Search Results for author: Sanghack Lee

Found 11 papers, 2 papers with code

Causal Effect Identifiability under Partial-Observability

no code implementations ICML 2020 Sanghack Lee, Elias Bareinboim

Finally, building on these graphical properties, we develop an algorithm that returns a formula for a causal effect in terms of the available distributions.

Causal Identification with Matrix Equations

no code implementations NeurIPS 2021 Sanghack Lee, Elias Bareinboim

Causal effect identification is concerned with determining whether a causal effect is computable from a combination of qualitative assumptions about the underlying system (e. g., a causal graph) and distributions collected from this system.

Causal Identification

Nested Counterfactual Identification from Arbitrary Surrogate Experiments

no code implementations NeurIPS 2021 Juan D Correa, Sanghack Lee, Elias Bareinboim

In this paper, we study the identification of nested counterfactuals from an arbitrary combination of observations and experiments.

counterfactual Fairness

Characterizing Optimal Mixed Policies: Where to Intervene and What to Observe

no code implementations NeurIPS 2020 Sanghack Lee, Elias Bareinboim

Intelligent agents are continuously faced with the challenge of optimizing a policy based on what they can observe (see) and which actions they can take (do) in the environment where they are deployed.

Towards Robust Relational Causal Discovery

1 code implementation5 Dec 2019 Sanghack Lee, Vasant Honavar

In practice, queries to a RCI oracle have to be replaced by reliable tests for RCI against available data.

Causal Discovery

Fairness in Algorithmic Decision Making: An Excursion Through the Lens of Causality

no code implementations27 Mar 2019 Aria Khademi, Sanghack Lee, David Foley, Vasant Honavar

As virtually all aspects of our lives are increasingly impacted by algorithmic decision making systems, it is incumbent upon us as a society to ensure such systems do not become instruments of unfair discrimination on the basis of gender, race, ethnicity, religion, etc.

Attribute Decision Making +1

Structural Causal Bandits: Where to Intervene?

1 code implementation NeurIPS 2018 Sanghack Lee, Elias Bareinboim

We study the problem of identifying the best action in a sequential decision-making setting when the reward distributions of the arms exhibit a non-trivial dependence structure, which is governed by the underlying causal model of the domain where the agent is deployed.

Decision Making

Lifted Representation of Relational Causal Models Revisited: Implications for Reasoning and Structure Learning

no code implementations10 Aug 2015 Sanghack Lee, Vasant Honavar

The correctness of the algorithm proposed by Maier et al. (2013a) for learning RCM from data relies on the soundness and completeness of AGG for relational d-separation to reduce the learning of an RCM to learning of an AGG.

Transportability from Multiple Environments with Limited Experiments

no code implementations NeurIPS 2013 Elias Bareinboim, Sanghack Lee, Vasant Honavar, Judea Pearl

This paper considers the problem of transferring experimental findings learned from multiple heterogeneous domains to a target environment, in which only limited experiments can be performed.

Causal Transportability of Experiments on Controllable Subsets of Variables: z-Transportability

no code implementations26 Sep 2013 Sanghack Lee, Vasant Honavar

We provide a correct and complete algorithm that determines whether a causal effect is z-transportable; and if it is, produces a transport formula, that is, a recipe for estimating the causal effect of X on Y in the target domain using information elicited from the results of experimental manipulations of Z in the source domain and observational data from the target domain.

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