Results 11 to 20 of about 116,308 (181)

Improving K-Nearest Neighbor Approaches for Density-Based Pixel Clustering in Hyperspectral Remote Sensing Images

open access: yesRemote Sensing, 2020
We investigated nearest-neighbor density-based clustering for hyperspectral image analysis. Four existing techniques were considered that rely on a K-nearest neighbor (KNN) graph to estimate local density and to propagate labels through algorithm ...
Claude Cariou   +2 more
doaj   +1 more source

About Regular Graphs

open access: yesFormalized Mathematics, 2023
Abstract In this article regular graphs, both directed and undirected, are formalized in the Mizar system [7], [2], based on the formalization of graphs as described in [10]. The handshaking lemma is also proven.
openaire   +2 more sources

Regular colorings in regular graphs

open access: yesDiscussiones Mathematicae Graph Theory, 2020
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Bernshteyn, Anton   +6 more
openaire   +3 more sources

On the Multiplicative Regularization of Graph Laplacians on Closed and Open Structures With Applications to Spectral Partitioning

open access: yesIEEE Access, 2014
A new regularization technique for graph Laplacians arising from triangular meshes of closed and open structures is presented. The new technique is based on the analysis of graph Laplacian spectrally equivalent operators in terms of Sobolev norms and on ...
Rajendra Mitharwal   +1 more
doaj   +1 more source

INDUCED REGULAR PERFECT GRAPHS

open access: yesSouth East Asian J. of Mathematics and Mathematical Sciences, 2023
A graph G is said to be R-perfect if, for all induced subgraphs H of G, the induced regular independence number of each induced subgraph H is equal to its corresponding induced regular cover. Here, the induced regular independence number is the maximum number of vertices in H such that no two belong to the same induced regular subgraph in H, and the ...
Jayakumar, Gokul S., V., Sangeetha
openaire   +2 more sources

Artist Similarity for Everyone: A Graph Neural Network Approach

open access: yesTransactions of the International Society for Music Information Retrieval, 2022
Artist similarity plays an important role in organizing, understanding, and subsequently, facilitating discovery in large collections of music. In this paper, we present a hybrid approach to computing similarity between artists using graph neural ...
Filip Korzeniowski   +2 more
doaj   +1 more source

Covering Regular Graphs

open access: yesJournal of Combinatorial Theory, Series B, 1997
A covering projection from a graph \(G\) onto a graph \(H\) is a ``local isomorphism'': a mapping from the vertex set of \(G\) onto the vertex set of \(H\) such that, for every \(v\in V(G)\), the neighborhood of \(v\) is mapped bijectively onto the neighborhood (in \(H\)) of the image of \(v\).
Kratochvı́l, Jan   +2 more
openaire   +1 more source

Abnormal Electricity Behavior Recognition of Graph Regularization Nonlinear Ridge Regression Model [PDF]

open access: yesJisuanji gongcheng, 2018
For the detection of abnormal electricity behavior by users,power companies usually adopt manual inspection methods,however,this method requires a lot of manpower and material resources,and is influened by subjective factors.Therefore,an abnormal ...
ZHANG Xiaofei,GENG Juncheng,SUN Yubao
doaj   +1 more source

Girth-regular graphs

open access: yesArs Mathematica Contemporanea, 2019
20 pages, 6 ...
Potočnik, Primož, Vidali, Janoš
openaire   +5 more sources

Distance-Regular Graphs

open access: yesThe Electronic Journal of Combinatorics, 2016
This is a survey of distance-regular graphs. We present an introduction to distance-regular graphs for the reader who is unfamiliar with the subject, and then give an overview of some developments in the area of distance-regular graphs since the monograph 'BCN' [Brouwer, A.E., Cohen, A.M., Neumaier, A., Distance-Regular Graphs, Springer-Verlag, Berlin,
Edwin R. van Dam   +2 more
openaire   +4 more sources

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