Gappy local conformal auto-encoders for heterogeneous data fusion: in praise of rigidity

E Peterfreund, I Burak, O Lindenbaum, J Gimlett…�- arXiv preprint arXiv�…, 2023 - arxiv.org
arXiv preprint arXiv:2312.13155, 2023arxiv.org
Fusing measurements from multiple, heterogeneous, partial sources, observing a common
object or process, poses challenges due to the increasing availability of numbers and types
of sensors. In this work we propose, implement and validate an end-to-end computational
pipeline in the form of a multiple-auto-encoder neural network architecture for this task. The
inputs to the pipeline are several sets of partial observations, and the result is a globally
consistent latent space, harmonizing (rigidifying, fusing) all measurements. The key enabler�…
Fusing measurements from multiple, heterogeneous, partial sources, observing a common object or process, poses challenges due to the increasing availability of numbers and types of sensors. In this work we propose, implement and validate an end-to-end computational pipeline in the form of a multiple-auto-encoder neural network architecture for this task. The inputs to the pipeline are several sets of partial observations, and the result is a globally consistent latent space, harmonizing (rigidifying, fusing) all measurements. The key enabler is the availability of multiple slightly perturbed measurements of each instance:, local measurement, "bursts", that allows us to estimate the local distortion induced by each instrument. We demonstrate the approach in a sequence of examples, starting with simple two-dimensional data sets and proceeding to a Wi-Fi localization problem and to the solution of a "dynamical puzzle" arising in spatio-temporal observations of the solutions of Partial Differential Equations.
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