Search Results for author: Thomas S. Richardson

Found 8 papers, 0 papers with code

A Nonparametric Bayes Approach to Online Activity Prediction

no code implementations26 Jan 2024 Mario Beraha, Lorenzo Masoero, Stefano Favaro, Thomas S. Richardson

We derive closed-form expressions for the number of new users expected in a given period, and a simple Monte Carlo algorithm targeting the posterior distribution of the number of days needed to attain a desired number of users; the latter is important for experimental planning.

Activity Prediction

Assumptions and Bounds in the Instrumental Variable Model

no code implementations24 Jan 2024 Thomas S. Richardson, James M. Robins

In this note we give proofs for results relating to the Instrumental Variable (IV) model with binary response $Y$ and binary treatment $X$, but with an instrument $Z$ with $K$ states.

The m-connecting imset and factorization for ADMG models

no code implementations18 Jul 2022 Bryan Andrews, Gregory F. Cooper, Thomas S. Richardson, Peter Spirtes

The m-connecting imset and factorization criterion provide two new statistical tools for learning and inference with ADMG models.

Multivariate Counterfactual Systems And Causal Graphical Models

no code implementations13 Aug 2020 Ilya Shpitser, Thomas S. Richardson, James M. Robins

Among Judea Pearl's many contributions to Causality and Statistics, the graphical d-separation} criterion, the do-calculus and the mediation formula stand out.

Methodology 62P10

A factorization criterion for acyclic directed mixed graphs

no code implementations26 Jun 2014 Thomas S. Richardson

Acyclic directed mixed graphs, also known as semi-Markov models represent the conditional independence structure induced on an observed margin by a DAG model with latent variables.

Sparse Nested Markov models with Log-linear Parameters

no code implementations26 Sep 2013 Ilya Shpitser, Robin J. Evans, Thomas S. Richardson, James M. Robins

To make modeling and inference with nested Markov models practical, it is necessary to limit the number of parameters in the model, while still correctly capturing the constraints in the marginal of a DAG model.

Causal Inference

Proceedings of the Twenty-Second Conference on Uncertainty in Artificial Intelligence (2006)

no code implementations25 Aug 2012 Rina Dechter, Thomas S. Richardson

This is the Proceedings of the Twenty-Second Conference on Uncertainty in Artificial Intelligence, which was held in Cambridge, MA, July 13 - 16 2006.

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