How is the Directory Match Selected?

Google Directory & SERPs: How come?

[muesli]

<edit> title should have been "how come" ;-)

hi,

i just discovered a strange thing: when is search for "domain", my site being www.domain.com (while "domain" being a specific brand) on google directory i get a strange result:

it finds:

found categories:

category A (matching my site very well, country category for my second biggest market austria. just that my site is NOT listed there.)

found sites:

and my site on first position, with category B beneath (matching my site very well, too, language based directory for my main language german, in which my site is listed)

strange:

why is a category (A) found where my site is NOT listed? (although it would fit very well)

why is the category (B) where my site IS listed not found above the green bar?

"domain" is a brand that has nothing to do with the general topic.

might be a greenhorn-question, sorry.
muesli

[ciml]

Good question muesli. I don't know how Google pick the category match for a search (as opposed to the category under an individual result).

Anyone?

[Marcia]

Is it possible Term Vector Database [www9.org] has something to do with it?

In the vector space model of information retrieval ([Salton 71]), documents are modeled as vectors in a high-dimensional space of many thousands of terms. The terms are derived from words and phrases in the document and are weighted by their importance within the document and within the corpus of documents. Each document's vector seeks to represent the document in a "vector space", allowing comparison with vectors derived from other sources, for example, queries or other documents.