---------- Forwarded message ----------
From: Jorge Hernandez <jorgeah2(a)uci.edu>
Date: Wed, Dec 30, 2015 at 9:03 AM
Subject: 'help'
To: wikidata-tech-owner(a)lists.wikimedia.org
Hello Wiki Community,
My name is Jorge, and I am a researcher conducting a small project on
Wikidata.
I truly enjoy learning about this new dimension of knowledge, but like most
of us,
am having problems with querying and even installing Lua scribunto etc.
My aim is to be able to learn how to extract geo-spatial attributes ( e.g.,
coordinates)
for any given statement. Also, it will come in very handy if there was a
link to
a list or register of all the property and values available on Wikidata (
e.g., P31, Q2).
Is this information available somewhere?
I am still getting used to this listing and e-mail system.
Hope to hear from you soon, Have a great day!!!
Kindest Regards,
Jorge Hernandez
--
*Jorge A. HernandezResearch Intern*
*University of California, Irvine*
Schools of Social & Information Science
Member, Sociology Honors Research Fellow
,
2014-2015
Member, Dean's Council
::
Academic
|
Philanthropic|
Research|Social
*University of Southern California*
Spatial Science Institute
Email:Jorgeah2@uci.edu
Email:Jorgeahe@usc.edu
Tel: 951-452-0395
--
*Jorge A. HernandezResearch Intern*
Speedfind Technologies
*University of California, Irvine*
Schools of Social & Information Science
Member, Sociology Honors Research Fellow
,
2014-2015
Member, Dean's Council
::
Academic
|
Philanthropic|
Research|Social
*University of Southern California*
Spatial Science Institute
Email:Jorgeah2@uci.edu
Email:Jorgeahe@usc.edu
Tel: 951-452-0395
Hello,
I am building a web site for knowledge discovery, and would like to
understand more the structure of wikidata in order to expose selected keys
for a wikidata object.
*Is there any schema describing all the keys used in wikidata objects?*
As example, this demo shows all possible keys for 'Richard_Feynman' object.
http://earldouglas.github.io/wdqs-explorer/Richard_Feynman/
It looks like that for each property belonging to 'Richard_Feynman' a query
must be made against the property_Id , so to fetch a human readable label.
That is, about ~500Kb must be downloaded. I would like to understand better
how to consume wikidata API.
- which API exposes a simple schema 'key' : 'value' , like: 'birth_date'
: 'Los Angeles' (similar to what you see at wikidata site) ?
- which API expose the value of a relationships between objects ? (e.g.
Feynman is connected to Cornell University by 'employer' relationship)
- Is there a table describing all keys currently present in wikidata, so
that is possible to know which one to filter ?
thank you for your debrief,
Luigi
A couple of weeks ago, I proposed to change our PHP data model bindings to allow
extra info to be attached using the concept of "facets" simmilar to the "role
object" and "extension object" pattern.
Code experiments showcasing this idea can be found on github:
* https://github.com/wmde/WikibaseDataModel/pull/576
* https://github.com/wmde/WikibaseDataModelSerialization/pull/174
This is the final call for objections against using this approach. The rationale
behind it can be found on <https://phabricator.wikimedia.org/T118860> and
related tickets.
Implementation details can still change later, but after nearly 3 months, we
finally need a decision on the conceptual level. If there are no substantial
objections, this will become definite on Tuesday, December 8.
--
Daniel Kinzler
Senior Software Developer
Wikimedia Deutschland
Gesellschaft zur Förderung Freien Wissens e.V.