Re: Word-Level Inverted File Structure

Pete Nayler wrote:
>
> "Jan Hidders" <hidders_at_REMOVE.THIS.win.tue.nl> wrote in message
> news:8s1gs2$mcu$1_at_news.tue.nl...
> > Pete Nayler wrote:
> > >
> > > Thanks for the reply, but in the book, it gives an example of indexing
> > > using a series of documents, giving the word listing as follows:
> > >
> > > cold - <2;(1;6),(4;8)>
> > > hot - <2;(3;2),(6;2)>
> > > warm - <2;(1;3),(4;4)>
> > > etc...
> > >
> > > As you can see, the first term is always "2", which preceeds the
> > > document and then the position. Puzzling...
 

> > Ok. Let's try another guess: the number of documents that the word occurs
> > in?
>
> Hmmmm - you may have it there. But one question.... what purpose would
> that serve? It wouldnt really help in relevance ranking or sorting.
> Seems to me a bizarre thing to have in a string that contains more
> detailed information about the word.

Yes, it would be redundant, but it tells you how selective a word is.

-- 
Kind regards,

    Jan Hidders