CSR-PDOS: A Scalable and Self-Organizing System Architecture for Fast and Efficient Information Retrieval in Large-Scale Decentralized Networks

去中心化网络有两个主要优点：没有单点故障和容量限制。增加的节点越多，网络可以为用户带来的累积计算能力和内容的潜在增益就越大。然而，这些分布式资源的数量随着时间的推移而急剧增长。因此，一个重要的问题，但具有挑战性的是，如何有效地管理资源，并能够在必要时快速找到他们在网络中，这是高度动态的频繁节点成员的变化。许多作品试图解决这个问题，但只是部分。如果将它们构建在一起，它们可以为用户提供一套很好的服务。不幸的是，这样的组合几乎是不可行的，因为这些技术中的大多数在系统架构设计上根本不同。该项目开发了一个统一的系统基础设施，可扩展，自组织，并为分散网络的用户提供一套全面的快速，准确和高效的信息检索服务。该基础设施包含五个组件：（1）通信，（2）索引，（3）搜索，（4）排名/聚合，以及（5）安全性。预期成果包括基础设施的软件实施，其中包括这些组件的内置技术。开发成果将通过网络、研讨会、出版物和工业合作进行传播。该教育计划旨在显着提高学生的知识，在本科和研究生水平，并为他们未来的专业努力做好准备。该项目适用于任何大型分布式信息共享网络部署在科学，商业和国土安全领域，仅举几例。

Decentralized networks offer two main advantages: no single point of failure and no capacity limitation. The more nodes added, the more potential gain in accumulative computing power and contents that the network can bring to the users. The amount of these distributed resources, however, grows tremendously over time. As such, an important problem, yet challenging, is how to manage the resources efficiently and be able to find them quickly when necessary in a network that is highly dynamic with frequent node membership changes. Many works attempt to address this problem, but only partially. If built together, they could provide a good set of services useful for the users. Unfortunately, such a combination is hardly feasible as most of these techniques differ fundamentally in system architectural design. This project develops a unified system infrastructure, that is scalable, self-organizing, and facilitates a comprehensive set of fast, accurate, and efficient information retrieval services for the users of decentralized networks. This infrastructure contains five components: (1) communication, (2) indexing, (3) search, (4) ranking/aggregation, and (5) security. The expected outcome includes a software implementation of the infrastructure with built-in technologies for these components. The development results will be disseminated via the Web, seminars, publications, and industrial collaborations. The educational plan is designed to significantly advance students' knowledge, at both undergraduate and graduate levels, and prepare them well for future professional endeavors. The project is applicable to any large-scale distributed information-sharing network deployed in the scientific, commercial, and homeland-security fields, to name some.