Online matching: A brief survey

Z Huang, ZG Tang, D Wajc - ACM SIGecom Exchanges, 2024 - dl.acm.org
Matching, capturing allocation of items to unit-demand buyers, or tasks to workers, or pairs of
collaborators, is a central problem in economics. Indeed, the growing prevalence of …

Edge-weighted online bipartite matching

M Fahrbach, Z Huang, R Tao, M Zadimoghaddam - Journal of the ACM, 2022 - dl.acm.org
Online bipartite matching is one of the most fundamental problems in the online algorithms
literature. Karp, Vazirani, and Vazirani (STOC 1990) gave an elegant algorithm for …

Online stochastic max-weight matching: prophet inequality for vertex and edge arrival models

T Ezra, M Feldman, N Gravin, ZG Tang - … of the 21st ACM Conference on …, 2020 - dl.acm.org
We provide prophet inequality algorithms for online weighted matching in general (non-
bipartite) graphs, under two well-studied arrival models, namely edge arrival and vertex …

[PDF][PDF] Online edge coloring is (nearly) as easy as offline

J Blikstad, O Svensson, R Vintan, D Wajc - Proceedings of the 56th …, 2024 - dl.acm.org
The classic theorem of Vizing (Diskret. Analiz.'64) asserts that any graph of maximum
degree Δ can be edge colored (offline) using no more than Δ+ 1 colors (with Δ being a trivial …

Deterministic (1+𝜀)-approximate maximum matching with poly(1/𝜀) passes in the semi-streaming model and beyond

M Fischer, S Mitrović, J Uitto - Proceedings of the 54th Annual ACM …, 2022 - dl.acm.org
We present a deterministic (1+ ε)-approximate maximum matching algorithm in poly (1/ε)
passes in the semi-streaming model, solving the long-standing open problem of breaking …

Online stochastic max-weight bipartite matching: Beyond prophet inequalities

C Papadimitriou, T Pollner, A Saberi… - Proceedings of the 22nd …, 2021 - dl.acm.org
The rich literature on online Bayesian selection problems has long focused on so-called
prophet inequalities, which compare the gain of an online algorithm to that of a" prophet" …

The greedy algorithm is not optimal for on-line edge coloring

A Saberi, D Wajc - 48th International Colloquium on Automata …, 2021 - drops.dagstuhl.de
Nearly three decades ago, Bar-Noy, Motwani and Naor showed that no online edge-coloring
algorithm can edge color a graph optimally. Indeed, their work, titled" the greedy algorithm is …

Rounding dynamic matchings against an adaptive adversary

D Wajc - Proceedings of the 52nd Annual ACM SIGACT …, 2020 - dl.acm.org
We present a new dynamic matching sparsification scheme. From this scheme we derive a
framework for dynamically rounding fractional matchings against adaptive adversaries …

Max-weight online stochastic matching: Improved approximations against the online benchmark

M Braverman, M Derakhshan… - Proceedings of the 23rd …, 2022 - dl.acm.org
In this paper, we study max-weight stochastic matchings on online bipartite graphs under
both vertex and edge arrivals. We focus on designing polynomial time approximation …

A nonparametric framework for online stochastic matching with correlated arrivals

A Aouad, W Ma - arxiv preprint arxiv:2208.02229, 2022 - arxiv.org
The design of online algorithms for matching markets and revenue management settings is
usually bound by the stochastic prior that the demand process is formed by a fixed-length …