1. Describing configurations
of software experiments
as Linked Data
Joachim Van Herwegen, Ruben Taelman, Sarven Capadisli, Ruben Verborgh
https://linkedsoftwaredependencies.org/articles/describing-experiments/

2. Why write research articles?
We want other researchers…
2

3. Why write research articles?
We want other researchers…
…to re-use our data.
…to re-use our software.
…to build upon our results.
3

4. Why write research articles?
We want other researchers…
…to re-use our data.
…to re-use our software.
…to build upon our results.
4

5. Paper evaluation (2014)
“We provide all source code of the implementations, as
well as the full benchmark configuration, at
http://example.com.”
5

6. Paper evaluation (2014)
“We provide all source code of the implementations, as
well as the full benchmark configuration, at
http://example.com.”
6

7. Paper evaluation (2014)
“We provide all source code of the implementations, as
well as the full benchmark configuration, at
http://example.com.”
“… is compared to Virtuoso (6.1.8 and 7.1.1) and Jena
Fuseki (TDB 1.0.1 and HDT 1.1.1).”
7

8. Paper evaluation (2014)
“We provide all source code of the implementations, as
well as the full benchmark configuration, at
http://example.com.”
“… is compared to Virtuoso (6.1.8 and 7.1.1) and Jena
Fuseki (TDB 1.0.1 and HDT 1.1.1).”
8

9. Paper evaluation (2014)
“We provide all source code of the implementations, as
well as the full benchmark configuration, at
https://github.com/LinkedDataFragments/.”
“… is compared to Virtuoso (6.1.8 and 7.1.1) and Jena
Fuseki (TDB 1.0.1 and HDT 1.1.1).”
9

10. Improved evaluation description
Exact and complete description of the setup
10

11. Improved evaluation description
Exact and complete description of the setup
… using Linked Data
11

12. Improved evaluation description
Exact and complete description of the setup
… using Linked Data
… for automatic instantiation.
12

13. Describing configurations as Linked Data
Interlinking software modules
Instantiating software components
Updated evaluation
13

14. Describing configurations as Linked Data
Interlinking software modules
Instantiating software components
Updated evaluation
14

15. Interlinking software modules
Which software modules were used?
Which evaluations made use of this module?
Which other modules depend on this module?
15

16. Node Package Manager (npm)
Package manager for JavaScript
16

17. Node Package Manager (npm)
Package manager for JavaScript
17
http://www.modulecounts.com

18. Node Package Manager (npm)
Package manager for JavaScript
Convert to
Linked Data
18
http://www.modulecounts.com

19. Package.json
{
"name": "ldf-server",
"version": "2.2.2",
"license": "MIT",
"repository": {
"type": "git",
"url": "git@github.com:LinkedDataFragments/Server.js.git"
},
"bugs": {
"url": "https://github.com/LinkedDataFragments/Server.js/issues"
},
"dependencies": {
"asynciterator": "^1.1.0",
"jsonld": "^0.4.11",
"lodash": "^2.4.2"
}
}
19

20. Package.json
{
"name": "ldf-server",
"version": "2.2.2",
"license": "MIT",
"repository": {
"type": "git",
"url": "git@github.com:LinkedDataFragments/Server.js.git"
},
"bugs": {
"url": "https://github.com/LinkedDataFragments/Server.js/issues"
},
"dependencies": {
"asynciterator": "^1.1.0",
"jsonld": "^0.4.11",
"lodash": "^2.4.2"
}
}
20

21. Package.jsonld
Convert JSON to JSON-LD to generate Linked Data
21

22. Package.jsonld
Convert JSON to JSON-LD to generate Linked Data
ldf-server:2.2.2 a doap:Version ;
doap:name "ldf-server" ;
doap:revision "2.2.2" ;
spdx:licenseDeclared spdx:MIT ;
doap:repository <git+ssh://git@github.com/…/Server.js.git> ;
npm:dependency asynciterator:^1.1.0 ;
npm:dependency jsonld:^0.4.11 ;
npm:dependency lodash:^2.4.2 .
<git+ssh://git@github.com/…/Server.js.git> a doap:GitRepository .
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23. Describing configurations as Linked Data
Interlinking software modules
Instantiating software components
Updated evaluation
23

24. LDF Server
"datasources": {
"dbpedia": {
"title": "DBpedia 2014",
"type": "HdtDatasource"
"settings": { "file": "data/dbpedia2014.hdt" }
}
}
24

25. LDF Server
"datasources": {
"dbpedia": {
"title": "DBpedia 2014",
"type": "HdtDatasource"
"settings": { "file": "data/dbpedia2014.hdt" }
}
}
JSON  JSON-LD
ex:myServer ldfs:datasource ex:MyHdtDataSource
ex:MyHdtDataSource a ldfs:DatasourceHdt;
rdfs:label "DBpedia 2014";
ldfs:hdtFile "data/dbpedia2014.hdt".
25

