Work

Covariate-adjusted functional data analysis for structural health monitoring

Year: 2025
Type: article
Abstract: Structural health monitoring (SHM) is increasingly applied in civil engineering. One of its primary purposes is detecting and assessing changes in structure conditions to increase safety and reduce potential maintenance downtime. Recent advancements, especially in sensor technology, facilitate data measurements, collection, and process automation, leading to large data streams. We propose a function-on-function regression framework for (nonlinear) modeling the sensor data and adjusting for covariate-induced variation. Our approach is particularly suited for long-term monitoring when several months or years of training data are available. It combines highly flexible yet interpretable semi-parametric modeling with functional principal component analysis and uses the corresponding out-of-sample Phase-II scores for monitoring. The method proposed can also be described as a combination of an “input–output” and an “output-only” method.
Language: English
Open Access status: gold
Estimated APC paid: $3,550
OpenAlex ID: W4410414863
FWCI: 1.863
Cites: 65
Cited by: 5
Related to: 10