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http://dx.doi.org/10.9719/EEG.2022.55.3.309

Evaluating the Effectiveness of an Artificial Intelligence Model for Classification of Basic Volcanic Rocks Based on Polarized Microscope Image  

Sim, Ho (Department of Earth System Sciences, Yonsei University)
Jung, Wonwoo (Department of Earth System Sciences, Yonsei University)
Hong, Seongsik (Department of Earth System Sciences, Yonsei University)
Seo, Jaewon (Department of Earth System Sciences, Yonsei University)
Park, Changyun (Department of Geology, Kyungpook National University)
Song, Yungoo (Department of Earth System Sciences, Yonsei University)
Publication Information
Economic and Environmental Geology / v.55, no.3, 2022 , pp. 309-316 More about this Journal
Abstract
In order to minimize the human and time consumption required for rock classification, research on rock classification using artificial intelligence (AI) has recently developed. In this study, basic volcanic rocks were subdivided by using polarizing microscope thin section images. A convolutional neural network (CNN) model based on Tensorflow and Keras libraries was self-producted for rock classification. A total of 720 images of olivine basalt, basaltic andesite, olivine tholeiite, trachytic olivine basalt reference specimens were mounted with open nicol, cross nicol, and adding gypsum plates, and trained at the training : test = 7 : 3 ratio. As a result of machine learning, the classification accuracy was over 80-90%. When we confirmed the classification accuracy of each AI model, it is expected that the rock classification method of this model will not be much different from the rock classification process of a geologist. Furthermore, if not only this model but also models that subdivide more diverse rock types are produced and integrated, the AI model that satisfies both the speed of data classification and the accessibility of non-experts can be developed, thereby providing a new framework for basic petrology research.
Keywords
artificial intelligence (AI); deep learning; convolutional neural network (CNN); basic volcanic rock; rock classification;
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