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Interest-based content retrieval and dissemination in distributed environments

Zihui Ge, University of Massachusetts Amherst


In many networked applications, ranging from information dissemination services to distributed simulations and virtual worlds to file-sharing applications, a vast amount of information can potentially be accessed by a large number of widely distributed network users. In most cases, each user is interested in only a small subset of all information available. This stimulates tremendous demand for interest-based content retrieval and content dissemination. In this thesis, we first investigate interest-based content retrieval where information consumers actively seek content of interest and then initiate content transmission. We examine such a pull mechanism by analyzing various types of peer-peer file-sharing systems, in which peers first locate their files of interest and then issue requests to download matched files. We next investigate interest-based content dissemination mechanisms in which information providers publish (push) their content through a so-called publish/subscribe (pub/sub) system, and information consumers receive content of interest to them from this system. In particular, we study a method of utilizing multiple multicast groups to scope content dissemination. We also consider an alternative approach that provides content filtering along the content-delivery paths based on the requests of receivers to perform interest-based content dissemination.

Subject Area

Computer science

Recommended Citation

Ge, Zihui, "Interest-based content retrieval and dissemination in distributed environments" (2003). Doctoral Dissertations Available from Proquest. AAI3110488.