The web seems to be the biggest existing information repository. The extraction of information from this repository has attracted
the interest of many researchers, who have developed intelligent algorithms (wrappers) able to extract structured syntactic
information automatically.
In this article, we formalise a new solution in order to extract knowledge from today’s non-semantic web. It is novel in that
it associates semantics with the information extracted, which improves agent interoperability; furthermore, it achieves to
delegate the knowledge extraction procedure to specialist agents, easing software development and promoting software reuse
and maintainability.
Keywords knowledge extraction - wrappers - web agents and ontologies
The work reported in this article was supported by the Spanish Interministerial Commission on Science and Technology under
grants TIC2000-1106-C02-01 and FIT-150100-2001-78.