Search results for "Phone"

Multilayer Network Analysis: The Identification of Key Actors in a Sicilian Mafia Operation

2021

Recently, Social Network Analysis studies have led to an improvement and to a generalization of existing tools to networks with multiple subsystems and layers of connectivity. These kind of networks are usually called multilayer networks. Multilayer networks in which each layer shares at least one node with some other layer in the network are called multiplex networks. Being a multiplex network does not require all nodes to exist on every layer. In this paper, we built a criminal multiplex network which concerns an anti-mafia operation called “Montagna” and it is based on the examination of a pre-trial detention order issued on March 14, 2007 by the judge for preliminary investigations of t…

Siamo l'esercito del Selfie e non abbiamo più contatti

2017

Le tecnologie mobili influenzano profondamente il modo di pensare e di organizzare il sapere: tendenze, potenzialità e criticità. Le persone sviluppano un’adeguata concezione dei processi cognitivi implicati dagli strumenti multimediali e sono in grado di controllare tali processi in maniera funzionale. L'utilizzo di social media online, come Facebook, WhatsApp, Twitter, ecc., Sta diventando un fenomeno psicologico e sociale. Oltre il 55 per cento dei "Millennials" hanno preso un selfie e lo hanno condiviso sui social media e oltre 93 milioni di selfies vengono utilizzati ogni giorno con il rischio di condurre all'ossessione. Il Selfie è un'attività non così nuova ma popolare nella cultura …

Introduction: Situating the Human in Social Robots

2015

Traditionally the social has been considered as a characteristic of human beings, not of inanimate machines. At the same time, each technological device can be considered social born out of a complex process of invention, implementation, distribution and domestication by users (Hirsch and Silverstone 2004; Lasen 2013). Since recent technical developments have made possible rather detailed technical mimicking of human beings and their social features, and incorporating them in silicon chips, there is a pronounced need to understand to what extent the humanness can be implanted in social robots. This is also an occasion to think over and discuss what the human is when considered in this conte…

Microphones’ Directivity for the Localization of Sound Sources

2011

In a recent paper [P. Rizzo, G. Bordoni, A. Marzani, and J. Vipperman, "Localization of Sound Sources by Means of Unidirectional Microphones, Meas. Sci. Tech., 20, 055202 (12pp), 2009] the proof-of-concept of an approach for the localization of acoustic sources was presented. The method relies on the use of unidirectional microphones and amplitude-based signals' features to extract information about the direction of the incoming sound. By intersecting the directions identified by a pair of microphones, the position of the emitting source can be identified. In this paper we expand the work presented previously by assessing the effectiveness of the approach for the localization of an acoustic…

Spatio-Temporal Analysis of Urban Acoustic Environments with Binaural Psycho-Acoustical Considerations for IoT-Based Applications

2018

Sound pleasantness or annoyance perceived in urban soundscapes is a major concern in environmental acoustics. Binaural psychoacoustic parameters are helpful to describe generic acoustic environments, as it is stated within the ISO 12913 framework. In this paper, the application of a Wireless Acoustic Sensor Network (WASN) to evaluate the spatial distribution and the evolution of urban acoustic environments is described. Two experiments are presented using an indoor and an outdoor deployment of a WASN with several nodes using an Internet of Things (IoT) environment to collect audio data and calculate meaningful parameters such as the sound pressure level, binaural loudness and binaural sharp…

A Cross-Cultural Study of Smartphone Adoption in Uzbekistan and South Korea

2019

Smartphone technology has changed how mobile phones are perceived and used in daily life. In 2015, global smartphone sales reached 1.4 billion units, representing an increase of 14.4 percent from 2014. Despite this popularity, penetration rates vary significantly across countries, with a global median of 43%. The main purpose of this research is to examine smartphone adoption in Uzbekistan and South Korea based on the Unified Theory of Acceptance and Use of Technology (UTAUT) and to categorize constructs according to the Kano model. The findings indicate significant differences between South Korea and Uzbekistan in terms of technology adoption as a whole and perception of UTAUT constructs.

An integrated dialect analysis tool using phonetics and acoustics

2019

This study aimed to verify a computational phonetic and acoustic analysis tool created in the MATLAB environment. A dataset was obtained containing 3 broad American dialects (Northern, Western and New England) from the TIMIT database using words that also appeared in the Swadesh list. Each dialect consisted of 20 speakers uttering 10 sentences. Verification using phonetic comparisons between dialects was made by calculating the Levenshtein distance in Gabmap and the proposed software tool. Agreement between the linguistic distances using each analysis method was found. Each tool showed increasing linguistic distance as a function of increasing geographic distance, in a similar shape to Segu…

PRODUCTION OF THE SPANISH VOWEL SYSTEM BY CHINESE SPEAKERS

2018

RESUMEN En este trabajo se comparan los sistemas vocálicos del español y del chino pronunciados por hablantes nativos con el objetivo de presentar a continuación las peculiaridades del sistema vocálico español de un grupo de estudiantes de China con un nivel intermedio de español. El estudio de las similitudes y las diferencias entre los sistemas nativos nos ha permitido prever en qué áreas pueden diferir las vocales pronunciadas por aprendices chinos de las vocales españolas. Los resultados indican que el sistema vocálico español de los estudiantes chinos es estructuralmente similar al sistema nativo, pero con algunas diferencias fonéticas: en primer lugar, tiene una extensión mayor por lo…

La articulación de los sonidos en la lexicografía del español (siglos XIX y XX)

2010

En los artículos dedicados a las letras del alfabeto en la lexicografía del español aparecen, junto a otras informaciones de tipo enciclopédico, descripciones de la articulación de los sonidos y de su ortografía en una tradición que arranca del Tesoro de Covarrubias. Asimismo, para el siglo XVIII, desde una perspectiva ortográfica, se ha examinado la información fonética que aparece en el Diccionario de Autoridades o en el de Terreros (Martínez Alcalde 2010a) y, dentro de las obras académicas, el período comprendido entre el Diccionario de Autoridades (DA) y el Diccionario de la lengua castellana o (DRAE) de 1817 cuenta con el estudio de Pozuelo (1989), que establece con precisión el origen…

2019

The development of phonological awareness, the knowledge of the structural combinatoriality of a language, has been widely investigated in relation to reading (dis)ability across languages. However, the extent to which knowledge of phonemic units may interact with spoken language organization in (transparent) alphabetical languages has hardly been investigated. The present study examined whether phonemic awareness correlates with coarticulation degree, commonly used as a metric for estimating the size of children's production units. A speech production task was designed to test for developmental differences in intra-syllabic coarticulation degree in 41 German children from 4 to 7 years of a…