Results 1 to 10 of about 795,774 (269)

Physical bases for determination of scattering kernels from incomplete data in grid-less X-ray imaging [PDF]

open access: yesЯдерна фізика та енергетика, 2021
A mathematical model for the determination of X-ray scattering kernels’ shapes based on incomplete simulation or measurement data was introduced and tested using a mathematical phantom.
A. Yu. Danyk, O. O. Sudakov
doaj   +1 more source

Comparative research on thunderstorms identification based on three clustering methods

open access: yes暴雨灾害, 2023
In order to evaluate the recognition effect of different clustering algorithms on thunderstorm system, further improve the ability of lightning nowcasting, in this study, with the ground-based lightning location data and radar reflectivity data, three ...
Zheng SHI   +4 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   +2 more sources

Survival cluster analysis [PDF]

open access: yesProceedings of the ACM Conference on Health, Inference, and Learning, 2020
Conventional survival analysis approaches estimate risk scores or individualized time-to-event distributions conditioned on covariates. In practice, there is often great population-level phenotypic heterogeneity, resulting from (unknown) subpopulations with diverse risk profiles or survival distributions. As a result, there is an unmet need in survival
Paidamoyo Chapfuwa   +4 more
openaire   +2 more sources

Recovery of Forest Vegetation in a Burnt Area in the Republic of Korea: A Perspective Based on Sentinel-2 Data

open access: yesApplied Sciences, 2021
Forest fires are severe disasters that cause significant damage in the Republic of Korea and the entire world, and an effort is being made to prevent forest fires internationally.
Yunhee Kim   +4 more
doaj   +1 more source

Data Mining-Based Collision Scenarios of Vehicles and Two Wheelers for the Safety Assessment of Intelligent Driving Functions

open access: yesWorld Electric Vehicle Journal, 2023
The safety performance test of intelligent driving vehicles needs to rely on the collision scenarios in a real road traffic environment. In order to study the collision scenarios and accident characteristics of vehicles and two wheelers (TWs) in line ...
Rong Wang   +3 more
doaj   +1 more source

Representing and Inferring Massive Network Traffic Condition: A Case Study in Nashville, Tennessee

open access: yesAlgorithms, 2023
Intelligent transportation systems (ITSs) usually require monitoring of massive road networks and gathering traffic data at a high spatial and temporal resolution.
Hairuilong Zhang   +2 more
doaj   +1 more source

The Number and Distinct Clustering Patterns of Voltage-Gated Calcium Channels in Nerve Terminals

open access: yesFrontiers in Neuroanatomy, 2022
Upon the arrival of action potentials at nerve terminals, neurotransmitters are released from synaptic vesicles (SVs) by exocytosis. CaV2.1, 2.2, and 2.3 are the major subunits of the voltage-gated calcium channel (VGCC) responsible for increasing ...
Kohgaku Eguchi   +3 more
doaj   +1 more source

Abnormal Dynamic Functional Networks in Subjective Cognitive Decline and Alzheimer's Disease

open access: yesFrontiers in Computational Neuroscience, 2022
Subjective cognitive decline (SCD) is considered to be the preclinical stage of Alzheimer's disease (AD) and has the potential for the early diagnosis and intervention of AD.
Jue Wang   +9 more
doaj   +1 more source

Detection and analysis of cluster–cluster filaments [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2020
ABSTRACTIn this work, we identify and analyse the properties of cluster–cluster filaments within a cosmological simulation assuming that they are structures connecting maxima of the density field defined by dark matter haloes with masses $M \, \ge 10^{14}\, h^{-1} \, \mathrm{M_{\odot }}$.
Luis A Pereyra   +4 more
openaire   +3 more sources

Home - About - Disclaimer - Privacy