Fast and perfect sampling of subgraphs and polymer systems

A Blanca, S Cannon, W Perkins - ACM Transactions on Algorithms, 2024 - dl.acm.org
We give an efficient perfect sampling algorithm for weighted, connected induced subgraphs
(or graphlets) of rooted, bounded degree graphs. Our algorithm utilizes a vertex-percolation …

Faster motif counting via succinct color coding and adaptive sampling

M Bressan, S Leucci, A Panconesi - ACM Transactions on Knowledge …, 2021 - dl.acm.org
We address the problem of computing the distribution of induced connected subgraphs, aka
graphlets or motifs, in large graphs. The current state-of-the-art algorithms estimate the motif …

Efficient and near-optimal algorithms for sampling small connected subgraphs

M Bressan - ACM Transactions on Algorithms, 2023 - dl.acm.org
We study the following problem: Given an integer k≥ 3 and a simple graph G, sample a
connected induced k-vertex subgraph of G uniformly at random. This is a fundamental graph …

Making mean-estimation more efficient using an MCMC trace variance approach: DynaMITE

C Cousins, S Haddadan, E Upfal - arXiv preprint arXiv:2011.11129, 2020 - arxiv.org
We introduce a novel statistical measure for MCMC-mean estimation, the inter-trace
variance ${\rm trv}^{(\tau_ {rel})}({\cal M}, f) $, which depends on a Markov chain ${\cal M} …

Efficient and near-optimal algorithms for sampling connected subgraphs

M Bressan - Proceedings of the 53rd Annual ACM SIGACT …, 2021 - dl.acm.org
We study the graphlet sampling problem: given an integer k≥ 3 and a graph G=(V, E),
sample a connected induced k-node subgraph of G (also called k-graphlet) uniformly at …

DeMEtRIS: Counting (near)-Cliques by Crawling

SK Bera, J Choudhari, S Haddadan… - Proceedings of the …, 2023 - dl.acm.org
We study the problem of approximately counting cliques and near cliques in a graph, where
the access to the graph is only available through crawling its vertices; thus typically seeing …

Real-world networks are not always fast mixing

Y Qi, W Xu, L Zhu, Z Zhang - The Computer Journal, 2021 - academic.oup.com
The mixing time of random walks on a graph has found broad applications across both
theoretical and practical aspects of computer science, with the application effects depending …

The wedge picking model: A theoretical analysis of graph evolution caused by triadic closure and algorithmic implications

S Ahmadian, S Haddadan - Journal of Strategic Innovation and …, 2021 - articlearchives.co
Social networks have become an inseparable part of human life and processing them in an
efficient manner is a top priority in the study of networks. These networks are highly dynamic …

[PDF][PDF] Faster algorithms for sampling connected induced subgraphs

M Bressan - CoRR, abs/2007.12102, 2020 - qiniu.pattern.swarma.org
We consider the following problem: given a graph G=(V, E) and an integer k, sample a
connected induced k-node subgraph of G (also called k-graphlet) uniformly at random. The …