Search Results for author: Tyler H. McCormick

Found 15 papers, 9 papers with code

Model-Based Inference and Experimental Design for Interference Using Partial Network Data

no code implementations17 Jun 2024 Steven Wilkins Reeves, Shane Lubold, Arun G. Chandrasekhar, Tyler H. McCormick

The stable unit treatment value assumption states that the outcome of an individual is not affected by the treatment statuses of others, however in many real world applications, treatments can have an effect on many others beyond the immediately treated.

Experimental Design

From Narratives to Numbers: Valid Inference Using Language Model Predictions from Verbal Autopsy Narratives

no code implementations3 Apr 2024 Shuxian Fan, Adam Visokay, Kentaro Hoffman, Stephen Salerno, Li Liu, Jeffrey T. Leek, Tyler H. McCormick

In this paper, we develop a method for valid inference using outcomes (in our case COD) predicted from free-form text using state-of-the-art NLP techniques.

Decision Making Language Modelling +1

Robustly estimating heterogeneity in factorial data using Rashomon Partitions

2 code implementations2 Apr 2024 Aparajithan Venkateswaran, Anirudh Sankar, Arun G. Chandrasekhar, Tyler H. McCormick

Many statistical analyses, in both observational data and randomized control trials, ask: how does the outcome of interest vary with combinations of observable covariates?

Non-robustness of diffusion estimates on networks with measurement error

no code implementations8 Mar 2024 Arun G. Chandrasekhar, Paul Goldsmith-Pinkham, Tyler H. McCormick, Samuel Thau, Jerry Wei

First, we show that even when measurement error is vanishingly small, such that the share of missed links is close to zero, forecasts about the extent of diffusion will greatly underestimate the truth.

Marketing

Do We Really Even Need Data?

no code implementations14 Jan 2024 Kentaro Hoffman, Stephen Salerno, Awan Afiaz, Jeffrey T. Leek, Tyler H. McCormick

As artificial intelligence and machine learning tools become more accessible, and scientists face new obstacles to data collection (e. g. rising costs, declining survey response rates), researchers increasingly use predictions from pre-trained algorithms as outcome variables.

Survey Sampling

Bayesian Hyperbolic Multidimensional Scaling

1 code implementation26 Oct 2022 Bolun Liu, Shane Lubold, Adrian E. Raftery, Tyler H. McCormick

We propose a Bayesian approach to multidimensional scaling when the low-dimensional manifold is hyperbolic.

Spectral goodness-of-fit tests for complete and partial network data

1 code implementation17 Jun 2021 Shane Lubold, Bolun Liu, Tyler H. McCormick

In this work, we address the question of how to determine whether a parametric model, such as a stochastic block model or latent space model, fits a dataset well and will extrapolate to similar data.

Community Detection Stochastic Block Model

Inference for Network Regression Models with Community Structure

no code implementations8 Jun 2021 Mengjie Pan, Tyler H. McCormick, Bailey K. Fosdick

Network regression models, where the outcome comprises the valued edge in a network and the predictors are actor or dyad-level covariates, are used extensively in the social and biological sciences.

Clustering regression +1

Identifying the latent space geometry of network models through analysis of curvature

1 code implementation19 Dec 2020 Shane Lubold, Arun G. Chandrasekhar, Tyler H. McCormick

A common approach to modeling networks assigns each node to a position on a low-dimensional manifold where distance is inversely proportional to connection likelihood.

Position Sociology

Anomaly Detection in Large Scale Networks with Latent Space Models

no code implementations13 Nov 2019 Wesley Lee, Tyler H. McCormick, Joshua Neil, Cole Sodja, Yanran Cui

We develop a real-time anomaly detection algorithm for directed activity on large, sparse networks.

Anomaly Detection

Bayesian Joint Spike-and-Slab Graphical Lasso

1 code implementation18 May 2018 Zehang Richard Li, Tyler H. McCormick, Samuel J. Clark

In this article, we propose a new class of priors for Bayesian inference with multiple Gaussian graphical models.

Bayesian Inference Model Selection

Using Bayesian latent Gaussian graphical models to infer symptom associations in verbal autopsies

1 code implementation2 Nov 2017 Zehang Richard Li, Tyler H. McCormick, Samuel J. Clark

Learning dependence relationships among variables of mixed types provides insights in a variety of scientific settings and is a well-studied problem in statistics.

Applications

An Expectation Conditional Maximization approach for Gaussian graphical models

1 code implementation20 Sep 2017 Zehang Richard Li, Tyler H. McCormick

Bayesian graphical models are a useful tool for understanding dependence relationships among many variables, particularly in situations with external prior information.

Variable Selection

Interpretable classifiers using rules and Bayesian analysis: Building a better stroke prediction model

2 code implementations5 Nov 2015 Benjamin Letham, Cynthia Rudin, Tyler H. McCormick, David Madigan

We introduce a generative model called Bayesian Rule Lists that yields a posterior distribution over possible decision lists.

Modeling Recovery Curves With Application to Prostatectomy

1 code implementation27 Apr 2015 Fulton Wang, Tyler H. McCormick, Cynthia Rudin, John Gore

We propose a Bayesian model that predicts recovery curves based on information available before the disruptive event.

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