Modeling the next generation sequencing sample processing pipeline for the purposes of classification

Background A key goal of systems biology and translational genomics is to utilize high-throughput measurements of cellular states to develop expression-based classifiers for discriminating among different phenotypes. Recent developments of Next Generation Sequencing (NGS) technologies can facilitate...
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Autor*in:	Ghaffari, Noushin [verfasserIn] Yousefi, Mohammadmahdi R Johnson, Charles D Ivanov, Ivan Dougherty, Edward R

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2013

Schlagwörter:	Next Generation Sequencing Linear Discriminant Analysis Next Generation Sequencing Technology True Error Next Generation Sequencing Data

Anmerkung:	© Ghaffari et al.; licensee BioMed Central Ltd. 2013

Übergeordnetes Werk:	Enthalten in: BMC bioinformatics - London : BioMed Central, 2000, 14(2013), 1 vom: 11. Okt.
Übergeordnetes Werk:	volume:14 ; year:2013 ; number:1 ; day:11 ; month:10

Links:	Volltext

DOI / URN:	10.1186/1471-2105-14-307

Katalog-ID:	SPR026885662

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520			\|a Background A key goal of systems biology and translational genomics is to utilize high-throughput measurements of cellular states to develop expression-based classifiers for discriminating among different phenotypes. Recent developments of Next Generation Sequencing (NGS) technologies can facilitate classifier design by providing expression measurements for tens of thousands of genes simultaneously via the abundance of their mRNA transcripts. Because NGS technologies result in a nonlinear transformation of the actual expression distributions, their application can result in data that are less discriminative than would be the actual expression levels themselves, were they directly observable. Results Using state-of-the-art distributional modeling for the NGS processing pipeline, this paper studies how that pipeline, via the resulting nonlinear transformation, affects classification and feature selection. The effects of different factors are considered and NGS-based classification is compared to SAGE-based classification and classification directly on the raw expression data, which is represented by a very high-dimensional model previously developed for gene expression. As expected, the nonlinear transformation resulting from NGS processing diminishes classification accuracy; however, owing to a larger number of reads, NGS-based classification outperforms SAGE-based classification. Conclusions Having high numbers of reads can mitigate the degradation in classification performance resulting from the effects of NGS technologies. Hence, when performing a RNA-Seq analysis, using the highest possible coverage of the genome is recommended for the purposes of classification.
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allfields	10.1186/1471-2105-14-307 doi (DE-627)SPR026885662 (SPR)1471-2105-14-307-e DE-627 ger DE-627 rakwb eng Ghaffari, Noushin verfasserin aut Modeling the next generation sequencing sample processing pipeline for the purposes of classification 2013 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Ghaffari et al.; licensee BioMed Central Ltd. 2013 Background A key goal of systems biology and translational genomics is to utilize high-throughput measurements of cellular states to develop expression-based classifiers for discriminating among different phenotypes. Recent developments of Next Generation Sequencing (NGS) technologies can facilitate classifier design by providing expression measurements for tens of thousands of genes simultaneously via the abundance of their mRNA transcripts. Because NGS technologies result in a nonlinear transformation of the actual expression distributions, their application can result in data that are less discriminative than would be the actual expression levels themselves, were they directly observable. Results Using state-of-the-art distributional modeling for the NGS processing pipeline, this paper studies how that pipeline, via the resulting nonlinear transformation, affects classification and feature selection. The effects of different factors are considered and NGS-based classification is compared to SAGE-based classification and classification directly on the raw expression data, which is represented by a very high-dimensional model previously developed for gene expression. As expected, the nonlinear transformation resulting from NGS processing diminishes classification accuracy; however, owing to a larger number of reads, NGS-based classification outperforms SAGE-based classification. Conclusions Having high numbers of reads can mitigate the degradation in classification performance resulting from the effects of NGS technologies. Hence, when performing a RNA-Seq analysis, using the highest possible coverage of the genome is recommended for the