Not really.  With off-line use, you can amortize the cost of sorting across
all items.  This allows very tight encodings in some cases.  In on-line
(real-time actually) use you have the problem that you can't amortize
anything because you have a worst case constraint.

Essentially, this is the difference between hadoop and OLTP relational
databases.

On Mon, Aug 31, 2009 at 10:34 AM, Sean Owen <sro...@gmail.com> wrote:

> This is definitely for on-line use. Though I imagine strategies for
> efficient storage pertain well to both the off- and on-line case.
>



-- 
Ted Dunning, CTO
DeepDyve

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