Help

Difference between revisions of "SPARQL"
Line 237: Line 237:
 
</syntaxhighlight>
 
</syntaxhighlight>
  
−
To do: do smaller sub-queries
+
To do: do smaller sub-queries. For now, works only for one counter and one language at a time:
 +
 
 +
=== Sub-queries ===
 +
 
 +
{|
 +
|- style="vertical-align:top;"
 +
|style="padding: 0 3em;width:60%"|
 +
<syntaxhighlight lang="sparql">
 +
SELECT ?language (COUNT(?audio) AS ?nbAudio) WHERE {
 +
  VALUES ?language { entity:Q21 }
 +
  ?audio prop:P4 ?language .
 +
}
 +
GROUP BY ?language
 +
</syntaxhighlight>
 +
|
 +
<query _pagination="6" item="Property" itemLabel="Values">
 +
SELECT ?language (COUNT(?audio) AS ?nbAudio) WHERE {
 +
  VALUES ?language { entity:Q21 }
 +
  ?audio prop:P4 ?language .
 +
}
 +
GROUP BY ?language
 +
</query>
 +
|}
 +
 
 +
{|
 +
|- style="vertical-align:top;"
 +
|style="padding: 0 3em;width:60%"|
 +
<syntaxhighlight lang="sparql">
 +
SELECT ?language (COUNT(DISTINCT ?speaker) AS ?nbSpeaker) WHERE {
 +
  VALUES ?language { entity:Q21 }
 +
  ?speaker prop:P4 ?language .
 +
}
 +
GROUP BY ?language
 +
</syntaxhighlight>
 +
|
 +
<query _pagination="6" item="Property" itemLabel="Values">
 +
SELECT ?language (COUNT(DISTINCT ?speaker) AS ?nbSpeaker) WHERE {
 +
  VALUES ?language { entity:Q21 }
 +
  ?speaker prop:P4 ?language .
 +
}
 +
GROUP BY ?language
 +
</query>
 +
|}
  
 
== Isolang → Language LL Qid ==
 
== Isolang → Language LL Qid ==

Revision as of 20:53, 6 December 2021

Base

Fetch SPARQL data

Data can be fetched using various coding languages such as Python, Javascript, R and others. On the Wikidata Query Service page, after running your SPARQL query, click "Code" : a pop up window appears with various implementations.

Javascript:
At least 3 methods exists (code snippet), example:

Query Result's basic unit 
var endpoint = 'https://lingualibre.org/sparql';
var sparql = 'SELECT ?item WHERE { ?item prop:P2 entity:Q5 } LIMIT 10';
$.getJSON(endpoint,
	{ query: sparql, format: 'json' },
	function(data){ console.log('JQuery: ',data)}
);

{ … },
{
  "item": {
    "type": "uri",
    "value": "https://lingualibre.org/entity/Q12"
  },
  "itemLabel": {
    "xml:lang": "en",
    "type": "literal",
    "value": "beginner"
  }
},
{ … }

✅ Is Language level (language level (Q5)) → list possible values

SELECT ?item ?itemLabel
WHERE {
  ?item prop:P2 entity:Q5    # Condition 1, P2 'instance of' is Q5 'language level'.
  SERVICE wikibase:label {
    bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en" .
  } 
}
... Loading ...

✅ Is Sex or Gender(sex or gender (Q7)) → list possible values

SELECT ?item ?itemLabel
WHERE {
  ?item prop:P2 entity:Q7    # Condition 1, P2 'instance of' is Q7 'sex or gender'.
  SERVICE wikibase:label {
    bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en" .
  } 
}
... Loading ...

✅🇶 Is Speaker (speaker (Q3)) → list all speakers

SELECT ?speaker ?speakerLabel
WHERE {
  ?speaker prop:P2 entity:Q3 .  # Condition 1, P2 'instance of' is Q3 'speaker'.
  SERVICE wikibase:label {
    bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en" .
  } 
}
... Loading ...

✅ Speaker name(s) → Speaker Qid(s)

SELECT ?speakerName ?speakerId
WHERE {
  VALUES ?speakerName { "Yug" "VIGNERON" } # One or multiple values
  BIND ( STRLANG(?speakerName, "en") AS ?speakerLabel )
  # P2: instance of; Q3: speaker.
  ?speakerId prop:P2 entity:Q3 ; rdfs:label ?speakerLabel .
}
... Loading ...

