Visualization library for SPARQL query results
Project description
VizKG
VizKG, a visualization library for SPARQL query results over KGs. VizKG links SPARQL query results and external visualization libraries by mapping query variables to the visualization components needed, currently allowing for 24 types of visualizations. Not only that, VizKG also provides visualization recommendations for arbitrary SPARQL query result.
Installation
Use the package manager pip to install VizKG.
pip install VizKG
Usage
# Import the library
import VizKG.visualize as vkg
Wikidata: COVID-19 Vaccine Origins
sparql_query = """
SELECT DISTINCT ?vaccineLabel ?originCountry {
?vaccine wdt:P1924 wd:Q84263196 .
?vaccine wdt:P178 ?developer.
?vaccine rdfs:label ?vaccineLabel .
?developer wdt:P17 ?origin .
?origin rdfs:label ?originCountry .
FILTER (LANG(?vaccineLabel) = 'en').
FILTER (LANG(?originCountry) = 'en').
}LIMIT 25
"""
#to query another endpoint, change the URL for the service and the query
sparql_service_url = "https://query.wikidata.org/sparql"
chart = vkg(sparql_query=sparql_query, sparql_service_url=sparql_service_url, chart='sunburst')
chart.plot()
DBpedia: Map of Temples in Indonesia
sparql_query = """
SELECT * WHERE {
?item dbo:wikiPageWikiLink dbr:Candi_of_Indonesia;
geo:geometry ?geo .
?item rdfs:label ?itemLabel.
FILTER((LANG(?itemLabel)) = "en")
}
"""
#to query another endpoint, change the URL for the service and the query
sparql_service_url = "https://dbpedia.org/sparql/"
chart = vkg(sparql_query=sparql_query, sparql_service_url=sparql_service_url, chart='map')
chart.plot()
OU_UK: Number of Employees by Job Title
sparql_query = """
PREFIX foaf: <http://xmlns.com/foaf/0.1/>
PREFIX schema: <http://schema.org/jobTitle>
SELECT DISTINCT ?jobTitle (COUNT(?jobTitle) as ?count) WHERE {?s a foaf:Person .
?s <http://schema.org/jobTitle> ?jobTitle .
FILTER (lang(?jobTitle) != 'en')
}
GROUP BY ?jobTitle
HAVING (?count > 10)
"""
#to query another endpoint, change the URL for the service and the query
sparql_service_url = "https://data.open.ac.uk/sparql"
chart = vkg(sparql_query=sparql_query, sparql_service_url=sparql_service_url, chart='TreeMap')
chart.plot()
Budaya KB: Number of Temples by Indonesian Regencies
sparql_query = """
prefix bkb: <https://budayakb.cs.ui.ac.id/ns#>
prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#>
SELECT ?provLabel (COUNT(?temple) AS ?numTemple) WHERE {
?temple a bkb:Candi .
?temple bkb:locationInProvince ?prov .
?prov rdfs:label ?provLabel.
FILTER (lang(?provLabel) = 'id')
} GROUP BY ?provLabel
ORDER BY DESC(?numTemple)
"""
#to query another endpoint, change the URL for the service and the query
sparql_service_url = "https://budayakb.cs.ui.ac.id/budaya/sparql"
chart = vkg(sparql_query=sparql_query, sparql_service_url=sparql_service_url, chart='bubble')
chart.plot()
Supported Visualizations
- Table
- ImageGrid
- Map
- Graph
- Tree
- Dimensions
- Timeline
- WordCloud
- Histogram
- Density Plot
- Box Plot
- Violin Plot
- Line Chart
- Bar Chart
- Area Chart
- Stacked Area Chart
- Bubble Chart
- Scatter Chart
- HeatMap
- Radar Chart
- Tree Map
- SunBurst Chart
- Pie Chart
- Donut Chart
Related Work
Tool | Framework | Data Source | Input Type | Number of Chart Types |
---|---|---|---|---|
Wikidata Query Service | Web-based | Wikidata only | SPARQL SELECT | 14 |
Dataviz | Web-based | Wikidata only | SPARQL SELECT | 23 |
YASGUI | Web-based | Generic | SPARQL SELECT and SPARQL CONSTRUCT | 11 |
LDVizWiz | Web-based | Generic | SPARQL SELECT/ASK and RDF Data | 27 |
Sparklis | Web-based | Generic | Text | 4 |
Quedi | Web-based | Generic | Text | 16 |
Voyager | Web-based | Generic | Tabular Data | 5 |
S-Paths | Web-based | Generic | RDF Data | 10 |
Gastrodon | Python Library | Generic | RDF Data | - |
kglab | Python Library | Generic | RDF Data | 1 |
Autoviz | Python Library | Generic | Tabular Data | 5 |
Visualizer | Python Library | Generic | Tabular Data | 20 |
Project details
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