Search results for "The Internet"

showing 10 items of 647 documents

A Framework for Parallel Assessment of Reputation Management Systems

2016

Several distributed applications running over the Internet use Reputation Management Systems (RMSs) to guarantee reliable interactions among unknown agents. Because of the heterogeneity of the existing RMSs, their assessment in terms of correctness and resistance to security attacks is not a trivial task. This work addresses this issue by presenting a novel parallel simulator aimed to support researchers in evaluating the performances of a RMS since the design phase. Preliminary results obtained by simulating two different attacks confirm the suitability of the proposed framework to evaluate different RMSs.

Settore ING-INF/05 - Sistemi Di Elaborazione Delle InformazioniCorrectnessbusiness.industryComputer scienceDistributed computing02 engineering and technologyMulti-threaded applicationTask (project management)Human-Computer InteractionDesign phaseParallel simulationComputer Networks and CommunicationDistributed reputation management020204 information systems0202 electrical engineering electronic engineering information engineering020201 artificial intelligence & image processingThe InternetParallel simulationbusinessSoftwareReputation managementProceedings of the 17th International Conference on Computer Systems and Technologies 2016
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Reputation management in distributed systems

2008

Several distributed applications, implemented over today’s Internet, are based on the assumption that participating agents collaborate in order to achieve their own goal. However, when these applications are modelled as unstructured distributed systems, the greater autonomy and decentralization encourage antisocial behaviours, which are likely to cause performance degradation for the whole system. This paper presents a fully distributed reputation management system that allows the evaluation of agent reputation in unstructured environments without any centralized coordination. The proposed approach is based on game theory and is capable of capturing the highly dynamic nature of the involved…

Settore ING-INF/05 - Sistemi Di Elaborazione Delle InformazioniExploitbusiness.industryComputer scienceDistributed computingmedia_common.quotation_subjectComputer securitycomputer.software_genreDecentralizationFree ridingDistributed SystemIncentiveOrder (exchange)The InternetbusinessGame theorycomputerReputationReputationmedia_common2008 3rd International Symposium on Communications, Control and Signal Processing
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Reputation Management for Distributed Service-Oriented Architectures

2010

Nowadays, several network applications require that consumer nodes acquire distributed services from unknown service providers on the Internet. The main goal of consumer nodes is the selection of the best services among the huge multitude provided by the network. As basic criteria for this choice, service cost and Quality-of-Service (QoS) can be considered, provided that the underlying Service-Oriented Architecture (SOA) be augmented in order to support the declaration of this information. The correct behavior of such new SOA platforms, however, will depend on the presence of some mechanisms that allow consumer nodes to evaluate trustworthiness of service providers. This work proposes a new…

Settore ING-INF/05 - Sistemi Di Elaborazione Delle InformazioniService (systems architecture)Distributed SOAbusiness.industryComputer sciencecomputer.internet_protocolQuality of servicemedia_common.quotation_subjectMobile QoSService-oriented architectureService providercomputer.software_genreComputer securityQoS-based Service SelectionThe InternetReputation ManagementWeb servicebusinesscomputerComputer networkReputationmedia_common2010 Fourth IEEE International Conference on Self-Adaptive and Self-Organizing Systems Workshop
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A User-Friendly Interface for Fingerprint Recognition Systems Based on Natural Language Processing

2009

Biometric recognition systems represent a valid solution to the safety problem of internet accessibility, even if they do not always provide an environment easily comprehensible by users and operators with a mid-level of competence. This gap can be partially filled if, instead of using the conventional access routines to the authentication system, the user could simply write to the system through the interface and using high level sentences and requests be able to use its own natural language to reach the intended goal. On the other hand, biometrics features are widely used for recognition and identification all over the world, generating large databases. In this paper a user-friendly inter…

Settore ING-INF/05 - Sistemi Di Elaborazione Delle InformazioniUser FriendlyBiometricsDatabaseHuman-Computer Interaction Biometric Recognition Natural Language Processingbusiness.industryComputer scienceUsabilityFingerprint recognitioncomputer.software_genreHuman–computer interactionThe InternetMessage authentication codeUser interfacebusinesscomputerNatural language2009 International Conference on Complex, Intelligent and Software Intensive Systems
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The ALSWEB Framework: A Web-based Framework for the Linguistic Atlas of Sicily Project

2011

In this work the ALSWEB framework is presented. The ALSWEB is a virtual linguistic laboratory for linguistic research developed as a web application. The purpose of the framework is to model the entire process regarding the different steps of data acquisition, data transformation, information acquisition from different data and research hypotheses verification in the ALS (Linguistic Atlas of Sicily) project. The nature of the ALS research involves different type of data. The socio-linguistic researcher that is the main actor of the proposed framework has to acquire information in many formats: multimedia data, audio data, question-answer (textual) from particular questionnaires. In this wor…

Settore ING-INF/05 - Sistemi Di Elaborazione Delle Informazionibusiness.industryComputer sciencecomputer.internet_protocolVirtual realityPragmaticsData scienceLinguisticsSoftwareKnowledge extractionKnowledge Discovery Linguistic Annotation XML Data IntegrationWeb applicationThe InternetbusinesscomputerXML2011 IEEE International Conference on Advanced Information Networking and Applications
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Measurement invariance of the nine-item Internet Gaming Disorder Scale (IGDS9-SF) across Albania, USA, UK, and Italy

2018

The IGDS9-SF, which assesses Internet Gaming Disorder behaviors, has been validated in a number of countries (Portugal, Italy, Iran, Slovenia), although the psychometric equivalence of the instrument has been assessed only across Australia, the USA, the UK, and India. This research aimed at providing further cross-cultural insights into IGD by assessing the factorial structure of the IGDS9-SF in Albania and investigating its measurement invariance across Albanian, Italian, American, and British gamers. Multi-Group Confirmatory Factor Analyses were performed on a sample of 1411 participants from Albania (n = 228), USA (n = 237), the UK (n = 275), and Italy (n = 671). The CFAs confirmed the s…

