Search results for " learning."
showing 10 items of 5179 documents
Impact of Wavelet Kernels on Predictive Capability of Radiomic Features: A Case Study on COVID-19 Chest X-ray Images
2023
Radiomic analysis allows for the detection of imaging biomarkers supporting decision-making processes in clinical environments, from diagnosis to prognosis. Frequently, the original set of radiomic features is augmented by considering high-level features, such as wavelet transforms. However, several wavelets families (so called kernels) are able to generate different multi-resolution representations of the original image, and which of them produces more salient images is not yet clear. In this study, an in-depth analysis is performed by comparing different wavelet kernels and by evaluating their impact on predictive capabilities of radiomic models. A dataset composed of 1589 chest X-ray ima…
Comunicare con i bambini per promuovere la loro crescita la prospettiva intersoggettiva ed embodied
2020
L'articolo tratta della specificità della relazione adulto-bambino piccolo, soffermandosi sulla prospettiva intersoggettiva alla seconda persona e facendo riferimento alle ultime ricerche neuroscientifiche che confermano il ruolo fondamentale della comunicazione psico-corporea nell'apprendimento e nello sviluppo infantile e l’importanza delle emozioni e degli affetti. Riflette quindi sulla specificità dei percorsi formativi per gli educatori per l’infanzia che, in una tale prospettiva, dovrebbero intrecciare il piano personale e quello professionale centrandosi sull’esperienza e sulla riflessione e l’autoriflessione. In questo senso particolarmente efficaci si rivelano i linguaggi artistico…
Evaluation of Hybrid Models to Estimate Chlorophyll and Nitrogen Content of Maize Crops in the Framework of the Future CHIME Mission
2022
In the next few years, the new Copernicus Hyperspectral Imaging Mission (CHIME) is foreseen to be launched by the European Space Agency (ESA). This mission will provide an unprecedented amount of hyperspectral data, enabling new research possibilities within several fields of natural resources, including the “agriculture and food security” domain. In order to efficiently exploit this upcoming hyperspectral data stream, new processing methods and techniques need to be studied and implemented. In this work, the hybrid approach (HYB) and its variant, featuring sampling dimensionality reduction through active learning heuristics (HAL), were applied to CHIME-like data to evaluate the…
Flipped learning e gioia del lavoro ben fatto. Una ricerca con i futuri docenti di scuola primaria e dell'infanzia
2019
La formazione iniziale degli insegnanti richiede un approccio sistemico e modelli formativi per la promozione di interventi finalizzati a favorire negli studenti la consapevolezza del valore dello studio in un quadro orientato a favorire i risultati della formazione così come definiti dai Descrittori di Dublino e a sostenere l'apprendimento responsabile dello studente. La promozione della qualità della didattica universitaria ha come scopo fondamentale quello di garantire agli studenti un apprendimento significativo ed efficace. Initial teacher training requires a systemic approach and training models for the promotion of interventions aimed at encouraging students to evaluate the value of …
Skill learning during an asynchronous music e-learning module
2023
Learning musical skills is often associated with face-to-face teaching. Few studies on musical skill learning through asynchronous e-learning have been conducted; however, the demand for e-learning has increased due to multiform learning and individual education paths, unrestricted by time and place. This demand is the basis of this research. The focus of this study is Finnish classroom teacher students’ skill learning, learning processes, and learning experiences, while studying music independently through e-learning. The research method is an intensive case study with six students. Their learning diaries were analysed using a data-driven content analysis. Background factors were musical i…
The Three Steps of Clustering in the Post-Genomic Era: A Synopsis
2011
Clustering is one of the most well known activities in scientific investigation and the object of research in many disciplines, ranging from Statistics to Computer Science. Following Handl et al., it can be summarized as a three step process: (a) choice of a distance function; (b) choice of a clustering algorithm; (c) choice of a validation method. Although such a purist approach to clustering is hardly seen in many areas of science, genomic data require that level of attention, if inferences made from cluster analysis have to be of some relevance to biomedical research. Unfortunately, the high dimensionality of the data and their noisy nature makes cluster analysis of genomic data particul…
Cognitive Deficits and Associated ERP N400 Abnormalities in FXTAS With Parkinsonism
2018
Objective: To examine cognitive deficits and associated brain activity in fragile X-associated tremor/ataxia syndrome (FXTAS) patients with parkinsonism (FXTp+), in relation to FXTAS patients without parkinsonism (FXTp-), and normal elderly controls (NC). Methods: Retrospective reviews were performed in 65 FXTAS patients who participated in the event-related brain potential (ERP) study and also had either a videotaped neurological examination or a neurological examination for extrapyramidal signs. Parkinsonism was defined as having bradykinesia with at least one of the following: rest tremor, postural instability, hypermyotonia, or rigidity. Eleven FXTp+ patients were identified and compare…
The Impact of Age on the Association Between Physical Activity and White Matter Integrity in Cognitively Healthy Older Adults
2020
Cognition emerges from coordinated processing among distributed cortical brain regions, enabled through interconnected white matter networks. Cortical disconnection caused by age-related decline in white matter integrity (WMI) is likely to contribute to age-related cognitive decline. Physical activity (PA) has been suggested to have beneficial effects on white matter structure. However, its potential to counteract age-related decline in WMI is not yet well established. The present explorative study analyzed if PA was associated with WMI in cognitively healthy older adults and if this association was modulated by age. Forty-four cognitively healthy older individuals (aged 60–88 years) with d…
Artificial intelligence in the cyber security environment
2019
Artificial Intelligence (AI) is intelligence exhibited by machines. Any system that perceives its environment and takes actions that maximize its chance of success at some goal may be defined as AI. The family of AI research is rich and varied. For example, cognitive computing is a comprehensive set of capabilities based on technologies such as deep learning, machine learning, natural language processing, reasoning and decision technologies, speech and vision technologies, human interface technologies, semantic technology, dialog and narrative generation, among other technologies. Artificial intelligence and robotics have steadily growing roles in our lives and have the potential to transfo…
Vecākā pirmsskolas vecumposma bērnu izziņas intereses sekmēšanas iespējas brīvdabas pedagoģijā
2021
Darba nosaukums: Vecākā pirmsskolas vecumposma bērnu izziņas intereses sekmēšanas iespējas brīvdabas pedagoģijā. Darba autors: Oļesja Ščeglova Darba vadītājs: Tija Zīriņa Darba mērķis ir izzināt izziņas intereses sekmēšanas iespējas brīvdabas pedagoģijā vecākajā pirmsskolas vecumā. Darba mērķa sasniegšanai vecākā pirmsskolas vecmposma bērniem tika radīta atklājumiem atbilstoša brīvdabas vide, ar iespēju pašvadīti veikt praktisko darbu un eksperimentēt. Darba autore izvirzīja hipotēzi, ka vecākā pirmsskolas vecumposma bērnu izziņas intereses sekmēšana brīvdabas pedagoģijā būs sekmīga, ja skolotājs rada situāciju un pielāgo vidi, kurā bērnam rodas dabiska interese un vajadzība apgūt zināšanas…