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Claudia Shi

9 accepted papers

2026

OpenApps: Simulating Environment Variations to Measure UI Agent Reliability

ICLR 2026oral

Reliability is key to realizing the promise of autonomous UI-agents, multimodal agents that directly interact with the apps humans use, as users must be able to trust an agent to complete a given task. Current evaluations rely on fixed environments---often clones of existing apps--- which are limite…

Cited by 0SourcecodeScholar
2024

Hypothesis Testing the Circuit Hypothesis in LLMs

NeurIPS 2024poster

Large language models (LLMs) demonstrate surprising capabilities, but we do not understand how they are implemented. One hypothesis suggests that these capabilities are primarily executed by small subnetworks within the LLM, known as circuits. But how can we evaluate this hypothesis? In this paper,…

2024

On the Misspecification of Linear Assumptions in Synthetic Controls

AISTATS 2024poster

The synthetic control (SC) method is popular for estimating causal effects from observational panel data. It rests on a crucial assumption that we can write the treated unit as a linear combination of the untreated units. In practice, this assumption may not hold, and when violated, the resulting SC…

Cited by 2SourcePDFScholar
2023

An Invariant Learning Characterization of Controlled Text Generation

ACL 2023long

Controlled generation refers to the problem of creating text that contains stylistic or semantic attributes of interest. Many approaches reduce this problem to training a predictor of the desired attribute. For example, researchers hoping to deploy a large language model to produce non-toxic content…

2023

Data Augmentations for Improved (Large) Language Model Generalization

NeurIPS 2023poster

The reliance of text classifiers on spurious correlations can lead to poor generalization at deployment, raising concerns about their use in safety-critical domains such as healthcare. In this work, we propose to use counterfactual data augmentation, guided by knowledge of the causal structure of th…

Cited by 9SourcePDFScholar
2022

On the Assumptions of Synthetic Control Methods

AISTATS 2022poster

Synthetic control (SC) methods have been widely applied to estimate the causal effect of large-scale interventions, e.g., the state-wide effect of a change in policy. The idea of synthetic controls is to approximate one unit’s counterfactual outcomes using a weighted combination of some other units’…

2021

Invariant representation learning for treatment effect estimation

UAI 2021poster

The defining challenge for causal inference from observational data is the presence of ‘confounders’, covariates that affect both treatment assignment and the outcome. To address this challenge, practitioners collect and adjust for the covariates, hoping that they adequately correct for confounding.…

2019

Adapting Neural Networks for the Estimation of Treatment Effects

NeurIPS 2019poster

This paper addresses the use of neural networks for the estimation of treatment effects from observational data. Generally, estimation proceeds in two stages. First, we fit models for the expected outcome and the probability of treatment (propensity score). Second, we plug these fitted models into a d…