NDLI: An ensemble method using small training sets for imbalanced data sets: Application to drugs used for kinases

Content Provider	IEEE Xplore Digital Library
Author	Rani, T.S. Soujanya, P.V.
Copyright Year	2013
Description	Author affiliation: Comput. Intell. Lab., Univ. of Hyderabad, Hyderabad, India (Rani, T.S.) \|\| Syst. Eng., Tata Consultancy Services, Bangalore, India (Soujanya, P.V.)
Abstract	Nearly all aspects of cell life and death are controlled by the phosphorylation of proteins which are catalyzed by kinases. Malfunctioning of kinases results in cell disorders causing cancers and other diseases. The present study deals with the identification of predominant features present in the inhibitors targeting these enzymes and classification of the kinase and non-kinase inhibitors using machine learning algorithms. The present work deals with two challenges. The first challenge is the classification of unbalanced data sets. Unbalanced data sets are the data sets in which there is an imbalance in the size of data sets that constitute these sets. The second challenge is the concept complexity (closely related minority and majority data sets in the feature space). Our approach deals with the binary classification of approved human inhibitors present in the Drug bank database into kinase and non-kinase inhibitors. Clustering of the inhibitors followed by classification using an ensemble consisting of several classification models is generated. Classification is done in two levels. Weighted voting is used after each level. Finally an overall accuracy of 80% is obtained after two levels of classification. Thus we established a new a type of approach for the classification of unbalanced data sets and the data sets in which there is an overlap between instances belonging to dierent classes. Finally we established a signature specific to kinase inhibitors.
Starting Page	516
Ending Page	521
File Size	1000373
Page Count	6
File Format	PDF
e-ISBN	9781479901920
DOI	10.1109/IC3.2013.6612250
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-08-08
Publisher Place	India
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Drugs Training Proteins Accuracy Inhibitors Databases Data models
Content Type	Text
Resource Type	Article

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