----- Original Message ----
> From: Drew Farris <[email protected]>
> 
> On Fri, Jan 8, 2010 at 12:06 AM, Robin Anil wrote:
> 
> > I like the Formulation that Drew made, using n-1 grams to generate n-grams.
> 
> I think Ted first mentioned n-1 grams, and I ran with it. It is very
> useful to think about the problem this way.


I think I missed this.  Could you please explain the n-1 gram thinking and why 
that is better than thinking about n-grams as n-grams?

Thanks,
Otis

> One questions about the concept of n-1 grams however. When n is 3 for
> example, are we really interested in the collocation of bigrams, or
> are we interested in non-overlapping tokens? For example, given the
> tri-gram 'click and clack', should we be looking at 'click and' and
> 'and clack', or are should we be analyzing 'click', 'and clack' or
> 'click and' and 'clack''? I suspect it is the first form because that
> extends easilly to values larger than 3, but it's worth confirming.

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