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A. F. Salam and Jason R. Stevens

"Semantic Web Technologies and E-Business: Toward the Integrated Virtual Organization and Business Process Automation"

A typical product ontology
Guan and Zhu
Copyright ?© 2007, Idea Group Inc. Copying or distributing in print or electronic forms without written permission
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intelligence, and may also need some interaction from its owner. The last choice is
to interact with other agents for ontology acquisition or exchange, and this is the
focus of this chapter.
Ontology rule is a basic representation format for agent ontology and is suitable
to be exchanged among agents. Actually, ontology rules can be inferred from the
ontology tree. Here we give some definitions for ontology rules. Table 1 lists some
examples of ontology rules.
::=
::=
::=??¦
::=
::=
::=
::= |
::= ??¦
::=
Ontology is an essential knowledge base for software agents. For the aforementioned
product-brokering agents, product ontology can help query reformulation
with several factors:
??? shape up a user request by query expansion along the downward direction of
the ontology tree;
??? widen a query scope context along the upward direction of the ontology
tree;
??? disambiguate a user request by finding the context relevant to the request;
and
??? reformulate a query within the same context or even by going from one context
to a different context that fits better with respect to the actual wishes of the
user.


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