title: Predicting protein structural class with AdaBoost Learner.
abstract: The structural class is an important feature in characterizing the overall topological folding type of a protein or the domains therein. Prediction of protein structural classification has attracted the attention and efforts from many investigators. In this paper a novel predictor, the AdaBoost Learner, was introduced to deal with this problem. The essence of the AdaBoost Learner is that a combination of many 'weak' learning algorithms, each performing just slightly better than a random guessing algorithm, will generate a 'strong' learning algorithm. Demonstration thru jackknife cross-validation on two working datasets constructed by previous investigators indicated that AdaBoost outperformed other predictors such as SVM (support vector machine), a powerful algorithm widely used in biological literatures. It has not escaped our notice that AdaBoost may hold a high potential for improving the quality in predicting the other protein features as well, such as subcellular location and receptor type, among many others. Or at the very least, it will play a complementary role to many of the existing algorithms in this regard.
authors.affiliation: Department of Chemistry, College of Sciences, Shanghai University, 99 Shang-Da Road, Shanghai 200436, China. lifescience@san.rr.com
authors.forename: Bing
authors.initials: B
authors.lastname: Niu
authors.forename: Yu-Dong
authors.initials: YD
authors.lastname: Cai
authors.forename: Wen-Cong
authors.initials: WC
authors.lastname: Lu
authors.forename: Guo-Zheng
authors.initials: GZ
authors.lastname: Li
authors.forename: Kuo-Chen
authors.initials: KC
authors.lastname: Chou
mesh_terms: D000465:Algorithms; D008433:Mathematics; D008958:Models, Molecular; D011487:Protein Conformation; D017510:Protein Folding; D011506:Proteins / Q000737:chemistry* / Q000145:classification / Q000378:metabolism; D015203:Reproducibility of Results
chemical_list: D011506:Proteins