Search engines are important but generally far from ideal tools of the Worl
d Wide Web (WWW). Many researchers therefore prefer to use meta-brokers to
construct multi-search engines (MSE). However, these have no uniform progra
mming interfaces, which makes tying them with other search engines difficul
t. Moreover, for an application that needs a search service capability, que
rying them is difficult.
To reduce that difficulty, we propose in this paper an Internet search serv
ice (ISS) based on common object request broker architecture (CORBA) that f
ollows the style of common object service specification (COSS). We design a
multi-search engine based on ISS, which we term Octopus. For a system deve
loper, because of its uniformity of interface, Octopus easily ties with any
search engine. Equally, for an application programmer, the ISS offers a cl
ear interface for application programs to search for information or mine da
ta from the Internet. We demonstrate our approach to designing multi-search
engines through ISS by tying two search engine agents, Yahoo and Alta Vist
a, with Octopus and show how CORBA clients query them. Programmers may use
this interface to construct their search engine agents or query a search en
gine agent in their applications. (C) 2000 Elsevier Science B.V. All rights
reserved.