Settore M-PSI/01 - Psicologia GeneraleVideo gamingbusiness.industry030508 substance abusePsychometric equivalencemanop030227 psychiatry03 medical and health sciencesPsychiatry and Mental healthHealth psychology0302 clinical medicineScale (social sciences)Internet Gaming Disorder.Gaming addiction.Video gaming.IGDS9-SF.Cross-cultural validation.Measurement invarianceThe InternetMeasurement invarianceMetric (unit)0305 other medical sciencebusinessPsychologyClinical psychology
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Design and analysis of discrete choice experiments for models with response time

2013

Settore SECS-S/02 - Statistica Per La Ricerca Sperimentale E TecnologicaA sector of conjoint analysis (experimental design in marketing research) is made of the so called choice experiments. In choice experiments respondents undergo a questionnaire which is nowadays mostly submitted through the internet. The questionnaire proposes to the respondent a sequence of choice sets each one including two or more profiles being a profile a specific combination of attribute levels. The respondent selects the preferred profile for each choice set. Responses given by a sample of respondents are analysed through suitable methods aimed to eventually find the best combination of attribute levels. One method of analysis adopts the Multinomial Logit (MLN) model. In this article the authors show the results of the MLN analysis compared with another model of analysis which uses an additional response which can be easily recorded by electronically submitted questionnaires. In practice modern survey platforms like “Qualtrics” (the one used for this work) can record the so called “response latency” i.e. the time taken by the respondent to make the choice and select the most preferred profile in the choice set. Thanks to a response latency model further refined in this work it is possible to deduce the relative weight of importance of the profiles for each choice set and respondent. This type of response can be used in place of the dichotomous choice variable in the MLN model. The two models and methods of analysis are deeply compared and it is critically discussed when it is better to use one or the other method. As a result a more reliable estimate of the optimal profile comes up implying lower risks for new investments and marketing decisions.
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Smartphone Usage Among Millennial in Finland and Implications for Marketing Segmentation Strategies: Lessons for Nigeria

2018

The study examines smart phone usage by millennials based on different criteria of operating system, Wi-Fi, text messaging, internet surfing and social media. The study used quantitative methodology and data were gathered with online questionnaires with 391 young smartphone users in Finland. The Millennial were clustered into five levels. The results reveal the prominent status of profiling in a developed market and how marketers in emerging markets can apply segmentation and targeting strategies using instant messaging, text messages, email, mobile app, gamification and social media based on the profile of each segment. Nigerian policy makers should adopt a framework to make smartphone aff…

Smart phoneInternet privacyNigeriasosiaalinen media050801 communication & media studiesComputer-assisted web interviewingMillennialsmartphone0508 media and communicationsMarket segmentationSuomi0502 economics and businessProfiling (information science)Social mediaDeveloped marketEmerging marketstargetingFinlandbusiness.industry05 social scienceskohderyhmätälypuhelimetsegmentointimarkkinointi050211 marketingThe InternetBusiness
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In rete la cucina è politica. Alcuni modelli di analisi e uno studio di caso.

2013

Gastronauti e chowhounds, ghiottoni, gourmand e gourmet, in una parola foodies: l’attuale megatrend culinario deve molto alle pratiche di socializzazione su Internet. Di cibo, in rete, si comincia a scrivere fin da subito (i board di Chowhound, per esempio, aprono i battenti già nel 97), la qual cosa dice anche molto su quanto la “grande conversazione” sia debitrice del discorso gastronomico. Il cibo e le chiacchere su Internet si presentano, infatti, come intrinsecamente legati, classico binomio inscindibile. In tutto il mondo, blogger e storyteller culinari diventano, pertanto, autori di culto, in grado di generare schiere di fedeli lettori pronti a seguire il proprio beniamino ovunque, s…

Social Media Semiotics The Internet Social Media and Collaborative Technologies Social Networking Cavoletto di Bruxelles Food Politics Politics Semiotics of Food Anthropology of Food Food and Nutrition Foodblogs Food Bloggings Social Webbings & Other Emergent Writing/Reading Forms Bloggers Blogs Blogging the Blogosphere Blogs Online Communities of Practice Online Communities Sociosemiotics Social SemioticsSettore M-FIL/05 - Filosofia E Teoria Dei Linguaggi
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Studying micro-communities in Facebook Communities

2018

In the visionary view of the future Internet, named the Next Generation Internet, a current idea is to have a user-centric approach where human behavior models will be used to define the networks or to manage services. During the last years, a great trend in current Social Media platforms is to offer the opportunity to establish and join groups of people online. Despite human behaviour in current Online Social Media have been studied in depth, characteristics of these aggregations of people in content-based communities are still unknown. In this paper, we propose an evaluation of micro-communities of users inside the big network of Facebook groups to understand how and when users are active…

Social Networks AnalysiSettore INF/01 - Informaticabusiness.industryInternet privacyComplex NetworkCommunity Detection; Complex Networks; Facebook Groups Analysis; Social Networks Analysis020206 networking & telecommunications02 engineering and technologyComplex networkComplex NetworksHuman-Computer InteractionSocial groupComputer Networks and CommunicationFacebook Groups AnalysiFacebook Groups Analysis0202 electrical engineering electronic engineering information engineering020201 artificial intelligence & image processingThe InternetSocial mediaSociologySocial Networks AnalysisbusinessCommunity DetectionSoftware1707Proceedings of the 4th EAI International Conference on Smart Objects and Technologies for Social Good
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