Search results for " internet"
showing 10 items of 1234 documents
Search Interfaces and Learning about Controversial Topics
2019
Search engine results pages (SERPs) are a frequent gateway to Internet content. Prior research has extensively documented strong effects of SERPs (e.g. rank order or the spatial distribution of the results) on users' attention to and selection of particular Web pages [1,2]. In the context of Web search, a common user behavior is the 'top link' or 'Google trust' heuristic, that is, the inspection and selection of only the first few search results presented by the search engine, without evaluating all other search results available. This heuristic behavior allows users to find information in an efficient way, as search engines tend to provide relevant documents on top of the list, especially …
Semantic Annotation and Retrieval of Services in the Cloud
2013
Recently, the economy has taken a downturn, which has forced many companies to reduce their costs in IT. This fact has, conversely, benefited the adoption of innovative computing models such as cloud computing, which allow businesses to reduce their fixed IT costs through outsourcing. As the number of cloud services available on the Internet grows, it is more and more difficult for companies to find those that can meet their needs. Under these circumstances, enabling a semantically-enriched search engine for cloud solutions can be a major breakthrough. In this paper, we present a fully-fledged platform based on semantics that (1) assist in generating a semantic description of cloud services…
Prank – gdzie przebiega gra-nica internetowej rozgrywki?
2019
Artykuł podejmuje temat pranku – gry, która podbija obecnie internet, a dokładnie przestrzeń wideoblogów, gdzie realizuje się z największym rozmachem. Celem tekstu jest zdefiniowanie pojęcia pranku przede wszystkim w odwołaniu do jego przedstawień w wideoblogach. Istotną część wywodu stanowi ukazanie przebiegu pranków uznanych za najbardziej ekstremalne – pozorujące śmierć, wypadek, ciążę, odurzenie itp. Całość rozważań zmierza do odpowiedzi na pytania: czy można wyznaczyć granice owej gry? Czy grających obowiązują jakiekolwiek normy i ograniczenia? I wreszcie – jakie są lub mogą być niepożądane skutki tej rozgrywki?
Latviešu influenceru priekšstati par atbildību auditorijas priekšā, publicējot apmaksātu saturu sociālajā tīklā YouTube
2019
Bakalaura darba “Latviešu influenceru priekšstati par atbildību auditorijas priekšā, publicējot apmaksātu saturu sociālajā tīklā YouTube” galvenais mērķis ir noskaidrot latviešu YouTube influenceru izpratni par atbildību publicējot apmaksātu saturu un cik ļoti tas atbilst novērojumiem viņu YouTube kanālos. Darba teorētisko daļu veido trīs nodaļas – sociālie mediji, reklāma internetā un medijpratība. Darba empīriskajā daļā izmantota kontentanalīze, lai analizētu četru YouTube kanālu saturu 2019. gada februāra – marta griezumā. Pēc tam izmantotas daļēji strukturētās intervijas, lai intervētu blogu autorus. No pētījuma rezultātiem izriet vairāki secinājumi, kas parāda to, ka influenceri lielu …
Multipath extensions to the DYMO routing protocol
2007
Multipath routing is a technique that can improve performance, specially in mobile ad hoc networks. Due to traffic dispersion it can perform load balancing; minimize the energy consumed by nodes or prevent traffic analysis. In this work we focus on enhancing the DYMO protocol to support multipath routing. We study the impact of traffic dispersion on both UDP and TCP traffic when varying a set of parameters.
PTNet: An efficient and green data center network
2017
International audience; In recent years, data centers have witnessed an exponential growth for hosting hundreds of thousands of servers as well as to accommodating a very large demand for resources. To fulfill the required level of demand, some approaches tackled network aspects so to host a huge number of servers while others focused on delivering rapid services to the clients by minimizing the path length between any two servers. In general, network devices are often designed to achieve 1:1 oversubscription. Alternatively, in a realistic data center environment, the average utilization of a network could vary between 5% and 25%, and thus the energy consumed by idle devices is wasted. This…
Comparative Study of the Mobile Learning Architectures
2016
International audience; With the emergence of mobile devices (Smart Phone, PDA, UMPC, game consoles, etc.), learning is changing from electronic learning (e-Learning) to mobile learning (m-learning). In fact, due to the mobility feature, it seems that the m-learning have to be adapted with the change within the context. Several researches addressed this issue and implemented a mobile learning environment to prove its usefulness and feasibility in various domains. In this article, we conduct a comparative study between a list of mobile learning architectures and methods that are presented in the literature. The performance of these architectures is evaluated based on several criteria, such a…
Extending CSG with projections: Towards formally certified geometric modeling
2015
We extend traditional Constructive Solid Geometry (CSG) trees to support the projection operator. Existing algorithms in the literature prove various topological properties of CSG sets. Our extension readily allows these algorithms to work on a greater variety of sets, in particular parametric sets, which are extensively used in CAD/CAM systems. Constructive Solid Geometry allows for algebraic representation which makes it easy for certification tools to apply. A geometric primitive may be defined in terms of a characteristic function, which can be seen as the zero-set of a corresponding system along with inequality constraints. To handle projections, we exploit the Disjunctive Normal Form,…
Ontology and protocol secure for SCADA: Int. J. of Metadata, Semantics and Ontologies, 2014 Vol.9, No.2, pp.114 - 127
2014
International audience; In this work, we present a semantic cyber security system and we study its semantic intelligent systems vulnerabilities, focusing on the semantic attacks. For resolving semantic problems we propose a security global solution for the new generation of SCADA systems. The proposed solution aims at protecting critical semantic SCADA processes from the effects of major failures and semantic vulnerabilities in the modern IT-SCADA network. We used a security block in the global network access point, security protocols deployed in different network (OSI) levels and security ontologies deployed in security devices. We used our mixed coordinates (ECC) cryptography solution, th…
Guest Editors' Introduction: Multimedia Metadata and Semantic Management
2009
This special issue assesses the current status and technologies and describes major challenges and proper solutions for effective multimedia production and management related to evolving Semantic Web strategies. The included articles, which cover different facets of the semantic management of multimedia and multimedia metadata from retrieval and processing to consumption and presentation, represent a step forward in research targeted at improving aspects of the semantic metadata life cycle.