purposes of classification. Next Generation Sequencing (dpeaa)DE-He213 Linear Discriminant Analysis (dpeaa)DE-He213 Next Generation Sequencing Technology (dpeaa)DE-He213 True Error (dpeaa)DE-He213 Next Generation Sequencing Data (dpeaa)DE-He213 Yousefi, Mohammadmahdi R aut Johnson, Charles D aut Ivanov, Ivan aut Dougherty, Edward R aut Enthalten in BMC bioinformatics London : BioMed Central, 2000 14(2013), 1 vom: 11. Okt. (DE-627)326644814 (DE-600)2041484-5 1471-2105 nnns volume:14 year:2013 number:1 day:11 month:10 https://dx.doi.org/10.1186/1471-2105-14-307 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2031 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2190 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 14 2013 1 11 10
spelling	10.1186/1471-2105-14-307 doi (DE-627)SPR026885662 (SPR)1471-2105-14-307-e DE-627 ger DE-627 rakwb eng Ghaffari, Noushin verfasserin aut Modeling the next generation sequencing sample processing pipeline for the purposes of classification 2013 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Ghaffari et al.; licensee BioMed Central Ltd. 2013 Background A key goal of systems biology and translational genomics is to utilize high-throughput measurements of cellular states to develop expression-based classifiers for discriminating among different phenotypes. Recent developments of Next Generation Sequencing (NGS) technologies can facilitate classifier design by providing expression measurements for tens of thousands of genes simultaneously via the abundance of their mRNA transcripts. Because NGS technologies result in a nonlinear transformation of the actual expression distributions, their application can result in data that are less discriminative than would be the actual expression levels themselves, were they directly observable. Results Using state-of-the-art distributional modeling for the NGS processing pipeline, this paper studies how that pipeline, via the resulting nonlinear transformation, affects classification and feature selection. The effects of different factors are considered and NGS-based classification is compared to SAGE-based classification and classification directly on the raw expression data, which is represented by a very high-dimensional model previously developed for gene expression. As expected, the nonlinear transformation resulting from NGS processing diminishes classification accuracy; however, owing to a larger number of reads, NGS-based classification outperforms SAGE-based classification. Conclusions Having high numbers of reads can mitigate the degradation in classification performance resulting from the effects of NGS technologies. Hence, when performing a RNA-Seq analysis, using the highest possible coverage of the genome is recommended for the purposes of classification. Next Generation Sequencing (dpeaa)DE-He213 Linear Discriminant Analysis (dpeaa)DE-He213 Next Generation Sequencing Technology (dpeaa)DE-He213 True Error (dpeaa)DE-He213 Next Generation Sequencing Data (dpeaa)DE-He213 Yousefi, Mohammadmahdi R aut Johnson, Charles D aut Ivanov, Ivan aut Dougherty, Edward R aut Enthalten in BMC bioinformatics London : BioMed Central, 2000 14(2013), 1 vom: 11. Okt. (DE-627)326644814 (DE-600)2041484-5 1471-2105 nnns volume:14 year:2013 number:1 day:11 month:10 https://dx.doi.org/10.1186/1471-2105-14-307 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2031 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2190 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 14 2013 1 11 10
allfields_unstemmed	10.1186/1471-2105-14-307 doi (DE-627)SPR026885662 (SPR)1471-2105-14-307-e DE-627 ger DE-627 rakwb eng Ghaffari, Noushin verfasserin aut Modeling the next generation sequencing sample processing pipeline for the purposes of classification 2013 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Ghaffari et al.; licensee BioMed Central Ltd. 2013 Background A key goal of systems biology and translational genomics is to utilize high-throughput measurements of cellular states to develop expression-based classifiers for discriminating among different phenotypes. Recent developments of Next Generation Sequencing (NGS) technologies can facilitate classifier design by providing expression measurements for tens of thousands of genes simultaneously via the abundance of their mRNA transcripts. Because NGS technologies result in a nonlinear transformation of the actual expression distributions, their application can result in data that are less discriminative than would be the actual expression levels themselves, were they directly observable. Results Using state-of-the-art distributional modeling for the NGS processing pipeline, this paper studies how that pipeline, via the resulting nonlinear transformation, affects classification and feature selection. The effects of different factors are considered and NGS-based classification is compared to SAGE-based classification and classification directly on the