Results 11 to 20 of about 2,744,930 (320)

Clustering of CODEX clusters [PDF]

open access: yesAstronomy & Astrophysics, 2021
Context. The clustering of galaxy clusters links the spatial nonuniformity of dark matter halos to the growth of the primordial spectrum of perturbations. The amplitude of the clustering signal is widely used to estimate the halo mass of astrophysical objects.
N. Padilla   +12 more
openaire   +7 more sources

Clustering cluster algebras with clusters

open access: yesAdvances in Theoretical and Mathematical Physics, 2023
Classification of cluster variables in cluster algebras (in particular, Grassmannian cluster algebras) is an important problem, which has direct application to computations of scattering amplitudes in physics. In this paper, we apply the tableaux method to classify cluster variables in Grassmannian cluster algebras $\mathbb{C}[Gr(k,n)]$ up to $(k,n)=(3,
Cheung, MW   +5 more
openaire   +3 more sources

Implementation of Tunneling Junction Passivated Contact Concept in Flexible CIGS Solar Cells

open access: yesAdvanced Materials Interfaces, 2023
In today's state‐of‐the‐art high‐efficiency silicon solar cells need to be inserted a thin insulating layer in order to reduce the recombination losses between the carrier transport layer and Si surface, which can form a tunneling junction (TJ), thus ...
Xuan Chang   +9 more
doaj   +1 more source

To cluster, or not to cluster: An analysis of clusterability methods [PDF]

open access: yesPattern Recognition, 2019
Clustering is an essential data mining tool that aims to discover inherent cluster structure in data. For most applications, applying clustering is only appropriate when cluster structure is present. As such, the study of clusterability, which evaluates whether data possesses such structure, is an integral part of cluster analysis. However, methods for
Andreas Adolfsson   +2 more
openaire   +3 more sources

Clustering of Cities Based on Their Smart Performances: A Comparative Approach of Fuzzy C-Means, K-Means, and K-Medoids

open access: yesIEEE Access, 2023
Smart City is recognized as a potential approach to address serious urban issues such as traffic, pollution, energy use, and waste management. Therefore, it is vital to evaluate how smart cities are in order to put these methods into practice.
Omer N. Kenger   +3 more
doaj   +1 more source

A GNSS/5G Integrated Three-Dimensional Positioning Scheme Based on D2D Communication

open access: yesRemote Sensing, 2022
The fifth generation (5G) communication has the potential to achieve ubiquitous positioning when integrated with a global navigation satellite system (GNSS).
Wei Zhang   +3 more
doaj   +1 more source

K-MEANS AND AGGLOMERATIVE HIERARCHICAL CLUSTERING ANALYSIS OF ESG SCORES, YEARLY VARIATIONS, AND STOCK RETURNS: INSIGHTS FROM THE ENERGY SECTOR IN EUROPE AND THE UNITED STATES [PDF]

open access: yesRevista de Studii Financiare, 2023
This study employs k-means clustering and agglomerative hierarchical clustering techniques to visually examine the potential relationship between Environmental Social and Governance (ESG) scores, their year-over-year variations, and annual stock returns ...
Ștefan Rusu   +2 more
doaj   +1 more source

Persistence in cluster-cluster aggregation [PDF]

open access: yesPhysical Review E, 2002
14 pages, 12 figures, RevTeX, submitted to Phys.
E. K. O. Hellén, Mikko J. Alava
openaire   +4 more sources

On the predictibility of A-minor motifs from their local contexts

open access: yesRNA Biology, 2022
This study investigates the importance of the structural context in the formation of a type I/II A-minor motif. This very frequent structural motif has been shown to be important in the spatial folding of RNA molecules.
Coline Gianfrotta   +4 more
doaj   +1 more source

Using Gene Expression to Study Specialized Metabolism—A Practical Guide

open access: yesFrontiers in Plant Science, 2021
Plants produce a vast array of chemical compounds that we use as medicines and flavors, but these compounds’ biosynthetic pathways are still poorly understood.
Riccardo Delli-Ponti   +2 more
doaj   +1 more source

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