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A convolutional neural network (CNN) based ensemble model for exoplanet detection

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Abstract

Exoplanet detection is an extremely active research topic in astronomy. Researchers in the past have attempted to detect exoplanets using conventional methods like Radial Velocity, Transit Method, Gravitational Microlensing, Direct Imaging, Polarimetry, Astrometry, etc. While the approaches undertaken for all these studies vary, many of the research works conducted are based on the change in flux (light intensity). Based on the same characteristic, we explore yet another method of detecting exoplanets in space, using Artificial Intelligence. We rely on several machine learning algorithms like Decision Trees, Support Vector Machines, Logistic Regression, Random Forest Classifier, Multilayer Perceptron (MLP), Convolutional Neural Networks (CNN), as baseline algorithms and introduce an Ensemble-CNN model to draw out comparisons between the different machine learning models. The performance of the models has been evaluated using parameters like Accuracy, Precision, Sensitivity, and Specificity. Our results denote that the proposed Ensemble-CNN model performs relatively better for detecting exoplanets with an accuracy of 99.62%. The research will be useful in the fields of Astronomy as well as Artificial Intelligence and would be of substantial importance to physicists, cosmologists, scientists, researchers, academicians, industry experts, and machine learning experts who work in areas related to (or closely related to) exoplanet detection.

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Authors and Affiliations

  1. Department of Electrical and Computer Engineering, University of Delaware, Newark, USA

    Ishaani Priyadarshini

  2. Center of Visualization and Simulation, Duy Tan University, Da Nang, Vietnam

    Vikram Puri

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  1. Ishaani Priyadarshini
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  2. Vikram Puri
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Contributions

Conception and Design of Work: Ishaani Priyadarshini and Vikram Puri, Data Collection: Ishaani Priyadarshini, Data Analysis and Interpretation: Ishaani Priyadarshini and Vikram Puri, Drafting the Article: Ishaani Priyadarshini, Critical Revision of the Article: Vikram Puri, Final Approval of the Version to be submitted: Vikram Puri.

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Correspondence to Vikram Puri.

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Priyadarshini, I., Puri, V. A convolutional neural network (CNN) based ensemble model for exoplanet detection. Earth Sci Inform 14, 735–747 (2021). https://doi.org/10.1007/s12145-021-00579-5

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