Search results for "Media Studie"

WiHAR : From Wi-Fi Channel State Information to Unobtrusive Human Activity Recognition

2020

A robust and unobtrusive human activity recognition system is essential to a multitude of applications, such as health care, active assisted living, robotics, sports, and tele-immersion. Existing well-performing activity recognition methods are either vision- or wearable sensor-based. However, they are not fully passive. In this paper, we develop WiHAR—an unobtrusive Wi-Fi-based activity recognition system. WiHAR uses the Wi-Fi network interface card to capture the channel state information (CSI) data. These CSI data are effectively processed, and then amplitude and phase information is used to obtain the spectrogram. In the subsequent step, the time-variant mean Doppler shift (MDS) caused …

Taking Online Search Queries as an Indicator of the Public Agenda

2016

Recently, several studies suggested that the amount of online search queries can be used as an indicator of the public agenda. Based on former research by the authors, this article discusses the role of public uncertainty as another factor influencing search queries. Therefore, the influence of media coverage on Wikipedia searches concerning two issues is compared: one issue with uncertainty (the Enterohaemorrhagic Escherichia coli [EHEC] epidemic), and one without uncertainty (unemployment). Analyses show much stronger correlations in the case of EHEC, which suggests that online search behavior may especially be used as an indicator of the public agenda in case public uncertainty exists.

Infantile Hemangioma Detection using Deep Learning

2020

Infantile hemangiomas are the most common type of benign tumor which appear in the first weeks of life. As currently there is no robust protocol to monitor and assess the hemangioma status, this study proposes a preliminary method to detect the lesion. Therefore, in this paper we describe a hemangiomas classifier based on a linear convolutional neural network architecture. The challenge was to achieve a good classification using a relatively small internal database of 240 images from 40 different patients. The results are promising as the CNN performance evaluation showed a level of accuracy on the test set of 93.84%. Five metrics were calculated to assess the proposed model performances: a…

Priority Enabled Grant-Free Access With Dynamic Slot Allocation for Heterogeneous mMTC Traffic in 5G NR Networks

2021

Although grant-based mechanisms have been a predominant approach for wireless access for years, the additional latency required for initial handshake message exchange and the extra control overhead for packet transmissions have stimulated the emergence of grant-free (GF) transmission. GF access provides a promising mechanism for carrying low and moderate traffic with small data and fits especially well for massive machine type communications (mMTC) applications. Despite a surge of interest in GF access, how to handle heterogeneous mMTC traffic based on GF mechanisms has not been investigated in depth. In this paper, we propose a priority enabled GF access scheme which performs dynamic slot …

‘It Goes Around the World’ – Children’s Understandingof the Internet

2019

The Internet has become an important literacy environment, even for children. Therefore, building the foundations for their critical engagement with online information should start when they first enter school. One way to start is to help children build an understanding about the complexities of the Internet environment. The present study aimed at increasing our knowledge about children’s understanding of the Internet as a technical and social environment. It also explored how children perceive the trustworthiness of online information. The participants included 30 children aged 7–9 years. The children were interviewed and the data was analysed using content analysis. We share the results f…

Inhabiting Cyberspace and Emerging Cyberplaces

2017

This concluding chapter summarises the benefits of using the notion of inhabiting cyberspace when analysing the websites of communities and neighbourhoods. Broadly speaking, the conclusions examine the results of the case study in the light of those studies reviewed in Chap. 2. It highlights that inhabiting cyberplaces based on the World Wide Web has become an important part of inhabiting the contemporary world. Outside pressures and the omnipresent threat of surveillance make it essential for neighbourhoods and communities, particularly those of interest for tourists and those involved in organising world-famous events, to unlock cyberspace. Online representations are, therefore, performat…

2020

Communication within contemporary families is increasingly and to a significantextent mediated through technological devices and digital applications.Although the everyday reality of many multilingual families is permeated by technology, research on their digital and language practices has been scant. This article argues for the need for eclectic approaches that draw upon theories, practices, and findings from research on transnational families and migration, digitally mediated family communication, parental mediation, multilingualism online, and family multilingualism and language transmission. Two empirical case studies are presented on multilingual family constellations in Finland in whi…

Processing privacy information and decision-making for smartphone apps among young German smartphone users

2018

While privacy behaviour is generally equated with self-disclosure, other forms of behaviour that potentially infringe an individual’s privacy, such as downloading an app, are being neglected by research. We seek to fill this gap by modelling app decision-making within a dual-process model of the attitude–behaviour relationship and the role of privacy attitudes in two kinds of information processing: (1) spontaneous, heuristic processes that rely on automated attitude activation and (2) elaborate, cognitive processes that rely on behavioural intentions to guide behaviour. We used a quasi-experimental design to investigate app decision-making processes for N = 89 participants in N = 254 decis…

Paths of hybridization among journalism, politics, and public sector communication in Italy

2021

This article argues that in Italy there is a new problematic relationship among journalism, politics, and public sector organizations due to the permanence of some traditional features in the informative context as well as to the success of infotainment logic and to the pervasive use of social media. In the new hybrid digi-tal ecosystem, a redefinition of the social role of information is necessary to un-derstand the perspectives for journalism and public sector communication. Info-tainment and politainment enhance the hybridization of Italian public sector communication formats and styles mainly on social media platforms. This process has consequences on interactions and overplays between …

Genres of communication in activist eParticipation

2012

In this paper, we examine the genres of communication in an activist case in a Norwegian municipality. As genres evolve over time, and the emergence of new genre properties is a sign of a mature technology, we compare the genres used in traditional paper-based media with the genres used in social media, to examine the maturity of social media as a medium for activist eParticipation. We also discuss the usage patterns of traditional vs. social media, and their relation to the public sphere. Our findings indicate that so far, the genres used for activism in social media are very similar to their offline counterparts, with some new genres and genre characteristics emerging. Social media is mov…