Results 41 to 50 of about 27,298 (312)

Weighted enclosing subgraph-based link prediction for complex network

open access: yesEURASIP Journal on Wireless Communications and Networking, 2022
Link prediction is a fundamental research issue in complex network, which can reveal the potential relationships between users. Most of link prediction algorithms are heuristic and based on topology structure.
Weiwei Yuan   +6 more
doaj   +1 more source

Subgraph Matching Cardinality Estimation Combining Heuristic and Boosting Method [PDF]

open access: yesJisuanji kexue yu tansuo, 2022
Attributed to its innate advantage in modeling relational information, graph data have been widely leveraged in various applications including social network, knowledge representation, etc. Compared with traditional relational database systems, primitive
HOU Wenzhe, ZHAO Xiang
doaj   +1 more source

Maximal chordal subgraphs

open access: yesCombinatorics, Probability and Computing, 2023
AbstractA chordal graph is a graph with no induced cycles of length at least $4$ . Let $f(n,m)$ be the maximal integer such that every graph with $n$ vertices and $m$ edges has a chordal subgraph with at least $f(n,m)$ edges. In 1985 Erdős and Laskar posed the problem of estimating $f(n,m)$ .
Lior Gishboliner, Benny Sudakov
openaire   +2 more sources

Distributed Representations of Subgraphs

open access: yes2017 IEEE International Conference on Data Mining Workshops (ICDMW), 2017
9 pages, 7 ...
Bijaya Adhikari   +3 more
openaire   +2 more sources

A coding method for efficient subgraph querying on vertex- and edge-labeled graphs. [PDF]

open access: yesPLoS ONE, 2014
Labeled graphs are widely used to model complex data in many domains, so subgraph querying has been attracting more and more attention from researchers around the world.
Lei Zhu   +5 more
doaj   +1 more source

Capturing Topology in Graph Pattern Matching [PDF]

open access: yes, 2011
Graph pattern matching is often defined in terms of subgraph isomorphism, an np-complete problem. To lower its complexity, various extensions of graph simulation have been considered instead.
Huai, Jinpeng   +9 more
core   +1 more source

Subgraph-aware Few-Shot Inductive Link Prediction via Meta-Learning

open access: yes, 2022
Link prediction for knowledge graphs aims to predict missing connections between entities. Prevailing methods are limited to a transductive setting and hard to process unseen entities.
Mai, S, Zheng, S, Yang, Y, Hu, H, Sun, Y
core   +1 more source

Supersaturation for Subgraph Counts

open access: yesGraphs and Combinatorics, 2022
The classic extremal problem is that of computing the maximum number of edges in an $F$-free graph. In the case where $F=K_{r+1}$, the extremal number was determined by Turán. Later results, known as supersaturation theorems, proved that in a graph containing more edges than the extremal number, there must also be many copies of $K_{r+1}$.
Jonathan Cutler   +2 more
openaire   +3 more sources

Connected Tropical Subgraphs in Vertex-Colored Graphs [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2016
A subgraph of a vertex-colored graph is said to be tropical whenever it contains each color of the graph. In this work we study the problem of finding a minimal connected tropical subgraph.
Jean-Alexandre Anglès d'Auriac   +5 more
doaj   +1 more source

Testing first-order properties for subclasses of sparse graphs [PDF]

open access: yes, 2013
We present a linear-time algorithm for deciding first-order (FO) properties in classes of graphs with bounded expansion, a notion recently introduced by Nešetřil and Ossona de Mendez.
Thomas, Robin   +2 more
core   +1 more source

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