26. Components.js
Instantiation framework that interprets this config
ex:myServer ldfs:datasource ex:MyHdtDataSource
ex:MyHdtDataSource a ldfs:DatasourceHdt;
rdfs:label "DBpedia 2014";
ldfs:hdtFile "data/dbpedia2014.hdt".
26

27. Components.js
Instantiation framework that interprets this config
ex:myServer ldfs:datasource ex:MyHdtDataSource
ex:MyHdtDataSource a ldfs:DatasourceHdt;
rdfs:label "DBpedia 2014";
ldfs:hdtFile "data/dbpedia2014.hdt".
How?
27

28. Object Oriented Ontology
28

29. Object Oriented Ontology
29

30. Component description
ldfs:DatasourceHdt a oo:Class ;
rdfs:subClassOf ldfs:Datasource ;
oo:componentPath "datasources.HdtDatasource" ;
oo:parameter ldfs:hdtFile ;
oo:constructorArguments ([
rdfs:subclassOf ldfs:DatasourceConstructor ;
om:field [ om:fieldName "file" ;
om:fieldValue ldfs:hdtFile ]
]) .
ldfs:hdtFile rdfs:range xsd:string .
30

31. Component description
ldfs:DatasourceHdt a oo:Class ;
rdfs:subClassOf ldfs:Datasource ;
oo:componentPath "datasources.HdtDatasource" ;
oo:parameter ldfs:hdtFile ;
oo:constructorArguments ([
rdfs:subclassOf ldfs:DatasourceConstructor ;
om:field [ om:fieldName "file" ;
om:fieldValue ldfs:hdtFile ]
]) .
ldfs:hdtFile rdfs:range xsd:string .
31
class DatasourceHdt extends Datasource {
file: string;
constructor (input) {
super(input);
this.file = file;
}
}

32. Component description
ldfs:DatasourceHdt a oo:Class ;
rdfs:subClassOf ldfs:Datasource ;
oo:componentPath "datasources.HdtDatasource" ;
oo:parameter ldfs:hdtFile ;
oo:constructorArguments ([
rdfs:subclassOf ldfs:DatasourceConstructor ;
om:field [ om:fieldName "file" ;
om:fieldValue ldfs:hdtFile ]
]) .
ldfs:hdtFile rdfs:range xsd:string .
External file  can be written for existing code
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class DatasourceHdt extends Datasource {
file: string;
constructor (input) {
super(input);
this.file = file;
}
}

33. Components.js
ex:myServer ldfs:datasource ex:MyHdtDataSource
ex:MyHdtDataSource a ldfs:DatasourceHdt;
rdfs:label "DBpedia 2014";
ldfs:hdtFile "data/dbpedia2014.hdt".
Allows users to fully set up the same system by
providing a URI to a config
33

34. Describing configurations as Linked Data
Interlinking software modules
Instantiating software components
Updated evaluation
34

35. Updated evaluation
Describe steps using RDFa in HTML paper.
Link to exact versions of all modules used.
Link to RDF config file.
Link to exact evaluation results.
35

36. Updated evaluation
“5. Install the server software configuration,
implementing the TPF specification, with its
dependencies on the server.”
36

37. Updated evaluation
“5. Install the server software configuration,
implementing the TPF specification, with its
dependencies on the server.”
ldf:experiment npm:engine node:v6.8.1, npmv:4.2.0;
doap:name "ldf-server";
doap:revision "2.2.1";
doc:dependsOn strftime:0.6.2;
doc:dependsOn asynciterator:1.1.0.
strftime:0.6.2 doap:revision "0.6.2"; doap:name "strftime".
asynciterator:1.1.0 doap:revision "1.1.0"; doap:name "asynciterator".
…
37

38. Updated evaluation
“5. Install the server software configuration,
implementing the TPF specification, with its
dependencies on the server.”
ex:myServer ldfs:datasource ex:MyHdtDataSource
ex:MyHdtDataSource a ldfs:DatasourceHdt;
rdfs:label "DBpedia 2014";
ldfs:hdtFile "data/dbpedia2014.hdt".
38

39. Updated evaluation
“5. Install the server software configuration,
implementing the TPF specification, with its
dependencies on the server.”
ex:myServer ldfs:datasource ex:MyCustomDataSource
ex:MyCustomDataSource a ex:CustomDatasource;
rdfs:label "DBpedia 2014";
ex:Uri "http://example.com/custom";
ex:samples 5.
39

40. Conclusion
Interlinking research allows for…
40

41. Conclusion
Interlinking research allows for…
… better reproducability.
… better re-use.
… better research.
41