Classifying Partially Labeled Networked Data VIA Logistic Network Lasso

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Conference article in proceedings
Date
2020-05
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Language
en
Pages
5
3832-3836
Series
2020 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2020 - Proceedings, ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings, Volume 2020-May
Abstract
We apply the network Lasso to classify partially labeled data points which are characterized by high-dimensional feature vectors. In order to learn an accurate classifier from limited amounts of labeled data, we borrow statistical strength, via an intrinsic network structure, across the dataset. The resulting logistic network Lasso amounts to a regularized empirical risk minimization problem using the total variation of a classifier as a regularizer. This minimization problem is a nonsmooth convex optimization problem which we solve using a primal-dual splitting method. This method is appealing for big data applications as it can be implemented as a highly scalable message passing algorithm.
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Tran , N , Ambos , H & Jung , A 2020 , Classifying Partially Labeled Networked Data VIA Logistic Network Lasso . in 2020 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2020 - Proceedings . , 9054408 , ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings , vol. 2020-May , IEEE , pp. 3832-3836 , IEEE International Conference on Acoustics, Speech, and Signal Processing , Barcelona , Spain , 04/05/2020 . https://doi.org/10.1109/ICASSP40776.2020.9054408