Results 261 to 270 of about 1,375,944 (307)
Some of the next articles are maybe not open access.
Reorganization of clusters in cluster-cluster-aggregation
AIP Conference Proceedings, 2000X-ray microscopy and scattering experiments give different experimental results when determining the fractal dimension of colloidal clusters. A two dimensional simulation model is presented to describe reorganization of clusters during the aggregation process. Considering this reorganization gives a rapidly increasing fractal dimension from d=1.53 to d=
openaire +1 more source
To Cluster or Not Cluster, That is the Question
The American Journal of Geriatric Psychiatry, 2022Roy, Adams, Paul, Rosenberg
openaire +2 more sources
2006
Abstract To probe the past effectively, we need to study galaxies. These are fossils from the past, because their properties have changed little since formation. Clusters of galaxies are relatively pristine collections of galaxies. Clusters have not changed much since birth, and contain any debris that galaxies may have ejected in their ...
openaire +1 more source
Abstract To probe the past effectively, we need to study galaxies. These are fossils from the past, because their properties have changed little since formation. Clusters of galaxies are relatively pristine collections of galaxies. Clusters have not changed much since birth, and contain any debris that galaxies may have ejected in their ...
openaire +1 more source
A fuzzy clustering ensemble based on cluster clustering and iterative Fusion of base clusters
Applied Intelligence, 2019For obtaining the more robust, novel, stable, and consistent clustering result, clustering ensemble has been emerged. There are two approaches in clustering ensemble frameworks: (a) the approaches that focus on creation or preparation of a suitable ensemble, called as ensemble creation approaches, and (b) the approaches that try to find a suitable ...
Musa Mojarad +3 more
openaire +2 more sources
Dynamic cluster-size distribution in cluster-cluster aggregation: Effects of cluster diffusivity
Physical Review B, 1985The dynamics of the diffusion-limited model of cluster-cluster aggregation is investigated in two and three dimensions by studying the temporal evolution of the cluster-size distribution ${n}_{s}$(t), which is the number of clusters of size s at time t.
, Meakin, , Vicsek, , Family
openaire +2 more sources
Cluster headache and cluster variants
Current Treatment Options in Neurology, 2003Patients must be cognizant of the time course of the cluster headache periods to optimally tailor their therapy. Steroids provide the fastest onset of prophylactic effect. Once steroids are initiated, it remains difficult to wean patients off of them, and that is why it is always recommended to associate another prophylactic agent from the onset with ...
openaire +2 more sources
Clusters on Clusters:closo-Dodecaborate as a Ligand for Au55 Clusters
European Journal of Inorganic Chemistry, 1999The exchange of PPh3 in Au55(PPh3)12Cl6 by Na2[B12H11SH] using a phase-transfer reaction from CH2Cl2 to water needs 6 weeks for reaction, but finally results in the quantitative formation of Au55[(B12H11SH)Na2]12Cl6 (2). Cluster 2, which is of considerable stability in aqueous solution, has been characterized by 1H-NMR, 11B-NMR, and IR spectroscopy as ...
Schmid, Günter +3 more
openaire +1 more source
Correlation Clustering and Consensus Clustering
2005The Correlation Clustering problem has been introduced recently [5] as a model for clustering data when a binary relationship between data points is known. More precisely, for each pair of points we have two scores measuring respectively the similarity and dissimilarity of the two points, and we would like to compute an optimal partition where the ...
Paola Bonizzoni +3 more
openaire +2 more sources
Clustering with the Levy Walk: “Hunting” for Clusters
2016 IEEE 16th International Conference on Data Mining Workshops (ICDMW), 2016The Levy Walk (or Levy flight) is a concept from Biomathematics to describe the hunting?behaviour of many predatory species. It is a very efficient way to find prey in a very short time frame. We now want to use this concept in a clustering?context to ? if you so will ? ?hunt? for clusters.
Benjamin Schelling, Claudia Plant
openaire +2 more sources
Online Clustering with Variable Sized Clusters
Algorithmica, 2010zbMATH Open Web Interface contents unavailable due to conflicting licenses.
János Csirik +3 more
openaire +3 more sources