Homomorphisms are a good basis for counting small subgraphs

R Curticapean, H Dell, D Marx - Proceedings of the 49th Annual ACM …, 2017 - dl.acm.org
We introduce graph motif parameters, a class of graph parameters that depend only on the
frequencies of constant-size induced subgraphs. Classical works by Lovász show that many …

Finding, minimizing, and counting weighted subgraphs

V Vassilevska, R Williams - Proceedings of the forty-first annual ACM …, 2009 - dl.acm.org
For a pattern graph H on k nodes, we consider the problems of finding and counting the
number of (not necessarily induced) copies of H in a given large graph G on n nodes, as …

Complexity of counting subgraphs: Only the boundedness of the vertex-cover number counts

R Curticapean, D Marx - 2014 IEEE 55th Annual Symposium …, 2014 - ieeexplore.ieee.org
For a class C of graphs,# Sub (C) is the counting problem that, given a graph H from C and
an arbitrary graph G, asks for the number of subgraphs of G isomorphic to H. It is known that …

Counting stars and other small subgraphs in sublinear-time

M Gonen, D Ron, Y Shavitt - SIAM Journal on Discrete Mathematics, 2011 - SIAM
Detecting and counting the number of copies of certain subgraphs (also known as network
motifs or graphlets) is motivated by applications in a variety of areas ranging from biology to …

How to count triangles, without seeing the whole graph

SK Bera, C Seshadhri - Proceedings of the 26th ACM SIGKDD …, 2020 - dl.acm.org
Triangle counting is a fundamental problem in the analysis of large graphs. There is a rich
body of work on this problem, in varying streaming and distributed models, yet all these …

Linear time subgraph counting, graph degeneracy, and the chasm at size six

SK Bera, N Pashanasangi, C Seshadhri - arxiv preprint arxiv:1911.05896, 2019 - arxiv.org
We consider the problem of counting all $ k $-vertex subgraphs in an input graph, for any
constant $ k $. This problem (denoted sub-cnt $ _k $) has been studied extensively in both …

Counting subgraphs in degenerate graphs

SK Bera, L Gishboliner, Y Levanzov… - ACM Journal of the …, 2022 - dl.acm.org
We consider the problem of counting the number of copies of a fixed graph H within an input
graph G. This is one of the most well-studied algorithmic graph problems, with many …

Faster algorithms for finding and counting subgraphs

FV Fomin, D Lokshtanov, V Raman, S Saurabh… - Journal of Computer and …, 2012 - Elsevier
In the Subgraph Isomorphism problem we are given two graphs F and G on k and n vertices
respectively as an input, and the question is whether there exists a subgraph of G …

Counting and detecting small subgraphs via equations

M Kowaluk, A Lingas, EM Lundell - SIAM Journal on Discrete Mathematics, 2013 - SIAM
We present a general technique for detecting and counting small subgraphs. It consists of
forming special linear combinations of the numbers of occurrences of different induced …

Improving Schroeppel and Shamir's algorithm for subset sum via orthogonal vectors

J Nederlof, K Węgrzycki - Proceedings of the 53rd Annual ACM SIGACT …, 2021 - dl.acm.org
We present an O∗(20.5 n) time and O∗(20.249999 n) space randomized algorithm for
solving worst-case Subset Sum instances with n integers. This is the first improvement over …