Results 1 to 10 of about 2,606,351 (285)

Node-node distance distribution for growing networks

TASK Quarterly, 2003
We present the simulation of the time evolution of the distance matrix. The result is the node-node distance distribution for various kinds of networks. For the exponential trees, analytical formulas are derived for the moments of the distance distribution.
KRZYSZTOF MALARZ, JUSTYNA KARPIŃSKA, ALEKSANDER KARDAS, KRZYSZTOF KUŁAKOWSKI   +3 more
openaire   +3 more sources

New directions in mapping the Earth’s surface with citizen science and generative AI

iScience
Summary: As more satellite imagery has become openly available, efforts in mapping the Earth’s surface have accelerated. Yet the accuracy of these maps is still limited by the lack of in situ data needed to train machine learning algorithms.
Linda See, Qingqing Chen, Andrew Crooks, Juan Carlos Laso Bayas, Dilek Fraisl, Steffen Fritz, Ivelina Georgieva, Gerid Hager, Martin Hofer, Myroslava Lesiv, Žiga Malek, Milutin Milenković, Inian Moorthy, Fernando Orduña-Cabrera, Katya Pérez-Guzmán, Dmitry Schepaschenko, Maria Shchepashchenko, Jan Steinhauser, Ian McCallum   +18 more
doaj   +1 more source

Equal Dignity and Unequal Protection: A Framework for Analyzing Disparate Impact Claims [PDF]

, 2019
The Supreme Court has long endorsed the theory of the “colorblind” Equal Protection Clause, viewing it as a mandate of only facial equality. Due to rigid doctrine that limits true protection to only a short, stagnant list of fundamental rights and ...
Nodes, Kyle P.
core   +1 more source

Enriques surfaces with eight nodes

, 2001
A nodal Enriques surface can have at most 8 nodes. We give an explicit description of Enriques surfaces with 8 nodes, showing that they are quotients of products of elliptic curves by a group isomorphic to $\Z_2^2$ or to $\Z_2^3$ acting freely in ...
Lopes, Margarida Mendes, Pardini, Rita
core   +2 more sources

Reconstructing the Antikythera Mechanism lost eclipse events applying the Draconic gearing - the impact of gear error [PDF]

Cultural Heritage and Modern Technologies
We present new observations concerning the procedure for the reconstruction of the lost eclipse events engraved in the Saros spiral cells of the Antikythera Mechanism.
Aristeidis Voulgaris, Christophoros Mouratidis, Andreas Vossinakis   +2 more
doaj   +1 more source

Diversification of Galianthe species (Rubiaceae) in the Neotropical seasonally dry forests: a case study of a mainly subshrubby genus [PDF]

Plant Ecology and Evolution, 2018
Aim ‒ To evaluate the current distribution of the species of the genus Galianthe by track analysis, and to establish the distributional patterns based on the available tectonic information and the biogeographical regionalization of the Neotropical region.
Javier Elias Florentín, Marcelo Arana, Darién Prado, Juan Morrone, Roberto Salas   +4 more
doaj   +3 more sources

Novelty detection in video surveillance using hierarchical neural networks [PDF]

, 2002
. A hierarchical self-organising neural network is described for the detection of unusual pedestrian behaviour in video-based surveillance systems. The system is trained on a normal data set, with no prior information about the scene under surveillance,
Fletcher, Eric, Hunter, Andrew, Owens, Jonathan   +2 more
core   +1 more source

A harmonized data set of ruminant livestock presence and grazing data for the European Union and neighbouring countries

Scientific Data
Improving the sustainability of the European livestock sector requires recent data at high spatial resolutions. Only then can we analyse potential negative impacts of livestock related to ecosystem degradation, and positive ones such as preserving ...
Žiga Malek, Zoriana Romanchuk, Orysia Yashchun, Linda See   +3 more
doaj   +1 more source

Observation of Weyl nodes in TaAs

, 2015
In 1929, H. Weyl proposed that the massless solution of Dirac equation represents a pair of new type particles, the so-called Weyl fermions [1]. However the existence of them in particle physics remains elusive for more than eight decades.
Bisti, F., Chen, G. F., Dai, X., Ding, H., Fang, Z., Huang, X. C., Lv, B. Q., Ma, J. Z., Matt, C., Mesot, J., Qian, T., Richard, P., Shi, M., Strokov, V., Weng, H. M., Xu, N., Zhao, L. X.   +16 more
core   +2 more sources

Critical Nodes In Directed Networks [PDF]

, 2014
Critical nodes or "middlemen" have an essential place in both social and economic networks when considering the flow of information and trade. This paper extends the concept of critical nodes to directed networks.
Gilles, Robert P., Sims, Owen
core   +1 more source