✅🇶 Speaker Qid: 0x010C (Q42) → Speaker data

# Get Q42 (User:0x010C)'s data
SELECT ?predicate ?predicate ?object ?objectLabel
WHERE {
  entity:Q42 ?predicate ?object .
  SERVICE wikibase:label {
    bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en" .
  } 
}
... Loading ...

✅🇶 Speaker Qid: 0x010C (Q42) → Speaker data → Speaker languages P4

SELECT ?languages ?languagesLabel
WHERE {
  entity:Q42 prop:P4 ?languages .
  SERVICE wikibase:label {
    bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en" .
  } 
}
... Loading ...

✅ Speaker Qid + language → list of all associated audios

SELECT ?audio ?audioLabel
WHERE {
  ?audio prop:P5 entity:Q42 .   # Condition 1, P5 Speaker is Q42 User:0x010C
  ?audio prop:P4 entity:Q21 .   # Condition 2, P4 language is Q21 French
  # Labels
  SERVICE wikibase:label {
    bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en" .
  } 
}
... Loading ...

❌ Is Language (speaker (Q3)) → list all languages with number of unique words and speakers

Too large to run (not even on Lingualibre Query). 

SELECT ?language (COUNT(?audio) AS ?nbAudio) (COUNT(?speaker) AS ?nbSpeaker) WHERE {
  ?language prop:P2 entity:Q4 .
  ?audio prop:P4 ?language .
  ?speaker prop:P4 ?language .
}
GROUP BY ?language

To do: do smaller sub-queries. For now, works only for one counter and one language at a time:

Sub-queries

SELECT ?language (COUNT(?audio) AS ?nbAudio) WHERE {
  VALUES ?language { entity:Q21 }
  ?audio prop:P4 ?language .
}
GROUP BY ?language
... Loading ...
SELECT ?language (COUNT(DISTINCT ?speaker) AS ?nbSpeaker) WHERE {
  VALUES ?language { entity:Q21 }
  ?speaker prop:P4 ?language .
}
GROUP BY ?language
... Loading ...

Isolang → Language LL Qid

SELECT * WHERE {
  ?lang prop:P13 ?code .
}
... Loading ...

✅ Isolang → Language WD Qid

SELECT ?langIso ?langId
WHERE {
  VALUES ?langIso { "ban" "bre" } # One or multiple values
  # P2 'instance of'; Q4 'language'; P13 'ISO 639-3 code'
  ?langId prop:P2 entity:Q4 ; prop:P13 ?langIso .
}
... Loading ...

✅ Language WD Qid → Language data

SELECT * WHERE {
  ?lang prop:P12 "Q12107" .  # P12 'Wikidata id' is Wikidata's "Q12107"
  ?lang ?predicate ?object . # 
}
... Loading ...

✅ Language LL Qid (Breton (Q209)) → Language data

'Case: Get for language Q209 'Breton' all its data. 

SELECT * WHERE {
  # Given Q209 'Breton language', get all properties and values
  entity:Q209 ?predicate ?object .
}
... Loading ...

✅ Language LL Qid (Breton (Q209)) → core Language data

'Case: Get for language Q209 'Breton' all its CORE data. 

SELECT * WHERE {
  # Given Q209 'Breton language', get all properties and values
  entity:Q209 ?predicate ?object .
  ?predicate rdf:type owl:DatatypeProperty .
}
... Loading ...

✅ Language (Breton (Q209)) + speaker (ThonyVezbe (Q584098)) + word (ni) → Audio's Qid

Case: Search in Breton language, with speaker 'ThonyVezbe', 

SELECT ?audio
WHERE {
  ?audio prop:P4 entity:Q209 .    # P4 'language' is Q209 'Breton'
  ?audio prop:P5 entity:Q584098 . # P5 'speaker' is Q584098 'ThonyVezbe'
  ?audio rdfs:label ?word . #word
  FILTER ( STR(?word) = "ni" )    # word = 'ni'
}
... Loading ...

Audio Qid → Audio data

✅ Langue + speaker + word → Audio's Commons url

Tools

  • Special:ApiSandbox – API queries generator for Lingualibre wikipage and wikibase contents.
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