Search results for "internet"
showing 10 items of 2589 documents
Taxonomy of generative adversarial networks for digital immunity of Industry 4.0 systems
2021
Abstract Industry 4.0 systems are extensively using artificial intelligence (AI) to enable smartness, automation and flexibility within variety of processes. Due to the importance of the systems, they are potential targets for attackers trying to take control over the critical processes. Attackers use various vulnerabilities of such systems including specific vulnerabilities of AI components. It is important to make sure that inappropriate adversarial content will not break the security walls and will not harm the decision logic of critical systems. We believe that the corresponding security toolset must be organized as a trainable self-protection mechanism similar to immunity. We found cer…
Online Expression, Personal Cybersecurity Costs, and the Specter of Cybercrime
2020
The internet is used increasingly as a platform both for free expression and e-commerce. The internet has unique security and privacy risks. Such risks include the threat of criminal cyberattacks, including hacking and doxing. Internet users have a variety of attitudes towards the security and privacy risks involved with using the internet and distinct concerns and behaviors with regard to expressing themselves online. In order to mitigate the security and privacy risks of the internet, some internet users spend valuable time thinking about and configuring the security settings of their devices. They may also have different attitudes towards personal spending of money for cybersecurity prod…
Cybersex in the “Net generation”: Online sexual activities among Spanish adolescents
2016
The internet offers several opportunities to explore sexuality among adolescents. However, some studies have also revealed problematic effects of cybersex in earlier stages. Despite this, few studies analyze the online sexual behavior among adolescents, even less in Spain where there is very little data. For this reason, our aim is to examine the use of internet for sexual purposes among Spanish adolescents, including gender differences. Three hundred and twenty-two adolescents completed an ad-hoc questionnaire and the Spanish version of the Internet Sex Screening Test. In general, boys report more cybersex than girls do, for example, in masturbating while the Internet (60.6% of boys and 7.…
Darbu sludinājumu portāls
2021
Darba sludinājumu portāls ir sistēma, kuras mērķis ir apkalpot divu veidu lietotājus – darba devējus un ņēmējus. Sistēma piedāvā darba devējiem izvietot darba sludinājumus uz kuriem darba ņēmēji var atsaukties. Viens no sistēmas galvenajiem mērķiem ir lietotājiem piedāvāt modernu un ērtu tiešsaistes portālu, kurš atvieglo darba meklēšanu. Sistēmas izstrādē izmantota valoda PHP 7.4., ietvars Laravel 8.0. un valodas javascript ietvars Vue.js. Sistēmas dati tiek glabāti MySQL datubāzē.
Col : A Data Collection Protocol for Vanet
2012
International audience; In this paper, we present a protocol to collect data within a vehicular ad hoc network (VANET). In spite of the intrinsic dynamic of such network, our protocol simultaneously offers three relevant properties: (1) It allows any vehicle to collect data beyond its direct neighborhood (i.e., vehicles within direct communication range) using vehicle-to-vehicle communications only (i.e., the infrastructure is not required); (2) It tolerates possible network partitions; (3) It works on demand and stops when the data collection is achieved. To the best of our knowledge, this is the first collect protocol having these three characteristics. All that is chiefly obtained thanks…
Communication-Efficient Federated Learning in Channel Constrained Internet of Things
2022
Federated learning (FL) is able to utilize the computing capability and maintain the privacy of the end devices by collecting and aggregating the locally trained learning model parameters while keeping the local personal data. As the most widely-used FL framework,Jederated averaging (FedAvg) suffers an expensive communication cost especially when there are large amounts of devices involving the FL process. Moreover, when considering asynchronous FL, the slowest device becomes the bottleneck for the cask effect and determines the overall latency. In this work, we propose a communication-efficient federated learning framework with partial model aggregation (CE-FedPA) algorithm to utilize comp…
Kibernoziegumi kā privātās dzīves aizskārums
2020
Bakalaura darbā „Kibernoziegumi kā privātās dzīves aizskārums” tiek pētīta datornoziegumu ietekme uz privāto dzīvi. Par šī temata aktualitāti liecina tas, ka mūsdienu pasaulē tehnoloģijas attīstās straujāk kā jebkad agrāk. Līdz ar to rodas jauna vide noziegumu veikšanai. Šī darba pētījuma mērķis ir izpētīt praksi un regulējumu kibernoziegumu jomā Latvijā, sniegt personīgu novērtējumu un priekšlikumus problēmjautājumu risināšanai. Darba uzdevumi ir izpētīt kibernoziegumu jēdzienu, apskatot tā vēsturi un veidus, lai izprastu, kādas tiesības ar kibernoziegumu veikšanu visbiežāk un kādā veidā tiek aizskartas. Kibernoziegumu sastāva analīze, lai noskaidrotu nozieguma objektīvās un subjektīvās pa…
Adversarial Attack’s Impact on Machine Learning Model in Cyber-Physical Systems
2020
Deficiency of correctly implemented and robust defence leaves Internet of Things devices vulnerable to cyber threats, such as adversarial attacks. A perpetrator can utilize adversarial examples when attacking Machine Learning models used in a cloud data platform service. Adversarial examples are malicious inputs to ML-models that provide erroneous model outputs while appearing to be unmodified. This kind of attack can fool the classifier and can prevent ML-models from generalizing well and from learning high-level representation; instead, the ML-model learns superficial dataset regularity. This study focuses on investigating, detecting, and preventing adversarial attacks towards a cloud dat…
More Relevant Today Than Ever: Past, Present and Future of Media Performance Research
2020
Media performance is constitutive for functioning democracies. But what is the situation regarding media performance in the age of digitalisation? And how can media performance continue to be assured under the current difficult economic conditions for the news industry? In this essay, we give a short overview of how media performance research has developed from the introduction of private broadcasting to the spread of the Internet and social media. In the course of this development, the initial focus of media performance research on media content has broadened to include media quality from the user perspective. We show how the contributions to this thematic issue relate with existing lines …
Social Media as an Opinion Formulator: A Study on Implications and Recent Developments
2019
Social media has a great influence on how information reaches us and how we form an opinion based on it. For many users, social media increases the variety of information and ensure its accessibility across different platforms. However, recent years have seen an exponential increase in the power of social media. Most often, the forwarding and sharing of journalistic articles serve the recommendation from the user's point of view, but recently, these platforms have been developed into an echo chamber to transport additional information or even a critical attitude. In addition, the uncontrolled influx of social media in different parts of the world favors phenomena such as fake news and socia…