4 citations · 28 across the 18 of their papers we have counts for
13 papers · 1 filter
Efficient Algorithms for Online Subadditive Combinatorial Allocations
Calum MacRury, Rian Neogi, Kanstantsin Pashkovich +4
For the online combinatorial allocation problem with subadditive valuations, Correa and Cristi (STOC 2023) proved the existence of a -competitive online algorithm, improving on…
Prophet Inequalities and Online Contention Resolution for Matchoids
Calum MacRury, Pranav Nuti, Jan Vondrák
In the classical prophet inequality, an algorithm observes a sequence of random variables with known distributions in an online fashion, and it must select one of the random variab…
Approximation Algorithms for Action-Reward Query-Commit Matching
Mahsa Derakhshan, Andisheh Ghasemi, Calum MacRury
Matching problems under uncertainty arise in applications such as kidney exchange, hiring, and online marketplaces. A decision-maker must sequentially explore potential matches und…
Forward-backward Contention Resolution Schemes for Fair Rationing
Will Ma, Calum MacRury, Cliff Stein
We use contention resolution schemes (CRS) to derive algorithms for the fair rationing of a single resource when agents have stochastic demands. We aim to provide ex-ante guarantee…
Proportionally Fair Matching via Randomized Rounding
Sharmila Duppala, Nathaniel Grammel, Juan Luque +2
Given an edge-colored graph, the goal of the proportional fair matching problem is to find a maximum weight matching while ensuring proportional representation (with respect to the…
Online Matching and Contention Resolution for Edge Arrivals with Vanishing Probabilities
Will Ma, Calum MacRury, Pranav Nuti
We study the performance of sequential contention resolution and matching algorithms on random graphs with vanishing edge probabilities. When the edges of the graph are processed i…
Random-order Contention Resolution via Continuous Induction: Tightness for Bipartite Matching under Vertex Arrivals
Calum MacRury, Will Ma
We introduce a new approach for designing Random-order Contention Resolution Schemes (RCRS) via exact solution in continuous time. Given a function ,…
Online Bipartite Matching in the Probe-Commit Model
Allan Borodin, Calum MacRury
We consider the classical online bipartite matching problem in the probe-commit model. In this problem, when an online vertex arrives, its edges must be probed to determine if they…
On (Random-order) Online Contention Resolution Schemes for the Matching Polytope of (Bipartite) Graphs
Calum MacRury, Will Ma, Nathaniel Grammel
Online Contention Resolution Schemes (OCRS's) represent a modern tool for selecting a subset of elements, subject to resource constraints, when the elements are presented to the al…
Improved Guarantees for Offline Stochastic Matching via New Ordered Contention Resolution Schemes
Brian Brubach, Nathaniel Grammel, Will Ma +2
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…
Greedy Approaches to Online Stochastic Matching
Allan Borodin, Calum MacRury, Akash Rakheja
Within the context of stochastic probing with commitment, we consider the online stochastic matching problem; that is, the one-sided online bipartite matching problem where edges a…
Bipartite Stochastic Matching: Online, Random Order, and I.I.D. Models
Allan Borodin, Calum MacRury, Akash Rakheja
Within the context of stochastic probing with commitment, we consider the online stochastic matching problem; that is, the one sided online bipartite matching problem where edges a…
Probabilistically Faulty Searching on a Half-Line
Anthony Bonato, Konstantinos Georgiou, Calum MacRury +1
We study -Faulty Search, a variant of the classic cow-path optimization problem, where a unit speed robot searches the half-line (or -ray) for a hidden item. The searcher is…