On Thu, 3 Jul 1997, Stu Weibel wrote:
> <meta name= "dc.coverage.placename"
> content= "Hull, Yorkshire, England, United Kingdom, Great Britain, UK">
>
> would reflect a perspective that treats the name as a single entity, and
>
The current usage "keywords" content="frogs, toads, freshwater amphibians"
is in conflict (though I think it's informal and some/all search engines
throw away the commas)
> <meta name= "dc.coverage.placename"
> content= "Hull: Yorkshire, England: United Kingdom: Great Britain: UK">
>
> would reflect a slightly different organization of terms.
Just to muddy the waters even further, and putting aside the "alias"
stuff , suppose I have a document that refers to both Vancouver and
Victoria, BC. (not Vancouver, WA or Victoria, HK ...)
should I put
... placeName" content="Vancouver, BC, Canada"
and
... placeName" content="Victoria, BC, Canada"
or just
... placeName" content="Vancouver, Victoria, BC, Canada"
(as one might in the common "keywords" scheme)
or
... placeName" content="Vancouver:BC:Canada, Victoria:BC:Canada"
(I'd probably require BC expanded to "British Columbia" ...)
My gut feeling is that a document that refers to more than one entity
is allowed one metadata item per entity per scheme.
In terms of searching, I might want to find all documents about frogs
in Vancouver, so (maybe) given documents 1-5
title" content="Frogs and their habits"
[1] placeName" content="Vancouver, BC, Canada"
[1] placeName" content="Victoria, BC, Canada"
[2] placeName" content="Victoria, Hong Kong"
[3] placeName" content="Vancouver, WA, USA"
[4] placeName" content="Vancouver, BC, Canada"
[5] placeName" content="Vancouver, WA, USA"
[5] placeName" content="Osoyoos, BC, Canada"
Search for "frogs" IN TITLE AND ( "vancouver" AND "canada" )
IN PLACENAME
or (Perl again, allowing multiple placenames but not multiple titles ...)
foreach $placeName (@placeName) {
$match += ( $title =~ /frogs/i) && ( $placeName =~
/Vancouver[\W].*Canada/i) ;
}
I'd hope to find documents 1 and 4 (but not 5, which was about frogs in
Osoyoos and frogs in Vancouver, WA, but not Vancouver, BC)
Does this seem reasonable ?
Of course, my example search is going to fail to find documents about
frogs in Canada, which might be considered to encompass frogs in
Vancouver, Canada. I'll leave that the human in charge to sort out ... :-)
Andrew Daviel
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