4 citations · 5 across the 4 of their papers we have counts for
6 papers
Exploring the Stratified Space Structure of an RL Game with the Volume Growth Transform
Justin Curry, Brennan Lagasse, Ngoc B. Lam +3
In this work, we explore the structure of the embedding space of a transformer model trained for playing a particular reinforcement learning (RL) game. Specifically, we investigate…
Weak Identification in Low-Dimensional Factor Models with One or Two Factors
Gregory Cox
This paper describes how to reparameterize low-dimensional factor models with one or two factors to fit weak identification theory developed for generalized method of moments model…
A Generalized Argmax Theorem with Applications
Gregory Cox
The argmax theorem is a useful result for deriving the limiting distribution of estimators in many applications. The conclusion of the argmax theorem states that the argmax of a se…
Weak Identification with Bounds in a Class of Minimum Distance Models
Gregory Fletcher Cox
When parameters are weakly identified, bounds on the parameters may provide a valuable source of information. Existing weak identification estimation and inference results are unab…
Simple Adaptive Size-Exact Testing for Full-Vector and Subvector Inference in Moment Inequality Models
Gregory Cox, Xiaoxia Shi
We propose a simple test for moment inequalities that has exact size in normal models with known variance and has uniformly asymptotically exact size more generally. The test compa…
Almost Sure Uniqueness of a Global Minimum Without Convexity
Gregory Cox
This paper establishes the argmin of a random objective function to be unique almost surely. This paper first formulates a general result that proves almost sure uniqueness without…