Submissions for Open Research Knowledge Graph

Description

The ORKG makes scientific knowledge human- and machine-actionable and thus enables completely new ways of machine assistance. This will help researchers find relevant contributions to their field and create state-of-the-art comparisons and reviews. With the ORKG, scientists can explore knowledge in entirely new ways and share results even across different disciplines.

Learn more about this knowledge graph
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11 of 11 submissions

#219

Natural Language Question

Get a list of ORKG comparisons (LIMIT 5).

SPARQL Query

Run Query

## ORKG Comparisons
PREFIX orkgp: <http://orkg.org/orkg/predicate/>
PREFIX orkgc: <http://orkg.org/orkg/class/>
PREFIX orkgr: <http://orkg.org/orkg/resource/>

SELECT ?comparisons
        WHERE {
            ?comparisons rdf:type orkgc:Comparison .    
        }
LIMIT 5

#220

Natural Language Question

Get the list of metadata of a specific paper in ORKG (orkgr:R141003, "SemEval-2021 Task 5: Toxic Spans Detection", https://aclanthology.org/2021.semeval-1.6.pdf) (LIMIT 25)

SPARQL Query

Run Query

#### Metadata of a specific or all ORKG paper(s)
PREFIX orkgr: <http://orkg.org/orkg/resource/>
PREFIX orkgc: <http://orkg.org/orkg/class/>
PREFIX orkgp: <http://orkg.org/orkg/predicate/>
    
SELECT ?paper ?paper_title 
       ?url ?author
       ?venue ?venue_label
       ?doi ?publication_month ?publication_year
       ?research_field ?research_field_label
       ?contribution
WHERE {
    # comment out the BINDing line to get the metadata of all papers.
    BIND(orkgr:R141003 AS ?paper)
    
    ?paper rdf:type orkgc:Paper;
           rdfs:label ?paper_title ;
           orkgp:hasAuthors ?authors ;
           orkgp:P30 ?research_field .
    
    ?research_field rdfs:label ?research_field_label .
    
    ?authors ?seq_n ?author .
    
    OPTIONAL { ?paper orkgp:P26 ?doi } .
    OPTIONAL { ?paper orkgp:url ?url } .
    OPTIONAL { ?paper orkgp:P28 ?publication_month } .
    OPTIONAL { ?paper orkgp:P29 ?publication_year } .
    OPTIONAL { ?paper orkgp:HAS_VENUE ?venue .
               ?venue rdfs:label ?venue_label } .
    OPTIONAL { ?paper orkgp:P31 ?contribution } .
    FILTER(REGEX(STR(?seq_n), CONCAT(STR(rdf:), "_\\d+")))
}

LIMIT 25

#246

Natural Language Question

What are all the Energy providers in Germany

#290

Natural Language Question

Which research fields contain the largest number of papers in the Open Research Knowledge Graph? Show the top 20.

SPARQL Query

Run Query

PREFIX orkgp: <http://orkg.org/orkg/predicate/>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>

SELECT ?researchField ?researchFieldLabel
       (COUNT(DISTINCT ?paper) AS ?paperCount)
WHERE {
  GRAPH <http://orkg.org> {
    ?paper orkgp:P30 ?researchField .

    OPTIONAL {
      ?researchField rdfs:label ?researchFieldLabel .
    }
  }
}
GROUP BY ?researchField ?researchFieldLabel
ORDER BY DESC(?paperCount)
LIMIT 20

#291

Natural Language Question

Which research fields contain the largest number of papers with “knowledge graph” in their titles? Show the top 20.

SPARQL Query

Run Query

PREFIX orkgp: <http://orkg.org/orkg/predicate/>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>

SELECT ?researchField ?researchFieldLabel
       (COUNT(DISTINCT ?paper) AS ?paperCount)
WHERE {
  GRAPH <http://orkg.org> {
    ?paper orkgp:P30 ?researchField ;
           rdfs:label ?paperTitle .

    ?researchField rdfs:label ?researchFieldLabel .

    FILTER(
      CONTAINS(
        LCASE(STR(?paperTitle)),
        "knowledge graph"
      )
    )
  }
}
GROUP BY ?researchField ?researchFieldLabel
ORDER BY DESC(?paperCount)
LIMIT 20

#292

Natural Language Question

Which papers in the Open Research Knowledge Graph are assigned to more than one research field? Show the top 20 papers with the largest number of distinct research fields.

SPARQL Query

Run Query

PREFIX orkgp: <http://orkg.org/orkg/predicate/>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>

SELECT ?paper ?paperTitle
       (COUNT(DISTINCT ?researchField) AS ?researchFieldCount)
WHERE {
  GRAPH <http://orkg.org> {
    ?paper orkgp:P30 ?researchField ;
           orkgp:P31 ?contribution ;
           rdfs:label ?paperTitle .
  }
}
GROUP BY ?paper ?paperTitle
HAVING (COUNT(DISTINCT ?researchField) > 1)
ORDER BY DESC(?researchFieldCount)
LIMIT 20

#293

Natural Language Question

Which papers are assigned to the Computer Sciences research field in the Open Research Knowledge Graph? Show the first 50 in alphabetical order by title.

