Title:    XTreeNet: A Scalable Unified Overlay Network with Efficient XML Content Access
          Methods in Distributed Networks

Authors:  Emiran Curtmola, UC San Diego
          Alin Deutsch, UC San Diego
          Divesh Srivastava, AT&T Labs

Abstract:

Increasing amounts of data are being created and distributed using eXtensible Markup
Language (XML). XTreeNet is an XML aware overlay network designed to efficiently support
two of the major content access models - publish/subscribe and query/response - in a 
unified system.  Additionally, XTreeNet alleviates the "whom to ask" and "whom to tell"
problem of connecting consumers and producers.  XTreeNet uses the concept of content 
descriptors (CDs) and core-based CD distribution trees to provide fast routing within the 
overlay. We will focus on the problem of query routing in P2P networks. Using techniques 
such as Bloom Filters for the data summaries and partitioning the data space into relevant
subsets we present the different trade-offs and explore efficient access methods for the
purpose of scalability, higher network throughput, balanced workload per node.