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Re: Visualizing metadata element sets in side deliverable

From: Antoine Isaac <aisaac@few.vu.nl>
Date: Sun, 11 Sep 2011 23:36:47 +0200
Message-ID: <4E6D29EF.1080604@few.vu.nl>
To: public-xg-lld@w3.org
Hi everyone,

Here's a second version of the metadata element set cloud, generated from Paul's database, with some manual edition. In particular, Marcia has 'dash'-ed the labels that contain more than one word (e.g., "W3C Geo voc" becomes "W3C Geo voc") to make the think easier to read.

FYI, in the process, I've made several updates to the Deliverable. Sometimes the wiki was mentioning cases that Paul's database was missing. Sometimes it was the other direction, in which case I've updated Paul's database. I've not taken too much care doing precise bookkeeping for the big ones (DC-FOAF-SKOS) but all the element sets with only one use case should be in now. There were also several places in which there was a problem with the text, or vocabularies in a wrong section--some vocabularies have been actually moved from "work in progress" to "implemented" in the past couple of months :-)
Diff is at


> Dear all,
> Among the TODOs to clean at the last moment for the side deliverable, there is one on visualizing Metadata Element Sets:
> http://www.w3.org/2005/Incubator/lld/wiki/Vocabulary_and_Dataset#Metadata_Element_Sets
> The original idea was to show the relations between Sets and their relative importance (as indicated by their usage in individual cases).
> The inspiration was Mondeca's Linked Open Vocabularies: we wanted to do the same kind of graph as http://labs.mondeca.com/dataset/lov/details/vocabularySpace_Library.html, but
> - based on our use cases only
> - with links between element sets, as in http://labs.mondeca.com/dataset/lov/details/vocabulary_skos.html
> There was even a mock-up:
> http://www.w3.org/2005/Incubator/lld/wiki/File:LLD-MetadataElementSetCloudMock.png
> Unfortunately, it has obvious that the editors of the side deliverable don't have enough resources to gather the data needed to create this: Mondeca's scripts use a SPARQL endpoint, for which we'd have to create fairly rich data.
> BUT as I was about to remove the mock-up, I saw that the site Paul Walk has made in Pittsburgh was still alive: http://www.paulwalk.net/lldvis/
> Even better, I've discovered that:
> 1. I can easily remove from this page the value vocabularies, keeping the element sets only
> 2. I can add new element sets, fitting the latest version of our side deliverable. In fact we can really add them in the data behind Paul's page, and attach use cases to them. But perhaps that's not needed, we can tweak the size of the tags manually...
> So I've implemented step 1 and created a tag cloud for the metadata element sets:
> http://www.few.vu.nl/~aisaac/lld/LLDMES.html
> It's clearly not the full monty we were dreaming of, but it still gives some idea on usage of element sets.And it's really easy to make.
> I could continue this, adding the element sets we miss. And then take a screenshot to be included in the side deliverable: I'm afraid we can't fit in the real HTML code, as it is heavily depending on scripts that are on Paul's site.
> Do you think that would be worth it? And it's not too late?
> Cheers,
> Antoine

(image/png attachment: MESCloud.png)

Received on Sunday, 11 September 2011 21:34:52 UTC

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