Peer-to-Peer Information Retrieval

Information Retrieval in Peer to Peer Systems

Information Retrieval in Peer-to-Peer Networks

Peer-to-Peer (P2P) systems are application layer networks which enable networked hosts to share resources in a distributed manner. An important problem in such networks is to be able to efficiently search the contents of other peers. In this paper we present a survey of search techniques for information retrieval in P2P networks, including recent techniques proposed by the authors. We also pres...

Peer-to-Peer Private Information Retrieval

Private information retrieval (PIR) is normally modeled as a game between two players: a user and a database. The user wants to retrieve some item from the database without the latter learning which item. Most current PIR protocols are ill-suited to provide PIR from a search engine or large database: i) their computational complexity is linear in the size of the database; ii) they assume active...

Information Retrieval in Peer-to-Peer Systems

Applying information retrieval techniques in peer-to-peer infrastructures is a demanding challenge. Peer-to-peer systems are already being used for a vast number of applications in content exchange, but mostly searching is done by simple keyword lookups. In contrast, information Retrieval techniques vastly differ from retrieval in pure data management systems. Information retrieval means that n...

PeerSearch: Efficient Information Retrieval in Peer-to-Peer Networks

In this paper, we propose an efficient peer-to-peer information retrieval system PeerSearch that supports state-of-the-art content and semantic searches. PeerSearch avoids the scalability problem of existing systems that employ centralized indexing, index flooding, or query flooding. It also avoids the non-determinism that exhibited by heuristic-based approaches. PeerSearch achieves both effici...