Title
Stability of Causal Inference.
Abstract
We consider the sensitivity of causal identification to small perturbations in the input. A long line of work culminating in papers by Shpitser and Pearl (2006) and Huang and Valtorta (2008) led to a complete procedure for the causal identification problem. In our main result in this paper, we show that the identification function computed by these procedures is in some cases extremely unstable numerically. Specifically, the \"condition number\" of causal identification can be of the order of Ω(exp(n0.49)) on an identifiable semi-Markovian model with n visible nodes. That is, in order to give an output accurate to d bits, the empirical probabilities of the observable events need to be obtained to accuracy d + Ω(n0.49) bits.
Year
Venue
Field
2016
UAI
Applied mathematics,Causal inference,Mathematical optimization,Condition number,Observable,Empirical probability,Parameter identification problem,Perturbation (astronomy),Mathematics,Calculus
DocType
Citations 
PageRank 
Conference
1
0.35
References 
Authors
3
2
Name
Order
Citations
PageRank
Leonard J. Schulman11328136.88
Piyush Srivastava2192.99