A Hierarchical Deep Convolutional Neural Network and Gated Recurrent Unit Framework for Structural Damage Detection

• URL: http://arxiv.org/abs/2006.01045v1
• Date: Fri, 29 May 2020 07:55:04 GMT
• Title: A Hierarchical Deep Convolutional Neural Network and Gated Recurrent Unit Framework for Structural Damage Detection
• Authors: Jianxi Yang (1), Likai Zhang (1), Cen Chen (2), Yangfan Li (3), Ren Li (1), Guiping Wang (1), Shixin Jiang (1), Zeng Zeng (2) ((1) School of Information Science and Engineering, Chongqing Jiaotong University, (2) Institute for Infocomm Research (I2R), A*STAR, (3) College of Computer Science and Electronic Engineering, Hunan University)
• Abstract summary: We propose a novel Hierarchical CNN and Gated recurrent unit (GRU) framework to model both spatial and temporal relations. Our proposed HCG outperforms other existing methods for structural damage detection significantly.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Structural damage detection has become an interdisciplinary area of interest for various engineering fields, while the available damage detection methods are being in the process of adapting machine learning concepts. Most machine learning based methods heavily depend on extracted ``hand-crafted" features that are manually selected in advance by domain experts and then, fixed. Recently, deep learning has demonstrated remarkable performance on traditional challenging tasks, such as image classification, object detection, etc., due to the powerful feature learning capabilities. This breakthrough has inspired researchers to explore deep learning techniques for structural damage detection problems. However, existing methods have considered either spatial relation (e.g., using convolutional neural network (CNN)) or temporal relation (e.g., using long short term memory network (LSTM)) only. In this work, we propose a novel Hierarchical CNN and Gated recurrent unit (GRU) framework to model both spatial and temporal relations, termed as HCG, for structural damage detection. Specifically, CNN is utilized to model the spatial relations and the short-term temporal dependencies among sensors, while the output features of CNN are fed into the GRU to learn the long-term temporal dependencies jointly. Extensive experiments on IASC-ASCE structural health monitoring benchmark and scale model of three-span continuous rigid frame bridge structure datasets have shown that our proposed HCG outperforms other existing methods for structural damage detection significantly.

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