Internet has completely evolved in recent years, and smart devices, such as mobile and IoT devices have become pervasive in the daily life of people. Internet is becoming more social, and Online Social Networking platforms (OSNs) have become part of the real life of people. Current Online Social Media platforms are centralized. Centralization presents several drawbacks, and during the last years several privacy issues have been arisen concerning the control of private data. Indeed, those platforms offer inadequate guarantees where it concerns the privacy of their users. These problems have been confronted by exploiting decentralized solutions. Decentralized Online Social Networks (DOSNs) guarantee more control over private data. Thanks to the definition of a Next Generation Internet focused on people, the need for a new generation of Decentralized Online Social Networks, which puts the user at the center of the system, has been arisen. The HELIOS project tackles this issue by introducing a new decentralized paradigm. In this paper, we present the Contextual Ego Network (CEN), a new P2P Social Overlay built by exploiting the real life of users. We propose a formal definition of the structure, the implementation of the structure in a Java library, and a preliminary analysis in order to evaluate the homophily of each context.

中文翻译：

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下一代社交网络的上下文自我网络P2P覆盖

近年来，互联网已全面发展，移动和物联网设备等智能设备已广泛渗透到人们的日常生活中。互联网变得越来越社会化，在线社交网络平台（OSN）已成为人们现实生活的一部分。当前的在线社交媒体平台是集中的。集中化带来了一些弊端，并且在最近几年中，出现了一些与私有数据控制有关的隐私问题。确实，这些平台在涉及其用户隐私方面无法提供足够的保证。利用分散解决方案已经面临了这些问题。分散的在线社交网络（DOSN）确保对私有数据的更多控制。多亏了以人为本的下一代互联网的定义，已经出现了对新一代分散式在线社交网络的需求，它将用户置于系统的中心。HELIOS项目通过引入新的分散范式解决了这个问题。在本文中，我们介绍了上下文自我网络（CEN），这是一种通过利用用户的真实生活而构建的新的P2P社会覆盖。我们提出了结构的正式定义，Java库中结构的实现以及初步分析，以评估每个上下文的同构性。