[Sigia-l] Best Bets - a Federated Search?

[Richard Wiggins]

Hmmm.  I would say the answer varies based on the implementation.  Your Best
Bets may draw from the same Webspace as your spider, but that doesn't mean
every URL in the Best Bets service is in the index.

All spiders lag a bit in discovering new content.  Some spiders provide
better tools than others for the system administrator to force inclusion of
a new page or site.  A big motivating factor of the Best Bets service that
my group developed was to point to news content.  Our local AltaVista may or
may not have yet discovered a newsy URL when we add it to the best bets
database.

For sure some Best Bets services are part of federated searches.  A major
pharmaceutical company whose IA folks are on this mailing list offers Best
Bets along with results from a couple of different intranet search engines. 
I believe Proquest has products that offer Best Bets for very common
searches and then results from various databases.

Your point about the tradeoff of transparency and usability is interesting. 
I think there's a usability argument in favor of labeling the Best Bets. 
For those who "get it" the label can be positive: "Hmm, I see an editor has
chosen to highlight these hits."  Let's say a new hole in Internet Explorer
is discovered.  This one is nasty.  It sends all your private data to
everyone in your address book, it buys a Corvette on Ebay, it formats your
hard drive, and it turns off the aerator in your aquarium.  If I go to the
Microsoft site and type in any of those effects in the search box on the
home page, and a Best Bet comes up at the top of the list, I have high
confidence that it'll be what I want.  I need the label to know that.

Also, I think typically with Best Bets the payload is a list of URLs just
like a search engine would deliver.  But in ours the metadata is not
identical to what the search engine spits out.  Go to search.msu.edu and
search for "human resources" for an example.  We also sometimes offer in the
hit list something we call Pathfinders; the user who clicks on one of these
sees an annotated hit list.  Go to search.msu.edu and search for "virtual
university" for an example.

Finally, I know of one case where if there is a match the user sees ONLY the
Best Bets, without the beginning of the spider results in the hit list.  Go
to www.berkeley.edu and search for "human resources" for an example.  I
guess you might call that "interposed" instead of "federated"? I bet some
folks won't like the behavior but that's how it works.

/rich




Eric Scheid wrote:

> 
> Is Best Bets an example of a federated search system?
> 
> At first, I thought yes. They are presented in the same segmented manner 
> that federated searches usually are, and they could be implemented on the 
> backend as two distinct databases ... yet ultimately they point to the 
> same destination as the raw index searches. In a way this is akin to 
> meta-search, where some of the search sources cover only a niche  (eg. 
> biomed, or Los Angeles blogs). And yet, in my gut this doesn't sit quite 
> right.
> 
> Anyone care to shed some light on this - are there formal definitions 
> (eg. taught in LIS) for Federated Search?
> 
> Would Yahoo's inclusion of results from it's directory along with the 
> wider "internet search" be considered a best bets search example?
> 
> e.
> 
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____________________________________________________
Richard Wiggins
Writing, Speaking, and Consulting on Internet Topics
rich at richardwiggins.com       www.richardwiggins.com