Peer-to-peer systems have emerged as a significant social and technical phenomenon, and they are likely to gain popularity as low-cost individual computing and storage resources become more widely available and network connectivity increases. Unlike traditional distributed systems, P2P networks aggregate large numbers of computers that join and leave the network frequently and that might not ha...

To join an unstructured peer-to-peer network like Gnutella, peers have to execute a bootstrapping function in which they discover other on-line peers and connect to them. Until this bootstrapping step is complete, a peer cannot participate in file sharing activities. Once completed, a peer’s search and download experience is strongly influenced by the choice of neighbor peers resulting from the...

I INTRODUCTION The recent emergence of novel network applications such as Gnutella, Freenet, and Napster has reincarnated the familiar peer-to-peer (P2P) architecture model of the original Internet in new and innovative ways in an effort to facilitate worldwide sharing of information [1]. As a result, there is an ever-increasing need for distributed protocols that would allow peer-to-peer appli...

I INTRODUCTION The recent emergence of novel network applications such as Gnutella, Freenet, and Napster has reincarnated the familiar peer-to-peer (P2P) architecture model of the original Internet in new and innovative ways in an effort to facilitate worldwide sharing of information [1]. As a result, there is an ever-increasing need for distributed protocols that would allow peer-to-peer appli...

Peer-to-Peer (P2P) computing has emerged as a significant paradigm for providing distributed services, in particular search and data sharing. Current P2P networks (e.g., Gnutella) are constructed by participants following their own uncoordinated (and often whimsical) protocols; they consequently suffer from frequent network overload and partitioning into disconnected pieces separated by choke p...

This paper presents a framework for identifying the legal risks associated with performing network forensics on public networks. The framework is discussed in the context of the Gnutella P2P network protocol for which the legal issues related to authorized access have not yet been

Predicting artists that are popular in certain regions of the world is a well desired task, especially for the music industry. Also the cosmopolitan and cultural-aware music aficionado is likely be interested in which music is currently “hot” in other parts of the world. We therefore propose four approaches to determine artist popularity rankings on the country-level. To this end, we mine the f...

Efficient content location is a fundamental problem for decentralized peer-to-peer systems. Gnutella, a popular file-sharing application, relies on flooding queries to all peers. Although flooding is simple and robust, it is not scalable. In this chapter, we explore how to retain the simplicity of Gnutella while addressing its inherent weakness: scalability. We propose two complementary content...

Genealogical research can be signi cantly enhanced through real-time collaboration. Such collaboration reduces redundant research and provides timely information that can better guide one to discover new knowledge. In real-time collaboration, information recorded by one participant is nearly instantaneously and automatically broadcast to all other people interested in that information. Upon rec...

Peer-to-Peer (P2P) systems allow participants to share their computational, storage, and networking resources to the benefit of every participant. Most P2P systems assume that all participants in the system follow the protocols and observe the system’s fair use policies. However, in a system with open or loosely controlled membership, participants have a self-interest in modifying their behavio...