NDLI: Discriminative Lasso

Content Provider	Springer Nature Link
Author	Zhang, Zhihong Xiahou, Jianbing Bai, Zheng Jian Hancock, Edwin R. Zhou, Da Chen, Si Bao Chen, Liyan
Copyright Year	2016
Abstract	Lasso-type variable selection has been demonstrated to be effective in handling high-dimensional data. From the biological perspective, traditional Lasso-type models are capable of learning which stimuli are valuable while ignoring the many that are not, and thus perform feature selection. Traditional Lasso has the tendency to over-emphasize sparsity and to overlook the correlations between features. These drawbacks have been demonstrated to be critical in limiting its performance on real-world feature selection problems. Although some work has considered the problem of correlation, the issue of discriminative ability resulting from sparsity has been overlooked. To overcome this shortcoming, we propose a discriminative Lasso (referred to as dLasso) in which sparsity and correlation are jointly considered. Specifically, the new method can select features (or stimuli) that are correlated more strongly with the response but are less correlated with each other. Moreover, an efficient alternating direction method of multipliers (ADMM) is presented to solve the resulting sparse non-convex optimization problem. Extensive experiments on different datasets show that although our proposed model is not a convex problem, it outperforms both its approximately convex counterparts and a number of state-of-the-art feature selection methods.
Starting Page	847
Ending Page	855
Page Count	9
File Format	PDF
ISSN	18669956
Journal	Cognitive Computation
Volume Number	8
Issue Number	5
e-ISSN	18669964
Language	English
Publisher	Springer US
Publisher Date	2016-04-07
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Lasso Feature selection Feature graph ADMM Neurosciences Computation by Abstract Devices Artificial Intelligence (incl. Robotics) Computational Biology/Bioinformatics
Content Type	Text
Resource Type	Article
Subject	Cognitive Neuroscience Computer Science Applications Computer Vision and Pattern Recognition

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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