A pathway-based approach for analyzing microarray data using random forests
Although machine learning methods, such as random forests, have been developed to correlate survival outcomes with a set of genes, less study has assessed the abilities of these methods in incorporating pathway information for analyzing microarray data. In general, genes that are identified without...
| Main Authors: | , , , |
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| Format: | Conference or Workshop Item |
| Published: |
2011
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| _version_ | 1796858762035724288 |
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| author | Tan Ah Chik @ Mohamad, Mohd. Saberi Shi, Chin Hui Deris, Safaai Ibrahim, Zuwairie |
| author_facet | Tan Ah Chik @ Mohamad, Mohd. Saberi Shi, Chin Hui Deris, Safaai Ibrahim, Zuwairie |
| author_sort | Tan Ah Chik @ Mohamad, Mohd. Saberi |
| collection | ePrints |
| description | Although machine learning methods, such as random forests, have been developed to correlate survival outcomes with a set of genes, less study has assessed the abilities of these methods in incorporating pathway information for analyzing microarray data. In general, genes that are identified without incorporating biological knowledge are more difficult to interpret. Thus, the pathway-based survival analysis using machine learning methods represents a promising approach for generating new biological hypothesis from microarray studies. The two popular variants of random forests used in this research for survival data are random survival forests and bivariate node-splitting random survival forests. There are three types of datasets used for this research and each dataset with a three-level outcome. This research which compared the four splitting rules available in random survival forests to identify log-rank test is the most accurate in terms of prediction error. To evaluate the accuracy of pathway based survival approach, this research considered employing area under the receiver operating characteristic curve for censored data. The use of random survival forests for survival outcomes in analyzing microarray data allows researchers to obtain results that are more closely tied with the biological mechanism of diseases. |
| first_indexed | 2024-03-05T19:17:14Z |
| format | Conference or Workshop Item |
| id | utm.eprints-45496 |
| institution | Universiti Teknologi Malaysia - ePrints |
| last_indexed | 2024-03-05T19:17:14Z |
| publishDate | 2011 |
| record_format | dspace |
| spelling | utm.eprints-454962017-08-30T00:55:35Z http://eprints.utm.my/45496/ A pathway-based approach for analyzing microarray data using random forests Tan Ah Chik @ Mohamad, Mohd. Saberi Shi, Chin Hui Deris, Safaai Ibrahim, Zuwairie Although machine learning methods, such as random forests, have been developed to correlate survival outcomes with a set of genes, less study has assessed the abilities of these methods in incorporating pathway information for analyzing microarray data. In general, genes that are identified without incorporating biological knowledge are more difficult to interpret. Thus, the pathway-based survival analysis using machine learning methods represents a promising approach for generating new biological hypothesis from microarray studies. The two popular variants of random forests used in this research for survival data are random survival forests and bivariate node-splitting random survival forests. There are three types of datasets used for this research and each dataset with a three-level outcome. This research which compared the four splitting rules available in random survival forests to identify log-rank test is the most accurate in terms of prediction error. To evaluate the accuracy of pathway based survival approach, this research considered employing area under the receiver operating characteristic curve for censored data. The use of random survival forests for survival outcomes in analyzing microarray data allows researchers to obtain results that are more closely tied with the biological mechanism of diseases. 2011 Conference or Workshop Item PeerReviewed Tan Ah Chik @ Mohamad, Mohd. Saberi and Shi, Chin Hui and Deris, Safaai and Ibrahim, Zuwairie (2011) A pathway-based approach for analyzing microarray data using random forests. In: Sixth International Conference On Innovative Computing, Information And Control (LCICIC 2011). |
| spellingShingle | Tan Ah Chik @ Mohamad, Mohd. Saberi Shi, Chin Hui Deris, Safaai Ibrahim, Zuwairie A pathway-based approach for analyzing microarray data using random forests |
| title | A pathway-based approach for analyzing microarray data using random forests |
| title_full | A pathway-based approach for analyzing microarray data using random forests |
| title_fullStr | A pathway-based approach for analyzing microarray data using random forests |
| title_full_unstemmed | A pathway-based approach for analyzing microarray data using random forests |
| title_short | A pathway-based approach for analyzing microarray data using random forests |
| title_sort | pathway based approach for analyzing microarray data using random forests |
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