About Text and Themes (retry)

Hi all,

I'm working with Oracle 9.2 and for an application we're going to develop I'm exploring the capabilities of Text's Knowledge Base. We've worked before with Text indexing and Thesauri and now we're focusing on theme qualification of documents through the Knowledge Base using CTX_DOC.THEMES procedure. I've followed all the steps I found in the reference to create a KB in a language different from English (Spanish): loading the thesaurus, compiling the KB and index my documents with a lexer preference that's supposed to index by themes. Everything seems to have worked fine, and actually the about() operator seems active but it never gives any result and if I execute the THEMES procedure directly with the documents I never get any theme for any of them... Is there something else I should know to make it work (like a minimum size or a minimum depth for the Thesaurus, for example)??

Thank you very much

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Francesc Gil