (2010)Adaptive representations for improving evolvability, parameter control, and parallelization of gene expression programmingApplied Computational Intelligence and Soft Computing10.1155/2010/4090452010(1-19)Online publication date: 1-Jan-2010

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