Title
Multilabel learning via random label selection for protein subcellular multilocations prediction.
Abstract
Prediction of protein subcellular localization is an important but challenging problem, particularly when proteins may simultaneously exist at, or move between, two or more different subcellular location sites. Most of the existing protein subcellular localization methods are only used to deal with the single-location proteins. In the past few years, only a few methods have been proposed to tackle proteins with multiple locations. However, they only adopt a simple strategy, that is, transforming the multilocation proteins to multiple proteins with single location, which does not take correlations among different subcellular locations into account. In this paper, a novel method named random label selection (RALS) (multilabel learning via RALS), which extends the simple binary relevance (BR) method, is proposed to learn from multilocation proteins in an effective and efficient way. RALS does not explicitly find the correlations among labels, but rather implicitly attempts to learn the label correlations from data by augmenting original feature space with randomly selected labels as its additional input features. Through the fivefold cross-validation test on a benchmark data set, we demonstrate our proposed method with consideration of label correlations obviously outperforms the baseline BR method without consideration of label correlations, indicating correlations among different subcellular locations really exist and contribute to improvement of prediction performance. Experimental results on two benchmark data sets also show that our proposed methods achieve significantly higher performance than some other state-of-the-art methods in predicting subcellular multilocations of proteins. The prediction web server is available at >http://levis.tongji.edu.cn:8080/bioinfo/MLPred-Euk/ for the public usage.
Year
DOI
Venue
2013
10.1109/TCBB.2013.21
IEEE/ACM transactions on computational biology and bioinformatics / IEEE, ACM
Keywords
Field
DocType
different subcellular location site,baseline br method,subcellular multilocations,different subcellular location,benchmark data,random label selection,label correlation,multilocation protein,existing protein subcellular localization,multilabel learning,protein subcellular localization,protein subcellular multilocations prediction,proteins,molecular biophysics,benchmark testing,learning artificial intelligence,proteomics
Cellular biophysics,Feature vector,Data set,Computer science,Artificial intelligence,Molecular biophysics,Bioinformatics,Machine learning,Benchmark (computing),Binary number,Web server
Journal
Volume
Issue
ISSN
10
2
1557-9964
Citations 
PageRank 
References 
10
0.68
27
Authors
2
Name
Order
Citations
PageRank
Xiao Wang1472.24
Guo-Zheng Li236842.62