Agent-based processing of navigational queries in INFOWEAVER

Authors:
Kazunori Katoh;Atsuyuki Morishima;Hiroyuki Kitagawa
Affiliations:
Univ. of Tsukuba, Ibaraki, Japan;Univ. of Tsukuba, Ibaraki, Japan;Univ. of Tsukuba, Ibaraki, Japan
Venue:
Information organization and databases
Year:
2000

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Abstract

We are developing InfoWeaver, an information integration system for the Web, relational databases, and structured document repositories. To collect Web pages required for integration, InfoWeaver deals with navigational queries. In this paper, we present design and evaluation of query processing scheme for navigational queries. In general, navigational queries can cause very lagre data transfer cost if all the necessary pages are transferred to the system. To alleviate this problem, our proposed scheme uses distributed agents, named navigators. They cooperatively take part of the system's functions at Web server sites, to reduce the cost of Web page transfer. This paper includes experimental results on data transfer costs in this scheme.