Learning Profiles for Heterogeneous Distributed Information Sources


  • Hans Friedrich Witschel


Peer-to-peer network, information retrieval, query routing


This paper experimentally studies approaches to the problem of describing heterogeneous information sources in distributed environments. In particular, we consider a scenario where a large number of end users can share and retrieve text documents over a peer-to-peer network. Descriptions (or profiles) of peers are useful in a number of applications, such as query routing, overlay construction and expert search. The approach proposed in this paper introduces a new learning method that boosts the weight of query terms in a peer's profile when the peer provides useful documents w.r.t. a given query. Experimental results show high potential for this method. Therefore, various extensions are proposed that involve more user interaction.


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Author Biography

Hans Friedrich Witschel

SAP Research CEC Karlsruhe
Vincenz-Priessnitz-Str. 1
76131 Karlsruhe, Germany




How to Cite

Witschel, H. F. (2012). Learning Profiles for Heterogeneous Distributed Information Sources. COMPUTING AND INFORMATICS, 29(4), 571–584. Retrieved from https://www.cai.sk/ojs/index.php/cai/article/view/101