{"id":226,"date":"2008-01-23T20:40:43","date_gmt":"2008-01-24T03:40:43","guid":{"rendered":"https:\/\/dubinko.info\/blog\/2008\/01\/23\/machine-tags\/"},"modified":"2008-01-23T20:40:43","modified_gmt":"2008-01-24T03:40:43","slug":"machine-tags","status":"publish","type":"post","link":"https:\/\/dubinko.info\/blog\/2008\/01\/machine-tags\/","title":{"rendered":"Machine tags"},"content":{"rendered":"<p>Take a look at <a href=\"http:\/\/www.flickr.com\/photos\/tags\/xmlns%3Adc%3Dhttppurlorgdcelements11\/interesting\/\">this URL<\/a>, and the page behind it. This is a list of all the <span class=\"yshortcuts\" id=\"lw_1201145577_0\">Flickr<\/span> photos with the tag &#8220;<span class=\"Plain\">xmlns:dc=http:\/\/purl.org\/dc\/elements\/1.1\/<\/span>&#8220;. Although these have <a href=\"http:\/\/www.flickr.com\/groups\/api\/discuss\/72157594497877875\/\">been around for a while<\/a>, I hadn&#8217;t been aware of this kind of tagging until recently.<\/p>\n<p>Why &#8220;xml&#8221; in the namespace declaration? This doesn&#8217;t have much to do with XML. How many tags are there in the world that start with &#8220;dc:&#8221; and are not referring to <span class=\"yshortcuts\" id=\"lw_1201145577_1\">Dublin Core<\/span>? At least the tag declaring the namespace provides a good hook for finding things with machine tags. It&#8217;s only a small step up to RDFa from here, which is good! -m<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Take a look at this URL, and the page behind it. This is a list of all the Flickr photos with the tag &#8220;xmlns:dc=http:\/\/purl.org\/dc\/elements\/1.1\/&#8220;. Although these have been around for a while, I hadn&#8217;t been aware of this kind of tagging until recently. Why &#8220;xml&#8221; in the namespace declaration? 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