raw expression data, which is represented by a very high-dimensional model previously developed for gene expression. As expected, the nonlinear transformation resulting from NGS processing diminishes classification accuracy; however, owing to a larger number of reads, NGS-based classification outperforms SAGE-based classification. Conclusions Having high numbers of reads can mitigate the degradation in classification performance resulting from the effects of NGS technologies. Hence, when performing a RNA-Seq analysis, using the highest possible coverage of the genome is recommended for the purposes of classification. Next Generation Sequencing (dpeaa)DE-He213 Linear Discriminant Analysis (dpeaa)DE-He213 Next Generation Sequencing Technology (dpeaa)DE-He213 True Error (dpeaa)DE-He213 Next Generation Sequencing Data (dpeaa)DE-He213 Yousefi, Mohammadmahdi R aut Johnson, Charles D aut Ivanov, Ivan aut Dougherty, Edward R aut Enthalten in BMC bioinformatics London : BioMed Central, 2000 14(2013), 1 vom: 11. Okt. (DE-627)326644814 (DE-600)2041484-5 1471-2105 nnns volume:14 year:2013 number:1 day:11 month:10 https://dx.doi.org/10.1186/1471-2105-14-307 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2031 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2190 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 14 2013 1 11 10
allfieldsGer	10.1186/1471-2105-14-307 doi (DE-627)SPR026885662 (SPR)1471-2105-14-307-e DE-627 ger DE-627 rakwb eng Ghaffari, Noushin verfasserin aut Modeling the next generation sequencing sample processing pipeline for the purposes of classification 2013 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Ghaffari et al.; licensee BioMed Central Ltd. 2013 Background A key goal of systems biology and translational genomics is to utilize high-throughput measurements of cellular states to develop expression-based classifiers for discriminating among different phenotypes. Recent developments of Next Generation Sequencing (NGS) technologies can facilitate classifier design by providing expression measurements for tens of thousands of genes simultaneously via the abundance of their mRNA transcripts. Because NGS technologies result in a nonlinear transformation of the actual expression distributions, their application can result in data that are less discriminative than would be the actual expression levels themselves, were they directly observable. Results Using state-of-the-art distributional modeling for the NGS processing pipeline, this paper studies how that pipeline, via the resulting nonlinear transformation, affects classification and feature selection. The effects of different factors are considered and NGS-based classification is compared to SAGE-based classification and classification directly on the raw expression data, which is represented by a very high-dimensional model previously developed for gene expression. As expected, the nonlinear transformation resulting from NGS processing diminishes classification accuracy; however, owing to a larger number of reads, NGS-based classification outperforms SAGE-based classification. Conclusions Having high numbers of reads can mitigate the degradation in classification performance resulting from the effects of NGS technologies. Hence, when performing a RNA-Seq analysis, using the highest possible coverage of the genome is recommended for the purposes of classification. Next Generation Sequencing (dpeaa)DE-He213 Linear Discriminant Analysis (dpeaa)DE-He213 Next Generation Sequencing Technology (dpeaa)DE-He213 True Error (dpeaa)DE-He213 Next Generation Sequencing Data (dpeaa)DE-He213 Yousefi, Mohammadmahdi R aut Johnson, Charles D aut Ivanov, Ivan aut Dougherty, Edward R aut Enthalten in BMC bioinformatics London : BioMed Central, 2000 14(2013), 1 vom: 11. Okt. (DE-627)326644814 (DE-600)2041484-5 1471-2105 nnns volume:14 year:2013 number:1 day:11 month:10 https://dx.doi.org/10.1186/1471-2105-14-307 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2031 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2190 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 14 2013 1 11 10
allfieldsSound	10.1186/1471-2105-14-307 doi (DE-627)SPR026885662 (SPR)1471-2105-14-307-e DE-627 ger DE-627 rakwb eng Ghaffari, Noushin verfasserin aut Modeling the next generation sequencing sample processing pipeline for the purposes of classification 2013 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Ghaffari et al.; licensee BioMed Central Ltd. 2013 Background A key goal of systems biology and translational genomics is to utilize high-throughput measurements of cellular states to develop expression-based classifiers for discriminating among different phenotypes. Recent developments of Next Generation Sequencing (NGS) technologies can facilitate classifier design by providing expression measurements for tens of thousands of genes simultaneously via the abundance of their mRNA transcripts. Because NGS technologies