Questions tagged [wikidata]

Wikidata is a project of the Wikimedia foundation related to open data

21 questions with no upvoted or accepted answers
Filter by
Sorted by
Tagged with
3
votes
0answers
26 views

Find most-depicted Wikidata items that have no image

Wikimedia Commons has a new feature where a picture can have metadata saying it depicts a given Wikidata item. For instance, https://commons.wikimedia.org/wiki/File:Grandpark_Plaza.jpg depicts https:/...
3
votes
0answers
165 views

What are the limitations of the Wikidata data model?

Wikidata data model is as follows: The following diagram is a more summarized version of it (source): All terms are defined here. I wonder what the limitations Wikidata data model are.
2
votes
0answers
32 views

SPARQL - Filter wikidata identifiers

Query below gives me all programming languages entities, with their statements. Problem is that I don't need identifiers now, but these IDs might become necessary. I was just gonna model database ...
2
votes
0answers
30 views

Wikidata SPARQL - get company entities and the location of their headquarters

I'm having trouble extracting location attributes of company HQ's. My query: finds all companies or sub-classes, and returns some basic properties such as ISIN and URL, and the Headquarter location. ...
2
votes
0answers
29 views

SPARQL query to get capacity of event venues from Wikidata

I am trying to query Wikidata to find out the capacities of all event venues in specific geographic regions (US urban centers). They have this service for querying: Wikidata Query Service The answer ...
2
votes
0answers
43 views

How to use wikidata property paths?

Given a term/concept, I want to decide if it belongs to computer science. For that, I am checking if the concept has a property path to computer science node. In other words, I am checking whether ...
2
votes
0answers
101 views

How to use DBpedia to identify the topics

In the paper "Discovering Relevant Topics using DBPedia providing non-obvious recommendations" they have used skos:broader property and dcterms:subject property. In my task given the word I want to ...
2
votes
0answers
88 views

Property and sub-property pairs

Here are some example records: https://www.wikidata.org/wiki/Q11361734 https://www.wikidata.org/wiki/Q74669 I have the following (updated) query: # Script #2 SELECT (GROUP_CONCAT( ?...
2
votes
0answers
38 views

Percentage of radio stations that are terrestrial stations versus Internet stations

What are the percentages of radio stations which provide: terrestrial radio station only Internet radio station both I am looking into this data by year and world country. Thank you for your ...
2
votes
0answers
34 views

Wikidata item add form template

Is it possible in wikidata to make a template form from which wikidata item is created? If this is not yet supported, what would be simplest way to make (program) such implementation integrated into ...
1
vote
0answers
14 views

How to distinguish between human and animal bones in Wikidata?

The two topics https://www.wikidata.org/wiki/Q16343 (Clavicle) https://www.wikidata.org/wiki/Q835986 (Baculum, Penis bone) are both instances of Q265868 (Bone). However, the clavicle is a human (...
1
vote
0answers
25 views

Wikidata SPARQL How to speed up this query?

I have come to this query, which retrieves wikipedia and wikidata info from a wikipedia title: SELECT ?wikipediaId ?wikipediaTitle ?wikidataId ?desc ?imageUrl (GROUP_CONCAT(?instanceOfS; SEPARATOR=";"...
1
vote
0answers
28 views

Wikidata Sparql Getting properties from a Wikipedia generator list

I am trying to get the properties that the linked pages from a wikipedia page have. SELECT ?item ?wikipediaTitle ?target WHERE { SERVICE wikibase:mwapi { bd:serviceParam wikibase:endpoint "en....
1
vote
0answers
15 views

Does Wikidata contain the data from the Wikipedia {{distinguish}} template?

Wikipedia uses the {{Distinguish}} template for pages whose subject is easily confused with another subject. For example, the two Congo countries are frequently confused with each other, so their ...
1
vote
0answers
42 views

Wikidata - How to get codes without urls

Ive the following query, but I only want the country codes, not the entire link. This happens also with other fields and i cant find the solution PREFIX xsd: <http://www.w3.org/2001/XMLSchema#> ...
1
vote
0answers
28 views

Filter wikidata results with 'around' service

Is it possible to use the "around" service as a filter, for example to search for a place name in a country and limit results to those within a given distance of a known point. For example, limit ...
1
vote
0answers
40 views

Race, cross-race, and cross culture tolerance data

Where can I find since done per-country data on people's attitudes towards people of other race and/or culture living within the same country and children of mixed race living within those countries. ...
0
votes
0answers
26 views

Download Wikidata User pages

I need to download the user pages of all Wikidata's users (editors) How can I do this without downloading the full Wikidata Dumps?! Thank you
0
votes
0answers
14 views

How come there are missing entities in this SPARQL query?

I was interested in listing all books, so I wrote: SELECT ?book ?url WHERE { ?book wdt:P31 wd:Q571 . OPTIONAL { ?url schema:about ?book . ?url schema:inLanguage "en" . ?url schema:isPartOf <...
0
votes
0answers
13 views

GeoSPARQL query that filters locations outside polygon (Wikidata)

I want to get all venues that have the 'maximum_capacity' property (P1083), and then I want to filter them by whether or not their lat/lon attribute intersects some polygon. I am trying to follow ...
0
votes
0answers
10 views

Wiki Sparql difference between wikibase:apiOutput and wikibase:apiOutputItem?

Reading https://www.mediawiki.org/wiki/Wikidata_Query_Service/User_Manual/MWAPI#Find_articles_in_Wikipedia and trying some queries, I have come to the question: What is the difference between "...