Results 51 to 60 of about 7,073,257 (192)

Visibility graph analysis for educational data: potentials and a case study of predicting at-risk online students

open access: yesScientific Reports
This paper introduces visibility graph analysis as a supplementary approach for examining educational time series data, particularly in online learning environments.
Hadis Azizi   +3 more
doaj   +1 more source

Semantic Network Analysis of Ontologies [PDF]

open access: yes, 2011
A key argument for modeling knowledge in ontologies is the easy re-use and re-engineering of the knowledge. However, current ontology engineering tools provide only basic functionalities for analyzing ontologies.
Hoser, Bettina   +4 more
core  

N-Acetylcysteine, N-Acetylcysteine Amide, and Thioredoxin Mimetic Peptides Regenerate Mercaptoalbumin and Exhibit Antioxidant Activity

open access: yesAntioxidants
Albumin (HSA) is the most abundant circulating protein and plays a pivotal role in maintaining the redox state of the plasma. Three HSA proteoforms have been identified based on the redox state of cysteine 34.
Sonia Eligini   +4 more
doaj   +1 more source

Network Analysis of Particles and Grains

open access: yes, 2017
The arrangements of particles and forces in granular materials have a complex organization on multiple spatial scales that ranges from local structures to mesoscale and system-wide ones.
Bassett, Danielle S.   +3 more
core   +1 more source

Analysis of telephone network traffic based on a complex user network

open access: yes, 2006
The traffic in telephone networks is analyzed in this paper. Unlike the classical traffic analysis where call blockings are due to the limited channel capacity, we consider here a more realistic cause for call blockings which is due to the way in which ...
Aktiengesellschaft   +16 more
core   +3 more sources

Explainable Artificial Intelligence Model for Stroke Prediction Using EEG Signal

open access: yesSensors, 2022
State-of-the-art healthcare technologies are incorporating advanced Artificial Intelligence (AI) models, allowing for rapid and easy disease diagnosis.
Mohammed Saidul Islam   +4 more
doaj   +1 more source

A Review of Visibility Graph Analysis

open access: yesIEEE Access
A graph approach to time series data provides a new perspective for analyzing and comprehending the characteristics of the data. One common method of converting time series into a graph is through visibility graph analysis.
Hadis Azizi, Sadegh Sulaimany
doaj   +1 more source

Modelos estocásticos orientados en el actor utilizando RSiena (III).

open access: yesREDES: Revista Hispana para el Análisis de Redes Sociales, 2022
Este texto es el tercer guión de una serie de seis guiones escritos en el lenguaje y ambiente de programación R que conjuntamente constituyen la introducción al software RSiena para estimar modelos estocásticos orientados en el actor para redes ...
Alejandro Espinosa-Rada, Alvaro Uzaheta
doaj   +1 more source

Three-Channel Convolutional Neural Network for Polarimetric SAR Images Classification

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2020
Terrain classification is an important topic in polarimetric synthetic aperture radar (PolSAR) image processing and interpretation. A novel PolSAR classification method based on the three-channel convolutional neural network (Tc-CNN) is proposed and this
Wenqiang Hua, Wen Xie, Xiaomin Jin
doaj   +1 more source

Network Non-neutrality Debate: An Economic Analysis [PDF]

open access: yes, 2011
This paper studies the economic utilities and the quality of service (QoS) in a two-sided non-neutral market where Internet service providers (ISPs) charge content providers (CPs) for the content delivery.
Altman, Eitan   +2 more
core   +7 more sources

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