How inaccurate is respiration rate estimation?

Talha Iqbal Postdoctoral Research Associate at University of Galway, Ireland https://www.linkedin.com/in/talha-iqbal-550aa186/?originalSubdomain=ie wrote recently a paper abou this: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9056464 Results The Mean Absolute Error and the Root Mean Square Error of the proposed algorithm, with the optimal signal window size, are determined to be 2.05 breaths count per minute and 2.47 breaths count per minute, respectively, …