How much more costly would it be to specify an intersection of two tags than a union? The current implementation already lets you do a union (all entries that are either tagged with any of gossip OR school); I'm not sure how much worse an intersection would be.
IIRC, I saw a comment conversation about that in LJ once, and the problem appeared to be with syntax (how do you make sure you can correctly parse all combinations of ORs and ANDs?) rather than cost. On Fri, Aug 8, 2008 at 1:05 PM, <[EMAIL PROTECTED]> wrote: > > >> While I love a nice orderly hierarchy, I'm not sure that tags >> necessarily lend themselves to them. Certainly they can, but they also >> lend themselves to non-hierarchical grouping (hence bundles at >> del.icio.us). A discussion of this trend can be found here: >> http://www.shirky.com/writings/ontology_overrated.html (I had another, >> even more pertinent article but have misplaced the link). Perhaps >> bundlable bundles of tags would be a way to go much the way flickr.com >> uses collections would satisfy highly organized folks of both the >> hierarchical and non-hierarchical type? > > You know... > > It occurs to me that a heck of a lot of the problems we users have > with tagging and hierarchy and ontologies and folksonomies and all -- > which cause us to try to tweak them like this to make them more useful > -- all stems from a single false presumption reified in code. > > That is: you can only use one at a time. > > If it were possible to specify unions and intersections of tags, much > of what one wants heirarchy for goes away. I don't need a > "work.gossip" tag and a "school.gossip" tag, I just need to be able to > specify "return to me the intersection of 'school' and 'gossip'." In > fact, I suspect all hierarchy is actually just intersections. > > The problem, of course, is that that sort of operation is very costly. > > -- Siderea > > > > > _______________________________________________ > dw-discuss mailing list > [email protected] > http://lists.dwscoalition.org/cgi-bin/mailman/listinfo/dw-discuss > _______________________________________________ dw-discuss mailing list [email protected] http://lists.dwscoalition.org/cgi-bin/mailman/listinfo/dw-discuss
