On Fri, Jul 4, 2014 at 1:40 PM, Scott MacLeod < worlduniversityandsch...@gmail.com> wrote:
> Jane, Lydia and WikiDatans, > > These are great and helpful developments, which seem to be quite far along > now. > > Jane and WikiDatans, can you point to similar helpful examples that would > distinguish how WikiData Categories and what one can extract with Magnus' > reasonator tool from what one can 'extract' with SemanticWiki from WikiData > Categories? > > Can everyone please stop with the "categories"? Wikidata has items and properties. I assume you mean properties here. As for tools to get to data, * Reasonator [1] is for viewing a single item, and see related items * WDQ [2] is for machine-readable querying of Wikidata; basically, what SPARQL does on SMW * Autolist [3] is for getting "clickable" results from WDQ, intersecting results with Wikipedia (!) categories, and semi-automated editing For more details on these, feel free to email me, or search my blog [4]. Cheers, Magnus [1] http://tools.wmflabs.org/reasonator/ [2] http://wdq.wmflabs.org/ [3] http://tools.wmflabs.org/wikidata-todo/autolist.html and http://tools.wmflabs.org/wikidata-todo/autolist2.php [4] http://magnusmanske.de/wordpress/ > Lydia, are there any emerging video tutorials (in the manner of some of > Google's, for example) of tutorials about WikiData Categories and/or > Wikidata itself, in terms of making it very easy to use? > > Thanks, > Scott > > > > On Fri, Jul 4, 2014 at 4:40 AM, Jane Darnell <jane...@gmail.com> wrote: > >> Q17 is Japan, and if you are interested in people from Japan for example, >> you can do this: >> http://tools.wmflabs.org/reasonator/?q=7463305 >> (thanks to Magnus' reasonator tool that can extract category-like info >> from Wikidata based on properties and qualifiers) >> >> >> On Fri, Jul 4, 2014 at 9:01 AM, Daniel Kinzler < >> daniel.kinz...@wikimedia.de> wrote: >> >>> Am 04.07.2014 07:10, schrieb Rohan Badlani: >>> > I had downloaded the wikidata dump from >>> > http://dumps.wikimedia.org/wikidatawiki/latest/ >>> > There is a file wikidatawiki-20140420-pages-articles-multistream-index >>> which >>> > consists of triplets like: >>> > >>> > 537:114:Q17 >>> >>> I couldn't find documentation for the multistream-index format at >>> <https://meta.wikimedia.org/wiki/Data_dumps>. I can't make sense of it >>> myself >>> offhand. Perhaps ask on the wikitech-l list. I suppose the authority on >>> the >>> question would be Ariel Glenn, perhaps you can get hold of him on IRC. >>> >>> Note that this format is used for all wikis, so it will not contain >>> anything >>> that is specific to Wikidata. It would be the same for Wikipedia. >>> >>> If you figure it out, please add the info to >>> <https://meta.wikimedia.org/wiki/Data_dumps>! >>> >>> > which I interpreted as following: >>> > 537 - category of the topic (which I am unable to find. I want the >>> details of >>> > this item) >>> >>> It's not a category. Wikidata doesn't use MediaWiki's Category feature >>> for data >>> items at all. Wikipedia does, but there pages generally have multiple >>> categories, identified by name, not a numeric ID. >>> >>> If you want to build a classification graph of the concepts in Wikidata >>> (I'm >>> intentionally avoiding the terms "ontology" and "taxonomy" here), you >>> will have >>> to go by the properties P31 (instance of) and P279 (subclass of) which >>> are used >>> in many (roughly half) of the data items. >>> >>> > 114 - page_id of the item Q17. >>> >>> That seems to be correct. >>> >>> > Q17 - which is the item. (JSON: >>> > https://www.wikidata.org/wiki/Special:EntityData/Q17.json) >>> >>> It's the page title, which, on wikidata.org, is the same as the item ID. >>> >>> >>> HTH >>> Daniel >>> >>> PS: we are close to providing JSON dumps on a regular basis, and also >>> make the >>> JSON contained in the XML dumps more readable. This will hopefully make >>> analyzing Wikidata less painful. >>> >>> -- >>> Daniel Kinzler >>> Senior Software Developer >>> >>> Wikimedia Deutschland >>> Gesellschaft zur Förderung Freien Wissens e.V. >>> >>> _______________________________________________ >>> Wikidata-l mailing list >>> Wikidata-l@lists.wikimedia.org >>> https://lists.wikimedia.org/mailman/listinfo/wikidata-l >>> >> >> >> _______________________________________________ >> Wikidata-l mailing list >> Wikidata-l@lists.wikimedia.org >> https://lists.wikimedia.org/mailman/listinfo/wikidata-l >> >> > > > -- > - Scott MacLeod - Founder & President > - 415 480 4577 > - http://worlduniversityandschool.org > - World University and School - like Wikipedia with MIT OpenCourseWare > (not endorsed by MIT OCW) - incorporated as a nonprofit university and > school in California, and is a U.S. 501 (c) (3) tax-exempt educational > organization, both effective April 2010. > > World University and School is sending you this because of your interest > in free, online, higher education. 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