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Phebe Vayanos

5 accepted papers

2025

Mixed-Feature Logistic Regression Robust to Distribution Shifts

AISTATS 2025poster

Logistic regression models are widely used in the social and behavioral sciences and in high-stakes domains, due to their simplicity and interpretability properties. At the same time, such domains are permeated by distribution shifts, where the distribution generating the data changes between traini…

Cited by 0SourcecodeScholar
2024

Learning Fair Policies for Multi-Stage Selection Problems from Observational Data

AAAI 2024technical

We consider the problem of learning fair policies for multi-stage selection problems from observational data. This problem arises in several high-stakes domains such as company hiring, loan approval, or bail decisions where outcomes (e.g., career success, loan repayment, recidivism) are only observe…

Cited by 3SourcePDFScholar
2023

Fairness in Contextual Resource Allocation Systems: Metrics and Incompatibility Results

AAAI 2023technical

We study critical systems that allocate scarce resources to satisfy basic needs, such as homeless services that provide housing. These systems often support communities disproportionately affected by systemic racial, gender, or other injustices, so it is crucial to design these systems with fairness…

Cited by 10SourcePDFScholar
2021

Fair Influence Maximization: a Welfare Optimization Approach

AAAI 2021technical

Several behavioral, social, and public health interventions, such as suicide/HIV prevention or community preparedness against natural disasters, leverage social network information to maximize outreach. Algorithmic influence maximization techniques have been proposed to aid with the choice of ``peer…

Cited by 65SourcePDFScholar
2019

Exploring Algorithmic Fairness in Robust Graph Covering Problems

NeurIPS 2019poster

Fueled by algorithmic advances, AI algorithms are increasingly being deployed in settings subject to unanticipated challenges with complex social effects. Motivated by real-world deployment of AI driven, social-network based suicide prevention and landslide risk management interventions, this paper…