Title
Ensemble of Bidirectional Recurrent Networks and Random Forests for Protein Secondary Structure Prediction
Abstract
The prediction of secondary protein structures is one of the classic problems of bioinformatics and has several practical applications. In this work, we present an ensemble of bidirectional recurrent networks (capable of doing long-term analyses of amino acid sequences) with random forests (capable of doing local analyses). The fusion was performed using weights for each of the classifiers and classes, found by searching through genetic algorithms. To evaluate our method, we used the PDB, CB6133 and CB513 datasets. We achieved 73.1%, 59.1% and 55.8% Q8 accuracy on PDB, CB6133 and CB513 proteins, respectively, whereas 81.5% Q3 accuracy on PDB proteins using only amino acid sequence information. In order to compare our results against the literature, we also evaluated our method using amino acid sequence and sequence profile features, achieving 73.4% and 68.9% Q8 accuracy on CB6133 and CB513. Our method yielded good results when using only the amino acid sequence and presents competitive results compared to the literature when using amino acid sequence information and protein sequence similarity.
Year
DOI
Venue
2020
10.1109/IWSSIP48289.2020.9145437
2020 International Conference on Systems, Signals and Image Processing (IWSSIP)
Keywords
DocType
ISSN
Protein Secondary Structure Prediction,Bidirectional Recurrent Network,Random Forest,Ensemble
Conference
2157-8672
ISBN
Citations 
PageRank 
978-1-7281-7539-3
1
0.36
References 
Authors
0
3
Name
Order
Citations
PageRank
Gabriel Bianchin de Oliveira111.03
Hélio Pedrini244855.92
Zanoni Dias326244.40