result in a nonlinear transformation of the actual expression distributions, their application can result in data that are less discriminative than would be the actual expression levels themselves, were they directly observable. Results Using state-of-the-art distributional modeling for the NGS processing pipeline, this paper studies how that pipeline, via the resulting nonlinear transformation, affects classification and feature selection. The effects of different factors are considered and NGS-based classification is compared to SAGE-based classification and classification directly on the raw expression data, which is represented by a very high-dimensional model previously developed for gene expression. As expected, the nonlinear transformation resulting from NGS processing diminishes classification accuracy; however, owing to a larger number of reads, NGS-based classification outperforms SAGE-based classification. Conclusions Having high numbers of reads can mitigate the degradation in classification performance resulting from the effects of NGS technologies. Hence, when performing a RNA-Seq analysis, using the highest possible coverage of the genome is recommended for the purposes of classification. Next Generation Sequencing (dpeaa)DE-He213 Linear Discriminant Analysis (dpeaa)DE-He213 Next Generation Sequencing Technology (dpeaa)DE-He213 True Error (dpeaa)DE-He213 Next Generation Sequencing Data (dpeaa)DE-He213 Yousefi, Mohammadmahdi R aut Johnson, Charles D aut Ivanov, Ivan aut Dougherty, Edward R aut Enthalten in BMC bioinformatics London : BioMed Central, 2000 14(2013), 1 vom: 11. Okt. (DE-627)326644814 (DE-600)2041484-5 1471-2105 nnns volume:14 year:2013 number:1 day:11 month:10 https://dx.doi.org/10.1186/1471-2105-14-307 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2031 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2190 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 14 2013 1 11 10
language	English
source	Enthalten in BMC bioinformatics 14(2013), 1 vom: 11. Okt. volume:14 year:2013 number:1 day:11 month:10
sourceStr	Enthalten in BMC bioinformatics 14(2013), 1 vom: 11. Okt. volume:14 year:2013 number:1 day:11 month:10
format_phy_str_mv	Article
institution	findex.gbv.de
topic_facet	Next Generation Sequencing Linear Discriminant Analysis Next Generation Sequencing Technology True Error Next Generation Sequencing Data
isfreeaccess_bool	true
container_title	BMC bioinformatics
authorswithroles_txt_mv	Ghaffari, Noushin @@aut@@ Yousefi, Mohammadmahdi R @@aut@@ Johnson, Charles D @@aut@@ Ivanov, Ivan @@aut@@ Dougherty, Edward R @@aut@@
publishDateDaySort_date	2013-10-11T00:00:00Z
hierarchy_top_id	326644814
id	SPR026885662
language_de	englisch
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author	Ghaffari, Noushin
spellingShingle	Ghaffari, Noushin misc Next Generation Sequencing misc Linear Discriminant Analysis misc Next Generation Sequencing Technology misc True Error misc Next Generation Sequencing Data Modeling the next generation sequencing sample processing pipeline for the purposes of classification
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topic_title	Modeling the next generation sequencing sample processing pipeline for the purposes of classification Next Generation Sequencing (dpeaa)DE-He213 Linear Discriminant Analysis (dpeaa)DE-He213 Next Generation Sequencing Technology (dpeaa)DE-He213 True Error (dpeaa)DE-He213 Next Generation Sequencing Data (dpeaa)DE-He213
topic	misc Next Generation Sequencing misc Linear Discriminant Analysis misc Next Generation Sequencing Technology misc True Error misc Next Generation Sequencing Data
topic_unstemmed	misc Next Generation Sequencing misc Linear Discriminant Analysis misc Next Generation Sequencing Technology misc True Error misc Next Generation Sequencing Data
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title	Modeling the next generation sequencing sample processing pipeline for the purposes of classification
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title_sort	modeling the next generation sequencing sample processing pipeline for the purposes of classification
title_auth	Modeling the next generation sequencing sample processing pipeline for the purposes of classification
