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Representation of features as images with neighborhood dependencies for compatibility with convolutional neural networks.


ABSTRACT: Deep learning with Convolutional Neural Networks has shown great promise in image-based classification and enhancement but is often unsuitable for predictive modeling using features without spatial correlations. We present a feature representation approach termed REFINED (REpresentation of Features as Images with NEighborhood Dependencies) to arrange high-dimensional vectors in a compact image form conducible for CNN-based deep learning. We consider the similarities between features to generate a concise feature map in the form of a two-dimensional image by minimizing the pairwise distance values following a Bayesian Metric Multidimensional Scaling Approach. We hypothesize that this approach enables embedded feature extraction and, integrated with CNN-based deep learning, can boost the predictive accuracy. We illustrate the superior predictive capabilities of the proposed framework as compared to state-of-the-art methodologies in drug sensitivity prediction scenarios using synthetic datasets, drug chemical descriptors as predictors from NCI60, and both transcriptomic information and drug descriptors as predictors from GDSC.

SUBMITTER: Bazgir O 

PROVIDER: S-EPMC7463019 | biostudies-literature | 2020 Sep

REPOSITORIES: biostudies-literature

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Representation of features as images with neighborhood dependencies for compatibility with convolutional neural networks.

Bazgir Omid O   Zhang Ruibo R   Dhruba Saugato Rahman SR   Rahman Raziur R   Ghosh Souparno S   Pal Ranadip R  

Nature communications 20200901 1


Deep learning with Convolutional Neural Networks has shown great promise in image-based classification and enhancement but is often unsuitable for predictive modeling using features without spatial correlations. We present a feature representation approach termed REFINED (REpresentation of Features as Images with NEighborhood Dependencies) to arrange high-dimensional vectors in a compact image form conducible for CNN-based deep learning. We consider the similarities between features to generate  ...[more]

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