Search results for "NETWORK"

Is There a Predisposition towards the Use of New Technologies within the Traffic Field of Emerging Countries? The Case of the Dominican Republic

2021

Technological devices are becoming more and more integrated in the management and control of traffic in big cities. The population perceives the benefits provided by these systems, and, therefore, citizens usually have a favorable opinion of them. However, emerging countries, which have fewer available infrastructures, could present a certain lack of trust. The objective of this work is to detect the level of knowledge and predisposition towards the use of new technologies in the transportation field of the Dominican Republic. For this study, the National Survey on Mobility was administered to a sample of Dominican citizens, proportional to the ONE census and to sex, age and province. The k…

Optimal Configuration for N-Dimensional Twin Torus Networks

2014

Torus topology is one of the most common topologies used in the current largest supercomputers. Although 3D torus is widely used, recently some supercomputers in the Top500 list have been built using networks with topologies of five or six dimensions. To obtain an nD torus, 2n ports per node are needed. These ports can be offered by a single or several cards per node. In the second case, there are multiple ways of assigning the dimension and direction of the card ports. In a previous work we proposed the 3D Twin (3DT) torus which uses two 4-port cards per node, and obtained the optimal port configuration. This paper extends and generalizes that work in order to obtain the optimal port confi…

Fałszerstwo dokumentów ze szczególnym uwzględnieniem przestępczości internetowej jako wyzwanie dla organów państwa

2018

Celem niniejszego opracowania jest przedstawienie zagrożeń wynikających z fałszowania dokumentów, a szczególnie wykorzystania nowoczesnych technologii do tego niecnego procederu. Zaprezentowane zostały definicje dokumentu i fałszerstwa oraz podjęta została próba przedstawienia aktualnych kierunków rozwoju przestępczości w obszarze IT. Autorka zwróciła uwagę na problem sieci TOR (ang. The Onion Router), która stanowi obecnie największe zagrożenie dla bezpieczeństwa w zakresie autentyczności dokumentów. W artykule zwraca się także uwagę na konieczność przedsięwzięcia przez organy państwowe działań zmierzających do zapobiegania przestępczości związanej z wiarygodnością dokumentów.

Ventricular Fibrillation and Tachycardia detection from surface ECG using time-frequency representation images as input dataset for machine learning

2017

Parameter-less ventricular fibrillation detection with time-frequency representation.Time-frequency representations are treated as images for a classifier.A comparison for four classifiers demonstrates the validity of the proposed method.The proposed technique could be applied to any signal and research field.This is a novel approach to signal analysis. Background and objectiveTo safely select the proper therapy for Ventricullar Fibrillation (VF) is essential to distinct it correctly from Ventricular Tachycardia (VT) and other rhythms. Provided that the required therapy would not be the same, an erroneous detection might lead to serious injuries to the patient or even cause Ventricular Fibr…

Transformation Of Individual Learning Into Organisational And Networked Learning In Vocational Education

2008

The Finnish vocational education and training system has traditionally been largely school-based with the inclusion of only short practice periods in students’ study programmes. In 2001 the system was reformed, new 3-year study programmes were introduced in all fields of study, and workplace learning (WPL; at least 6 months) became a compulsory part of all vocational study programmes. WPL is defined as systematically guided and assessed learning that takes place in authentic work environments. Thus, workplaces have to provide guidance and support for student learning and to participate in a tripartite assessment. At the beginning of the workplace learning period the student, the teacher and…

Multi-feature Counting of Dense Crowd Image Based on Multi-column Convolutional Neural Network

2020

The crowd counting task is an important research problem. Now more and more people are concerned about safety issues. When the population density reaches a very high peak, the population density counts, the alarm is sent out, and the crowds are diverted. The trampling of the Shanghai New Year’s stampede will not happen again. The final density map is produced by two steps: at first, extract feature maps from multiple layers, and then adjust their output so that they are all the same size, all these resized layers are combined into the final density map. We also used texture features and target edge detection to reduce the loss of density map detail to better integrate with our convolutional…

A network of Italian amphipodologists in the frame of MOTax (Marine Organisms Taxonomy) at the Stazione Zoologica Anton Dohrn di Napoli (Italy)

2017

Team Coordination in Basketball: Description of the Cognitive Connections Among Teammates

2010

International audience; This study investigated team coordination in basketball using the course-of-action theoretical framework. The focus was on how the players were connected with their teammates' activities. The activity of five French basketball players (17.60 ± .89 years) was studied during an official match. The data were collected and processed according to a procedure defined for course-of-action analysis. The results were used to characterize the coordination modes among players and the team coordination network that was built. The processes that underlie team coordination are discussed (i.e., mutuality and awareness), and some directions for practical applications are addressed.

Exploiting programmable architectures for WiFi/ZigBee inter-technology cooperation

2014

The increasing complexity of wireless standards has shown that protocols cannot be designed once for all possible deployments, especially when unpredictable and mutating interference situations are present due to the coexistence of heterogeneous technologies. As such, flexibility and (re)programmability of wireless devices is crucial in the emerging scenarios of technology proliferation and unpredictable interference conditions. In this paper, we focus on the possibility to improve coexistence performance of WiFi and ZigBee networks by exploiting novel programmable architectures of wireless devices able to support run-time modifications of medium access operations. Differently from software…

A new framework for the time- and frequency-domain assessment of high-order interactions in networks of random processes

2022

While the standard network description of complex systems is based on quantifying the link between pairs of system units, higher-order interactions (HOIs) involving three or more units often play a major role in governing the collective network behavior. This work introduces a new approach to quantify pairwise and HOIs for multivariate rhythmic processes interacting across multiple time scales. We define the so-called O-information rate (OIR) as a new metric to assess HOIs for multivariate time series, and present a framework to decompose the OIR into measures quantifying Granger-causal and instantaneous influences, as well as to expand all measures in the frequency domain. The framework ex…