abstract	Background A key goal of systems biology and translational genomics is to utilize high-throughput measurements of cellular states to develop expression-based classifiers for discriminating among different phenotypes. Recent developments of Next Generation Sequencing (NGS) technologies can facilitate classifier design by providing expression measurements for tens of thousands of genes simultaneously via the abundance of their mRNA transcripts. Because NGS technologies result in a nonlinear transformation of the actual expression distributions, their application can result in data that are less discriminative than would be the actual expression levels themselves, were they directly observable. Results Using state-of-the-art distributional modeling for the NGS processing pipeline, this paper studies how that pipeline, via the resulting nonlinear transformation, affects classification and feature selection. The effects of different factors are considered and NGS-based classification is compared to SAGE-based classification and classification directly on the raw expression data, which is represented by a very high-dimensional model previously developed for gene expression. As expected, the nonlinear transformation resulting from NGS processing diminishes classification accuracy; however, owing to a larger number of reads, NGS-based classification outperforms SAGE-based classification. Conclusions Having high numbers of reads can mitigate the degradation in classification performance resulting from the effects of NGS technologies. Hence, when performing a RNA-Seq analysis, using the highest possible coverage of the genome is recommended for the purposes of classification. © Ghaffari et al.; licensee BioMed Central Ltd. 2013
abstractGer	Background A key goal of systems biology and translational genomics is to utilize high-throughput measurements of cellular states to develop expression-based classifiers for discriminating among different phenotypes. Recent developments of Next Generation Sequencing (NGS) technologies can facilitate classifier design by providing expression measurements for tens of thousands of genes simultaneously via the abundance of their mRNA transcripts. Because NGS technologies result in a nonlinear transformation of the actual expression distributions, their application can result in data that are less discriminative than would be the actual expression levels themselves, were they directly observable. Results Using state-of-the-art distributional modeling for the NGS processing pipeline, this paper studies how that pipeline, via the resulting nonlinear transformation, affects classification and feature selection. The effects of different factors are considered and NGS-based classification is compared to SAGE-based classification and classification directly on the raw expression data, which is represented by a very high-dimensional model previously developed for gene expression. As expected, the nonlinear transformation resulting from NGS processing diminishes classification accuracy; however, owing to a larger number of reads, NGS-based classification outperforms SAGE-based classification. Conclusions Having high numbers of reads can mitigate the degradation in classification performance resulting from the effects of NGS technologies. Hence, when performing a RNA-Seq analysis, using the highest possible coverage of the genome is recommended for the purposes of classification. © Ghaffari et al.; licensee BioMed Central Ltd. 2013
abstract_unstemmed	Background A key goal of systems biology and translational genomics is to utilize high-throughput measurements of cellular states to develop expression-based classifiers for discriminating among different phenotypes. Recent developments of Next Generation Sequencing (NGS) technologies can facilitate classifier design by providing expression measurements for tens of thousands of genes simultaneously via the abundance of their mRNA transcripts. Because NGS technologies result in a nonlinear transformation of the actual expression distributions, their application can result in data that are less discriminative than would be the actual expression levels themselves, were they directly observable. Results Using state-of-the-art distributional modeling for the NGS processing pipeline, this paper studies how that pipeline, via the resulting nonlinear transformation, affects classification and feature selection. The effects of different factors are considered and NGS-based classification is compared to SAGE-based classification and classification directly on the raw expression data, which is represented by a very high-dimensional model previously developed for gene expression. As expected, the nonlinear transformation resulting from NGS processing diminishes classification accuracy; however, owing to a larger number of reads, NGS-based classification outperforms SAGE-based classification. Conclusions Having high numbers of reads can mitigate the degradation in classification performance resulting from the effects of NGS technologies. Hence, when performing a RNA-Seq analysis, using the highest possible coverage of the genome is recommended for the purposes of classification. © Ghaffari et al.; licensee BioMed Central Ltd. 2013
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title_short	Modeling the next generation sequencing sample processing pipeline for the purposes of classification
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Modeling the next generation sequencing sample processing pipeline for the purposes of classification

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