On Tue, Apr 5, 2011 at 8:41 AM, Alexander Korotkov <aekorotkov@gmail.com> wrote:
> For example, here is distribution of q-grams count in 120 Mb of dblp paper
> titles (pretty large dataset).
> q count
> 2 7218
> 3 115107
> 4 589428
> 5 1648453
> 6 3336685
> Number of 5-grams if about 15x larger than number of 3-grams. But most part
> of index space will be occupied by links to the rows(about 120 millions of
> links), while size of q-grams itself will be almost ignorable in comparison
> with it.
I am probably being stupid here, but doesn't the number of links to
rows grow proportionately to the number of n-grams?
--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
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