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Brian Brubach

8 accepted papers

2024

Implications of Distance over Redistricting Maps: Central and Outlier Maps

AAAI 2024technical

In representative democracy, a redistricting map is chosen to partition an electorate into districts which each elects a representative. A valid redistricting map must satisfy a collection of constraints such as being compact, contiguous, and of almost-equal population. However, these constraints ar…

Cited by 2SourcePDFScholar
2021

Fairness, Semi-Supervised Learning, and More: A General Framework for Clustering with Stochastic Pairwise Constraints

AAAI 2021technical

Metric clustering is fundamental in areas ranging from Combinatorial Optimization and Data Mining, to Machine Learning and Operations Research. However, in a variety of situations we may have additional requirements or knowledge, distinct from the underlying metric, regarding which pairs of points s…

2021

Follow Your Star: New Frameworks for Online Stochastic Matching with Known and Unknown Patience

AISTATS 2021poster

We study several generalizations of the Online Bipartite Matching problem. We consider settings with stochastic rewards, patience constraints, and weights (considering both vertex- and edge-weighted variants). We introduce a stochastic variant of the patience-constrained problem, where the patience…

Cited by 14SourcePDFScholar
2021

Improved Guarantees for Offline Stochastic Matching via new Ordered Contention Resolution Schemes

NeurIPS 2021poster

Matching is one of the most fundamental and broadly applicable problems across many domains. In these diverse real-world applications, there is often a degree of uncertainty in the input which has led to the study of stochastic matching models. Here, each edge in the graph has a known, independent p…

Cited by 25SourcePDFScholar
2021

It's COMPASlicated: The Messy Relationship between RAI Datasets and Algorithmic Fairness Benchmarks

NeurIPS 2021poster

Risk assessment instrument (RAI) datasets, particularly ProPublica’s COMPAS dataset, are commonly used in algorithmic fairness papers due to benchmarking practices of comparing algorithms on datasets used in prior work. In many cases, this data is used as a benchmark to demonstrate good performance…

Cited by 125SourceScholar
2020

A Pairwise Fair and Community-preserving Approach to k-Center Clustering

ICML 2020poster

Clustering is a foundational problem in machine learning with numerous applications. As machine learning increases in ubiquity as a backend for automated systems, concerns about fairness arise. Much of the current literature on fairness deals with discrimination against protected classes in supervis…