Results 41 to 50 of about 1,372,330 (300)

Benchmark graphs for testing community detection algorithms. [PDF]

open access: yesPhysical review. E, Statistical, nonlinear, and soft matter physics, 2008
Community structure is one of the most important features of real networks and reveals the internal organization of the nodes. Many algorithms have been proposed but the crucial issue of testing, i.e., the question of how good an algorithm is, with ...
Andrea Lancichinetti   +2 more
semanticscholar   +1 more source

A Generalized Information-Theoretic Approach for Bounding the Number of Independent Sets in Bipartite Graphs

open access: yesEntropy, 2021
This paper studies the problem of upper bounding the number of independent sets in a graph, expressed in terms of its degree distribution. For bipartite regular graphs, Kahn (2001) established a tight upper bound using an information-theoretic approach ...
Igal Sason
doaj   +1 more source

Efficient and Robust Approximate Nearest Neighbor Search Using Hierarchical Navigable Small World Graphs [PDF]

open access: yesIEEE Transactions on Pattern Analysis and Machine Intelligence, 2016
We present a new approach for the approximate K-nearest neighbor search based on navigable small world graphs with controllable hierarchy (Hierarchical NSW, HNSW).
Yury Malkov, Dmitry A. Yashunin
semanticscholar   +1 more source

Packing Smaller Graphs into a Graph

open access: yesDiscrete Mathematics, 1989
AbstractLet G be a graph.
Shin-ichi Tokunaga   +2 more
openaire   +2 more sources

Embedding Graphs into Embedded Graphs [PDF]

open access: yesAlgorithmica, 2020
A (possibly denerate) drawing of a graph $G$ in the plane is approximable by an embedding if it can be turned into an embedding by an arbitrarily small perturbation. We show that testing, whether a straight-line drawing of a planar graph $G$ in the plane is approximable by an embedding, can be carried out in polynomial time, if a desired embedding of ...
openaire   +5 more sources

Graph saturation in multipartite graphs [PDF]

open access: yesJournal of Combinatorics, 2016
16 pages, 4 ...
Florian Pfender   +3 more
openaire   +3 more sources

EvolveGCN: Evolving Graph Convolutional Networks for Dynamic Graphs [PDF]

open access: yesAAAI Conference on Artificial Intelligence, 2019
Graph representation learning resurges as a trending research subject owing to the widespread use of deep learning for Euclidean data, which inspire various creative designs of neural networks in the non-Euclidean domain, particularly graphs.
A. Pareja   +7 more
semanticscholar   +1 more source

Graph equations for line graphs, total graphs, middle graphs and quasi-total graphs

open access: yesDiscrete Mathematics, 1984
AbstractLet G be a graph with vertex-set V(G) and edge-set X(G). Let L(G) and T(G) denote the line graph and total graph of G. The middle graph M(G) of G is an intersection graph Ω(F) on the vertex-set V(G) of any graph G. Let F = V′(G) ∪ X(G) where V′(G) indicates the family of all one-point subsets of the set V(G), then M(G) = Ω(F).The quasi-total ...
D. V. S Sastry, B.Syam Prasad Raju
openaire   +2 more sources

Dependencies for Graphs [PDF]

open access: yesProceedings of the 36th ACM SIGMOD-SIGACT-SIGAI Symposium on Principles of Database Systems, 2017
This article proposes a class of dependencies for graphs, referred to as graph entity dependencies (GEDs). A GED is defined as a combination of a graph pattern and an attribute dependency. In a uniform format, GEDs can express graph functional dependencies with constant literals to catch inconsistencies, and keys ...
Fan, Wenfei, Lu, Ping
openaire   +3 more sources

Misjudgment of interrupted time-series graphs due to serial dependence: Replication of Matyas and Greenwood (1990)

open access: yesJudgment and Decision Making, 2021
Interrupted time-series graphs are often judged by eye. Such a graph might show, for example, patient symptom severity (y) on each of several days (x) before and after a treatment was implemented (interruption).
Anthony J. Bishara   +2 more
doaj   +1 more source

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