# The Observability in Unobservable Systems

arXiv: https://arxiv.org/abs/2201.04186 · HTML: https://mlsanity.com/paper/2201.04186/

## Key facts

- Cited by 1 papers in the map (data through 14 Oct 2026).
- First posted on arXiv 11 Jan 2022.

## Built on by (most cited first, 1 of 1)

- [A Surrogate Data Assimilation Model for the Estimation of Dynamical System in a Limited Area](https://mlsanity.com/paper/2307.07178/) (2023)

## Abstract (arXiv)

In this paper, we introduce the concept of observability of targeted state variables for systems that may not be fully observable. For their estimation, we introduce and exemplify a deep filter, which is a neural network specifically designed for the estimation of targeted state variables without computing the trajectory of the entire system. The observability definition is quantitative rather than a yes or no answer so that one can compare the level of observability between different sensor locations.