Publication - A Dynamically Formed Hierarchical Agent Organization for a Distributed Content Sharing System

Authors: Zhang, Haizheng; Lesser, Victor
Title: A Dynamically Formed Hierarchical Agent Organization for a Distributed Content Sharing System
Abstract: The organization and collaborative protocols of agent societies are becoming increasingly important with the growing size of agent networks. Particularly, in a multi-agent based content sharing system, a flat, peer-to-peer(P2P) agent organization is not the most efficient organization for locating relevant agents for queries. This paper develops and analyzes a hierarchical agent group formation protocol to build a hybrid organization for large-scale content sharing system as well as a content-aware distributed search algorithm to take advantage of such an organization. During the organization formation process, the agents manage their agent-view structures to form a hierarchical topology in an incremental fashion. The algorithm aims to place those agents with similar content in the same group. We evaluate the system performance based on TREC VLC 921 datasets. The results of the experiment demonstrate a significant increase in the cumulative recall ratio(CRR) measure compared to the flat agent organization and structure.
Keywords: Information Retrieval
Publication: Proceedings of the International Conference on Intelligent Agent Technology (IAT 2004), pp. 169 - 175
Location: Beijing
Publisher: IEEE Computer Society
Date: 2004
Sources: PDF: /Documents/haizheng_tr.pdf
Notes: A longer version is available as UMass Computer Science Technical Report 04-47
Reference: Zhang, Haizheng; Lesser, Victor. A Dynamically Formed Hierarchical Agent Organization for a Distributed Content Sharing System . Proceedings of the International Conference on Intelligent Agent Technology (IAT 2004), IEEE Computer Society, pp. 169-175. 2004. A longer version is available as UMass Computer Science Technical Report 04-47
bibtex: 
@inproceedings{Zhang-373,
  author    = "Haizheng Zhang and Victor Lesser",
  title     = "{A Dynamically Formed Hierarchical Agent
               Organization for a Distributed Content Sharing
               System }",
  booktitle = "Proceedings of the International Conference on
               Intelligent Agent Technology (IAT 2004)",
  publisher = "IEEE Computer Society",
  pages     = "169-175",
  year      = "2004",
  address   = "Beijing",
  url       = "http://mas.cs.umass.edu/paper/373",
}