DeepBipolar: Identifying genomic mutations for bipolar disorder via deep learning

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Abstract

Bipolar disorder, also known as manic depression, is a brain disorder that affects the brain structure of a patient. It results in extreme mood swings, severe states of depression, and overexcitement simultaneously. It is estimated that roughly 3% of the population of the United States (about 5.3 million adults) suffers from bipolar disorder. Recent research efforts like the Twin studies have demonstrated a high heritability factor for the disorder, making genomics a viable alternative for detecting and treating bipolar disorder, in addition to the conventional lengthy and costly postsymptom clinical diagnosis. Motivated by this study, leveraging several emerging deep learning algorithms, we design an end-to-end deep learning architecture (called DeepBipolar) to predict bipolar disorder based on limited genomic data. DeepBipolar adopts the Deep Convolutional Neural Network (DCNN) architecture that automatically extracts features from genotype information to predict the bipolar phenotype. We participated in the Critical Assessment of Genome Interpretation (CAGI) bipolar disorder challenge and DeepBipolar was considered the most successful by the independent assessor. In this work, we thoroughly evaluate the performance of DeepBipolar and analyze the type of signals we believe could have affected the classifier in distinguishing the case samples from the control set.

We designed an end-to-end deep learning architecture (called DeepBipolar) to predict bipolar disorder based on limited genomic data. Leveraging Deep Convolutional Neural Network (DCNN), it automatically extracts features from genotype information to predict the bipolar phenotype. DeepBipolar was considered the most successful by the independent assessor in the Critical Assessment of Genome Interpretation (CAGI) bipolar disorder challenge.

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