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A Survey on the Densest Subgraph Problem and Its Variants
Data Structures and Algorithms · Submitted 25 Mar 2023
abstract compiled · 2026-09-23 · no language-model review
The authors' main claim This survey provides a deep overview of the fundamental results and an exhaustive coverage of the many variants proposed in the literature, with a special attention to the most recent results.
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The abstract, sentence by sentence
The Densest Subgraph Problem requires to find, in a given graph, a subset of vertices whose induced subgraph maximizes a measure of density. The problem has received a great deal of attention in the algorithmic literature since the early 1970s, with many variants proposed and many applications built on top of this basic definition. Recent years have witnessed a revival of research interest in this problem with several important contributions, including some groundbreaking results, published in 2022 and 2023. This survey provides a deep overview of the fundamental results and an exhaustive coverage of the many variants proposed in the literature, with a special attention to the most recent results. The survey also presents a comprehensive overview of applications and discusses some interesting open problems for this evergreen research topic.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | The Densest Subgraph Problem requires to find, in a given graph, a subset of vertices whose induced subgraph maximizes a measure of density. | background 1.00 | 0.03 | 0.05 | asserted 1.00 |
| s1 | The problem has received a great deal of attention in the algorithmic literature since the early 1970s, with many variants proposed and many applications built on top of this basic definition. | background 1.00 | 0.03 | 0.03 | asserted 1.00 |
| s2 | Recent years have witnessed a revival of research interest in this problem with several important contributions, including some groundbreaking results, published in 2022 and 2023. | background 0.99 | 0.05 | 0.07 | asserted 1.00 |
| s3 | This survey provides a deep overview of the fundamental results and an exhaustive coverage of the many variants proposed in the literature, with a special attention to the most recent results. | contribution 1.00 | 0.71 | 0.15 | asserted 1.00 |
| s4 | The survey also presents a comprehensive overview of applications and discusses some interesting open problems for this evergreen research topic. | contribution 0.95 | 0.60 | 0.10 | asserted 1.00 |
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The paper
Original abstract
The Densest Subgraph Problem requires to find, in a given graph, a subset of vertices whose induced subgraph maximizes a measure of density. The problem has received a great deal of attention in the algorithmic literature since the early 1970s, with many variants proposed and many applications built on top of this basic definition. Recent years have witnessed a revival of research interest in this problem with several important contributions, including some groundbreaking results, published in 2022 and 2023. This survey provides a deep overview of the fundamental results and an exhaustive coverage of the many variants proposed in the literature, with a special attention to the most recent results. The survey also presents a comprehensive overview of applications and discusses some interesting open problems for this evergreen research topic.
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How the literature uses it
13 arXiv papers cite this in 19 sentences
Papers citing it · 5 sentences without a confident label
Cites it as background 12 papers
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While the problem of finding the densest subgraph in simple graphs is a well-studied problem [ref] , finding dense subgraphs from multiplex networks recently attracts attention [ref] .
A Unified Core Structure in Multiplex Networks: From Finding the Densest Subgraph to Modeling User Engagement · Introduction · 0.88
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This problem has been studied in the (centralized) private [ref] , LEDP [ref] , dynamic [ref] , streaming [ref] , and distributed [ref] settings; for a recent survey on densest subgraph and its variants, see [ref] .
Near-Optimal Differentially Private Graph Algorithms via the Multidimensional AboveThreshold Mechanism · Introduction · 1.00
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As a fundamental problem in graph mining, the densest subgraph discovery (DSD) problem aims to discover a very “dense” subgraph from a given graph [ref] .
In-depth Analysis of Densest Subgraph Discovery in a Unified Framework · Introduction · 0.95
What it cites · 8 sentences without a confident label
Compares with 2 papers
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Christiansen et al. [ref] improved the result of Sawlani and Wang [ref] by giving a deterministic algorithm providing a $(1+ϵ)$-approximation for DSP, with $((log^2 n logρ^*) / ϵ^4)$ worst-case time per edge insertion or deletion, where $ρ^*$ is the density of the densest subgraph, and $(1)$ worst-case query time.
Adaptive Out-Orientations with Applications · Streaming and Distributed · 0.87
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Independently from Christiansen et al. [ref] , Chekuri and Quanrud [ref] also improved the result of Sawlani and Wang [ref] by giving a deterministic algorithm providing a $(1+ϵ)$-approximation for DSP, with $(log^2 n / ϵ^4)$ amortized time and $((log^3 n loglogn) / ϵ^6)$ worst-case time per edge insertion or deletion, and $(1)$ worst-case query time.
$(1-\epsilon)$-approximate fully dynamic densest subgraph: linear space and faster update time · Streaming and Distributed · 0.92
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