Using Domain Knowledge with Deep Learning to Solve Applied Inverse Problems

• URL: http://arxiv.org/abs/2501.10481v2
• Date: Sat, 15 Feb 2025 04:15:56 GMT
• Title: Using Domain Knowledge with Deep Learning to Solve Applied Inverse Problems
• Authors: Qinyi Tian, Winston Lindqwister, Manolis Veveakis, Laura E. Dalton,
• Abstract summary: In this study, the incorporation of domain-specific knowledge of mechanical behavior is investigated. To demonstrate this, stress-strain curves were used to predict key microstructural features of porous materials.
• Score: 0.0
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• Abstract: Advancements in deep learning have improved the ability to model complex, nonlinear relationships, such as those encountered in complex material inverse problems. However, the effectiveness of these methods often depends on large datasets, which are not always available. In this study, the incorporation of domain-specific knowledge of mechanical behavior is investigated to evaluate the impact on the predictive performance of the models in data-scarce scenarios. To demonstrate this, stress-strain curves were used to predict key microstructural features of porous materials, and the performance of models trained with and without domain knowledge was compared using five deep learning models: Convolutional Neural Networks, Extreme Gradient Boosting, K-Nearest Neighbors, Long Short-Term Memory, and Random Forest. The results of the models with domain-specific characteristics consistently achieved higher $R^2$ values and improved learning efficiency compared to models without prior knowledge. When the models did not include domain knowledge, the model results revealed meaningful patterns were not recognized, while those enhanced with mechanical insights showed superior feature extraction and predictions. These findings underscore the critical role of domain knowledge in guiding deep learning models, highlighting the need to combine domain expertise with data-driven approaches to achieve reliable and accurate outcomes in materials science and related fields.

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