Title
Three-quarter Sibling Regression for Denoising Observational Data.
Abstract
Many ecological studies and conservation policies are based on field observations of species, which can be affected by systematic variability introduced by the observation process. A recently introduced causal modeling technique called 'half-sibling regression' can detect and correct for systematic errors in measurements of multiple independent random variables. However, it will remove intrinsic variability if the variables are dependent, and therefore does not apply to many situations, including modeling of species counts that are controlled by common causes. We present a technique called 'three-quarter sibling regression' to partially overcome this limitation. It can filter the effect of systematic noise when the latent variables have observed common causes. We provide theoretical justification of this approach, demonstrate its effectiveness on synthetic data, and show that it reduces systematic detection variability due to moon brightness in moth surveys.
Year
DOI
Venue
2019
10.24963/ijcai.2019/826
IJCAI
Field
DocType
ISSN
Noise reduction,Observational study,Regression,Computer science,Sibling,Quarter (United States coin),Artificial intelligence,Machine learning
Conference
IJCAI 2019
Citations 
PageRank 
References 
0
0.34
0
Authors
5
Name
Order
Citations
PageRank
Shiv Shankar100.34
Sheldon, Daniel R.218023.15
Tao Sun3222.52
John Pickering400.34
Thomas G. Dietterich593361722.57