Subproject A04

MoCES – Modeling of civil engineering structures with particular attention to incomplete and uncertain measurement data by using explainable machine learning

One of the main goals of infrastructure maintenance is to make it predictive. Therefore it is necessary to do fundamental research on methods for collecting, fusing und evaluating all geometry, material, stress and aging data. Within the development of predictive maintenance concepts, the creation of digital twins becomes a key component.

The goal of this project is to develop new methods and processes of automated modeling of complex building structures. This means that a wide variety of data streams should be fused, while taking their uncertainty and incompleteness into account. The modeling will be realised on basis of machine learning methods, which will be extented by an explanatory component which enables reproducible conclusions for the object modeling and reconstruction.

The realisation of the project is planned in three steps: Data homogenisation, data fusion and modeling, which are described in Figure 1. Within the first step, methods and processes for an automated data fusion of different data streams are investigated and implemented as a demonstrator. The question arises whether it is possible to create one single machine learning based process for the data homogenisation or if individual data streams have to be combined in different smart processes. The process of data homogenisation will be supplemented by exploring methods and processes to account uncertainties and incompleteness of the data. Incomplete data has do be completed within the data fusion processes. After joining the different data streams a semantic segmentation will allow a comprehensive modeling of bridges. In this context, it should be tried to open the “black box” of deep learning approaches with the help of an explainable component.  

The figure shows the process in its full configuration. It is indicated (dashed line) that the integration of documents, especially plans, can be achieved by mapping them onto the final model, but also by taking them into account in the modeling process.