SPARQL Query

Run Query

PREFIX orkgp: <http://orkg.org/orkg/predicate/>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>

SELECT DISTINCT ?paper ?paperTitle ?researchField
WHERE {
  GRAPH <http://orkg.org> {
    ?researchField rdfs:label ?researchFieldLabel .

    FILTER(
      LCASE(STR(?researchFieldLabel)) = "computer sciences"
    )

    ?paper orkgp:P30 ?researchField ;
           orkgp:P31 ?contribution ;
           rdfs:label ?paperTitle .
  }
}
ORDER BY LCASE(STR(?paperTitle))
LIMIT 50

#294

Natural Language Question

Which research fields most frequently co-occur with Computer Sciences in the same papers in the Open Research Knowledge Graph? Show the top 20.

SPARQL Query

Run Query

PREFIX orkgp: <http://orkg.org/orkg/predicate/>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>

SELECT ?coResearchField ?coResearchFieldLabel
       (COUNT(DISTINCT ?paper) AS ?paperCount)
WHERE {
  GRAPH <http://orkg.org> {
    ?computerScienceField rdfs:label ?computerScienceLabel .

    FILTER(
      LCASE(STR(?computerScienceLabel)) = "computer sciences"
    )

    ?paper orkgp:P30 ?computerScienceField ;
           orkgp:P30 ?coResearchField ;
           orkgp:P31 ?contribution .

    FILTER(?coResearchField != ?computerScienceField)

    ?coResearchField rdfs:label ?coResearchFieldLabel .
  }
}
GROUP BY ?coResearchField ?coResearchFieldLabel
ORDER BY DESC(?paperCount)
LIMIT 20

#295

Natural Language Question

Which research fields contain the largest number of papers with more than one research contribution? Show the top 20.

SPARQL Query

Run Query

PREFIX orkgp: <http://orkg.org/orkg/predicate/>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>

SELECT ?researchField ?researchFieldLabel
       (COUNT(DISTINCT ?paper) AS ?paperCount)
WHERE {
  GRAPH <http://orkg.org> {
    ?paper orkgp:P30 ?researchField ;
           orkgp:P31 ?contribution .

    ?researchField rdfs:label ?researchFieldLabel .
  }

  {
    SELECT ?paper
    WHERE {
      GRAPH <http://orkg.org> {
        ?paper orkgp:P31 ?contribution .
      }
    }
    GROUP BY ?paper
    HAVING (COUNT(DISTINCT ?contribution) > 1)
  }
}
GROUP BY ?researchField ?researchFieldLabel
ORDER BY DESC(?paperCount)
LIMIT 20

#296

Natural Language Question

Which papers in the Semantic Web research field have the largest number of research contributions? Show the top 20.

SPARQL Query

Run Query

PREFIX orkgp: <http://orkg.org/orkg/predicate/>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>

SELECT ?paper ?paperTitle
       (COUNT(DISTINCT ?contribution) AS ?contributionCount)
WHERE {
  GRAPH <http://orkg.org> {
    ?researchField rdfs:label ?researchFieldLabel .

    FILTER(
      LCASE(STR(?researchFieldLabel)) = "semantic web"
    )

    ?paper orkgp:P30 ?researchField ;
           orkgp:P31 ?contribution ;
           rdfs:label ?paperTitle .
  }
}
GROUP BY ?paper ?paperTitle
ORDER BY DESC(?contributionCount)
LIMIT 20

#297

Natural Language Question

Which research fields have the highest average number of research contributions per paper in the Open Research Knowledge Graph? Consider only fields with at least 10 papers and show the top 20.

SPARQL Query

Run Query

PREFIX orkgp: <http://orkg.org/orkg/predicate/>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>

SELECT ?researchField ?researchFieldLabel
       (AVG(?contributionCount) AS ?averageContributionCount)
       (COUNT(DISTINCT ?paper) AS ?paperCount)
WHERE {
  GRAPH <http://orkg.org> {
    ?paper orkgp:P30 ?researchField .
    ?researchField rdfs:label ?researchFieldLabel .
  }

  {
    SELECT ?paper
           (COUNT(DISTINCT ?contribution) AS ?contributionCount)
    WHERE {
      GRAPH <http://orkg.org> {
        ?paper orkgp:P31 ?contribution .
      }
    }
    GROUP BY ?paper
  }
}
GROUP BY ?researchField ?researchFieldLabel
HAVING (COUNT(DISTINCT ?paper) >= 10)
ORDER BY DESC(?averageContributionCount)
LIMIT 20

Quagga has been developed by Odoma ↗ for Graphia ↗

Funded by the European Union (grant ID: 101188018 ↗)

and by the Swiss State Secretariat for Education, Research and Innovation (SERI).

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