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Bibliographic Details
Main Authors: Wang, Yuanyuan, Geng, Xi, Huang, Wei, Huang, Biwei, Gong, Mingming
Format: Preprint
Published: 2023
Subjects:
Online Access:https://arxiv.org/abs/2310.19491
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Table of Contents:
  • In this paper, we present conditions for identifying the generator of a linear stochastic differential equation (SDE) from the distribution of its solution process with a given fixed initial state. These identifiability conditions are crucial in causal inference using linear SDEs as they enable the identification of the post-intervention distributions from its observational distribution. Specifically, we derive a sufficient and necessary condition for identifying the generator of linear SDEs with additive noise, as well as a sufficient condition for identifying the generator of linear SDEs with multiplicative noise. We show that the conditions derived for both types of SDEs are generic. Moreover, we offer geometric interpretations of the derived identifiability conditions to enhance their understanding. To validate our theoretical results, we perform a series of simulations, which support and substantiate the established findings.