7 research outputs found

    Towards Psychometrics-based Friend Recommendations in Social Networking Services

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    Two of the defining elements of Social Networking Services are the social profile, containing information about the user, and the social graph, containing information about the connections between users. Social Networking Services are used to connect to known people as well as to discover new contacts. Current friend recommendation mechanisms typically utilize the social graph. In this paper, we argue that psychometrics, the field of measuring personality traits, can help make meaningful friend recommendations based on an extended social profile containing collected smartphone sensor data. This will support the development of highly distributed Social Networking Services without central knowledge of the social graph.Comment: Accepted for publication at the 2017 International Conference on AI & Mobile Services (IEEE AIMS

    Nahtlose InteroperabilitÀt und DatenportabilitÀt in sozialen Netzen zur Umsetzung einer offenen und heterogenen Föderation von sozialen Netzwerkplattformen

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    Online Social Networks (OSN) have become an integral part of our everyday lives. We express ourselves, create and collect content such as images or videos, share content and information with our friends and colleagues, exchange messages, or keep track of what's happening in the world. Yet, despite social communication being implicitly a distributed, decentralized phenomenon, most OSN services are built in a central, monolithic fashion, concentrating all knowledge and power in one company or organization. This contradicts the idea of the social web, as proprietary and isolated walled gardens keep users from being able to freely choose an OSN platform provider or to effectively control their privacy. In order to mitigate the problem, alternative architectures that distribute control and data to multiple independent services were proposed. Unfortunately, the implicit network effects existing in large OSN services still prevent users from migrating to alternative solutions in significant numbers. Moreover, technical protocols for facilitating holistic and seamless interoperability and furthermore data portability in OSN services do not exist. Ultimately, today's OSN market is dominated by one single service which has been able to attract a significant amount of users, while a large number of competing services and alternative solutions exist that combine a comparably small number of users. Two main issues have been identified that contribute to the current situation of one OSN service heavily dominating the entire market, being the lack of data portability and interoperability between different OSN services. This work proposes Sonic, a solution that aims to interconnect arbitrary OSN services into one open and heterogeneous federation of OSN services. Sonic introduces an open communication protocol and data formats that are able to facilitate interconnectivity of OSN services. The proposed architecture supports core features implemented in today's most popular OSN services and facilitates extended functionality through an extensibility framework.Online Social Networks (OSN) sind zu einem integralen Bestandteil unseres tĂ€glichen Lebens geworden. Wir artikulieren unsere Meinung, erstellen und sammeln Bilder und Videos, teilen Inhalte und Informationen mit unseren Freunden und Kollegen, kommunizieren und halten uns auf dem Laufenden ĂŒber Geschehnisse in der Welt. Doch obwohl soziale Kommunikation inhĂ€rent ein verteiltes, dezentrales PhĂ€nomen ist, folgen die meisten OSN Dienste in einer zentralistischen und monolithischen Konzeption, welche alles Wissen und alle Macht einer einzigen Organisation ĂŒberlĂ€sst. Dies lĂ€uft der Idee des sozialen Webs zuwider, da proprietĂ€re und isolierte Plattformen Nutzer daran hindern, selbstbestimmt eine Netzwerkplattform zu wĂ€hlen oder die Kontrolle ĂŒber ihre Daten zu behalten. Um das Problem zu beheben, wurden alternative Architekturen entworfen, durch welche Kontrolle und Daten auf mehrere unabhĂ€ngige Dienstplattformen verteilt wird. Allerdings hindern die impliziten Netzwerkeffekte großer Netzwerke Nutzer daran, in signifikanter Anzahl zu alternativen Angeboten zu migrieren. DarĂŒber hinaus existieren keine Protokolle, welche ganzheitliche und nahtlose InteroperabilitĂ€t und darĂŒber hinaus DatenportabilitĂ€t in OSN Diensten ermöglichen. Im Resultat wird der heutige OSN Markt von einem einzigen Dienst dominiert, welcher in der Lage war, eine signifikante Anzahl an Nutzern zu gewinnen, wĂ€hrend eine große Anzahl an konkurrierenden Diensten und alternativen Angeboten existiert, auf welche sich eine verhĂ€ltnismĂ€ĂŸig kleine Zahl an Nutzern vereint. Zwei Probleme konnten hierbei als Hauptursache fĂŒr die aktuelle Situation, in welcher ein OSN Dienst den gesamten Markt stark dominiert, identifiziert werden. Hierbei handelt es sich um die fehlende UnterstĂŒtzung von DatenportabilitĂ€t und InteroperabilitĂ€t zwischen verschiedenen OSN Diensten. Das vorliegende Werk stellt Sonic vor, eine Lösung zur Anbindung beliebiger OSN Dienste untereinander in einer heterogenen Föderation von OSN Diensten. Sonic spezifiziert ein offenes Kommunikationsprotokoll sowohl als auch Datenformate, durch welche InterkonnektivitĂ€t von OSN Diensten ermöglicht wird. Die vorgestellte Architektur unterstĂŒtzt die KernfunktionalitĂ€ten heutiger OSN Dienste und ermöglicht darĂŒber hinaus eine UnterstĂŒtzung erweiterter FunktionalitĂ€ten ĂŒber ein Erweiterungsframework.BMBF, 01IS12056, Software Campus (TU Berlin)EC/H2020/645342/EU/Trustful hyper-linked entities in dynamic networks/ReThin

    Global Identity and Reachability Framework for Interoperable P2P Communication Services

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    International audienceAdvancements in web real time technologies are revolutionizing the way communication is taking place, where new emerging web services are confronting the traditional Telco operated communication services. This has led to the development of new web-centric service architecture that will allow service providers to provide their communication services globally. This architecture uses web based communication techniques that enables endpoints to become a mesh of live users, who can communicate in a peer-to-peer fashion. To distinguish such a service from current ‘best effort Internet', it must be supported by appropriate governance, trust and security features. This distributed architecture presents new issues regarding authentication of non-service-bound user identities, finding users reachable addresses and providing a trustworthy communication environment. To provide these support services this paper introduces four different components namely: Identity Management, Policy & Governance, Graph connector and Directory services
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