Results 21 to 30 of about 1,481,196 (275)

Metric Dimension for Gabriel Unit Disk Graphs is NP-Complete [PDF]

open access: yes, 2013
We show that finding a minimal number of landmark nodes for a unique virtual addressing by hop-distances in wireless ad-hoc sensor networks is NP-complete even if the networks are unit disk graphs that contain only Gabriel edges.
J. Díaz, P. Bose, R. Tamassia
core   +1 more source

Lossy gossip and composition of metrics [PDF]

open access: yes, 2014
We study the monoid generated by n-by-n distance matrices under tropical (or min-plus) multiplication. Using the tropical geometry of the orthogonal group, we prove that this monoid is a finite polyhedral fan of dimension n(n-1)/2, and we compute the ...
Brouwer, Andries E.   +2 more
core   +4 more sources

Monitoring of Chlorophylls during the Maturation Stage of Plums by Multivariate Calibration of RGB Data from Digital Images

open access: yesChemosensors, 2022
The methodology developed in this study was based on digital imaging processing of plums harvested in eight different weeks during their ripening process. Mean RGB data, histograms, and matrices of RGB data were used to characterise the ripening stage of
Jaime Domínguez-Manzano   +3 more
doaj   +1 more source

Spectrum of Sizes for Perfect Deletion-Correcting Codes [PDF]

open access: yes, 2010
One peculiarity with deletion-correcting codes is that perfect $t$-deletion-correcting codes of the same length over the same alphabet can have different numbers of codewords, because the balls of radius $t$ with respect to the Levenshte\u{\i}n distance ...
Alan C. H. Ling   +15 more
core   +1 more source

A Two-Coordinate Nickel Imido Complex That Effects C−H Amination [PDF]

open access: yes, 2011
An exceptionally low coordinate nickel imido complex, (IPr*)Ni═N(dmp) (2) (dmp = 2,6-dimesitylphenyl), has been prepared by the elimination of N_2 from a bulky aryl azide in its reaction with (IPr*)Ni(η^6-C_7H_8) (1).
Cundari, Thomas R.   +3 more
core   +2 more sources

On the distance spectra of m-generation n-prism graph

open access: yesAKCE International Journal of Graphs and Combinatorics, 2022
The distance matrix of a simple connected graph G is [Formula: see text] where dij is the length of a shortest path between the ith and jth vertices of G. Eigenvalues of D(G) are called the distance eigenvalues of G. The m-generation n-prism graph or (m,
Fouzul Atik   +2 more
doaj   +1 more source

Pitch Processing in Children with Williams Syndrome: Relationships between Music and Prosody Skills

open access: yesBrain Sciences, 2014
Williams syndrome (WS), a genetic neurodevelopmental disorder, has been taken as evidence that music and language constitute separate modules. This research focused on the linguistic component of prosody and aimed to assess whether relationships exist ...
Pastora Martínez-Castilla   +1 more
doaj   +1 more source

Connectivism Theory in Safety and Health Education in Classical Universities

open access: yesОсвітологічний дискурс, 2023
Planet Earth, humanity in general and the education system in particular, in the first quarter of the XXI century have faced a large number of problems and situations that require regulation. The use of modern technologies based on connectivism theory in
Світлана Гвоздій   +2 more
doaj   +1 more source

Average Distance Queries through Weighted Samples in Graphs and Metric Spaces: High Scalability with Tight Statistical Guarantees [PDF]

open access: yes, 2015
The average distance from a node to all other nodes in a graph, or from a query point in a metric space to a set of points, is a fundamental quantity in data analysis.
Chechik, Shiri   +2 more
core   +2 more sources

Open Innovation during Web Surfing: Topics of Interest and Rejection by Latin American College Students

open access: yesJournal of Open Innovation: Technology, Market and Complexity, 2021
The university is currently involved in complex processes of open innovation through permanent dialogue with institutions and companies in the economic, social, and political fields. Professors, researchers, students, and other members of the institution
José Gómez-Galán   +3 more
doaj   +1 more source

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