Search Results for author: Eric V. Strobl

Found 19 papers, 6 papers with code

Unsupervised Discovery of Clinical Disease Signatures Using Probabilistic Independence

no code implementations8 Feb 2024 Thomas A. Lasko, John M. Still, Thomas Z. Li, Marco Barbero Mota, William W. Stead, Eric V. Strobl, Bennett A. Landman, Fabien Maldonado

Insufficiently precise diagnosis of clinical disease is likely responsible for many treatment failures, even for common conditions and treatments.

Why Do Probabilistic Clinical Models Fail To Transport Between Sites?

no code implementations8 Nov 2023 Thomas A. Lasko, Eric V. Strobl, William W. Stead

The rising popularity of artificial intelligence in healthcare is highlighting the problem that a computational model achieving super-human clinical performance at its training sites may perform substantially worse at new sites.

Root Causal Inference from Single Cell RNA Sequencing with the Negative Binomial

no code implementations10 Jul 2023 Eric V. Strobl

Accurately inferring the root causes of disease from sequencing data can improve the discovery of novel therapeutic targets.

Causal Inference

Counterfactual Formulation of Patient-Specific Root Causes of Disease

no code implementations27 May 2023 Eric V. Strobl

Root causes of disease intuitively correspond to root vertices that increase the likelihood of a diagnosis.

counterfactual Explainable artificial intelligence

Sample-Specific Root Causal Inference with Latent Variables

no code implementations27 Oct 2022 Eric V. Strobl, Thomas A. Lasko

Root causal analysis seeks to identify the set of initial perturbations that induce an unwanted outcome.

Causal Inference

Identifying Patient-Specific Root Causes with the Heteroscedastic Noise Model

no code implementations25 May 2022 Eric V. Strobl, Thomas A. Lasko

Complex diseases are caused by a multitude of factors that may differ between patients even within the same diagnostic category.

Causal Inference

Identifying Patient-Specific Root Causes of Disease

1 code implementation23 May 2022 Eric V. Strobl, Thomas A. Lasko

Complex diseases are caused by a multitude of factors that may differ between patients.

Causal Inference

Generalizing Clinical Trials with Convex Hulls

1 code implementation25 Nov 2021 Eric V. Strobl, Thomas A. Lasko

This assumption allows us to extrapolate results from exclusive trials to the broader population by analyzing observational and trial data simultaneously using an algorithm called Optimum in Convex Hulls (OCH).

Synthesized Difference in Differences

no code implementations2 May 2021 Eric V. Strobl, Thomas A. Lasko

We instead propose Synthesized Difference in Differences (SDD) that infers the correct (possibly non-parallel) slopes by linearly adjusting a conditional version of DD using additional RCT data.

Selection bias

Automated Hyperparameter Selection for the PC Algorithm

no code implementations3 Nov 2020 Eric V. Strobl

The PC algorithm infers causal relations using conditional independence tests that require a pre-specified Type I $\alpha$ level.

Dirac Delta Regression: Conditional Density Estimation with Clinical Trials

1 code implementation24 May 2019 Eric V. Strobl, Shyam Visweswaran

Personalized medicine seeks to identify the causal effect of treatment for a particular patient as opposed to a clinical population at large.

Causal Inference Density Estimation +1

Causal Discovery with a Mixture of DAGs

no code implementations28 Jan 2019 Eric V. Strobl

Causal processes in biomedicine may contain cycles, evolve over time or differ between populations.

Causal Discovery Causal Inference

A Constraint-Based Algorithm For Causal Discovery with Cycles, Latent Variables and Selection Bias

1 code implementation5 May 2018 Eric V. Strobl

Causal processes in nature may contain cycles, and real datasets may violate causal sufficiency as well as contain selection bias.

Causal Discovery Causal Inference +1

Approximate Kernel-based Conditional Independence Tests for Fast Non-Parametric Causal Discovery

no code implementations13 Feb 2017 Eric V. Strobl, Kun Zhang, Shyam Visweswaran

Constraint-based causal discovery (CCD) algorithms require fast and accurate conditional independence (CI) testing.

Causal Discovery

Estimating and Controlling the False Discovery Rate for the PC Algorithm Using Edge-Specific P-Values

1 code implementation14 Jul 2016 Eric V. Strobl, Peter L. Spirtes, Shyam Visweswaran

The PC algorithm allows investigators to estimate a complete partially directed acyclic graph (CPDAG) from a finite dataset, but few groups have investigated strategies for estimating and controlling the false discovery rate (FDR) of the edges in the CPDAG.

Markov Boundary Discovery with Ridge Regularized Linear Models

no code implementations14 Sep 2015 Eric V. Strobl, Shyam Visweswaran

Ridge regularized linear models (RRLMs), such as ridge regression and the SVM, are a popular group of methods that are used in conjunction with coefficient hypothesis testing to discover explanatory variables with a significant multivariate association to a response.

Causal Inference Dimensionality Reduction +1

Dependence versus Conditional Dependence in Local Causal Discovery from Gene Expression Data

1 code implementation28 Jul 2014 Eric V. Strobl, Shyam Visweswaran

However, the proposed algorithm using a CDM outperforms the proposed algorithm using a DM only when sample sizes are above several hundred.

Causal Discovery

Markov Blanket Ranking using Kernel-based Conditional Dependence Measures

no code implementations1 Feb 2014 Eric V. Strobl, Shyam Visweswaran

Developing feature selection algorithms that move beyond a pure correlational to a more causal analysis of observational data is an important problem in the sciences.

feature selection

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