| 邱 纯,马巧蓉,赵曼曼,苏 强,钟美佐.基于CFS-mRMR特征筛选方法和Adaboost算法的胶质瘤
相关基因筛选及预测模型的建立[J].,2019,19(1):26-30 |
| 基于CFS-mRMR特征筛选方法和Adaboost算法的胶质瘤
相关基因筛选及预测模型的建立 |
| Study of Classification of Gliomas PredictionBased on Machine Learning Method |
| 投稿时间：2018-05-14 修订日期：2018-06-12 |
| DOI：10.13241/j.cnki.pmb.2019.01.006 |
| 中文关键词: 胶质瘤 特征筛选 差异基因 Adaboost |
| 英文关键词: Gliomas Feature selection Adaboost Differential express genes |
| 基金项目: |
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| 中文摘要: |
| 摘要 目的：找出胶质瘤病变发生机制相关的基因群，并在此基础上建立预测胶质瘤病变发生的预测模型。方法：收集GEO中胶质瘤芯片数据，使用关联特征选择（Correlation-based Feature Subset, CFS）和最小冗余最大相关性（Minimum Redundancy Maximum Relevance, mRMR）特征选择方法筛选出差异基因，分析这些差异基因的功能，然后使用Adaboost算法建立胶质瘤的预测模型，并对模型的预测能力进行评估。结果：通过特征筛选，得到了19个和胶质瘤病变相关的的基因；以该19个基因建组成特征子集，结合AdaBoost算法建立了胶质瘤的预测模型，经验证，模型的预报准确率可以达到95.59 %。通过对19个差异基因的GO和KEGG分析，发现这些基因和肿瘤的发生发展有一定作用。结论：CFS-mRMR特征筛选方法可以有效地发现与胶质瘤疾病有关的基因，所筛选的19个差异基因具有生物学意义，且以此构建的胶质瘤预测模型，可以有效地对预测胶质瘤的发生。 |
| 英文摘要: |
| ABSTRACT Objective: This study aims to search the genes related to the mechanisms of occurrences of glioma, and try to build the prediction model of glioma. Methods: In this article, the data were collected from GEO database, and the prediction model of gliomas was studied using the mRMR and correlation-based feature subset (CfsSubset)-Adaboost method. Results:After feature selection,19 genes related to the mechanisms of occurrences of glioma were obtained. Based on the 19 genes, a prediction model based on Adaboost were built, which could be applied to predict the occurrence of glioma. The prediction model yields an accuracy rate of 95.59% for the 10-folds cross validation test. T EGFR and MAD2L1 were found related to gliomas based on GO and KEGG analysis. Conclusion: CFS-mRMR is an efficient feature selection method on searching the key genes correlated to gliomas, which also could be employed to build prediction model. |
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