Accessibility

Overall quality of the Accessibility quality category over time

Evaluation results by quality dimension

Availability

Punctual availability of SPARQL endpoint, RDF dump and VoID file

Only Data Dump available	225
SPARQL and Data Dump online	82
Data Dump and VoID online	28
Only SPARQL endpoint online	24
SPARQL endpoint, Data Dump, and VoID file online	12
SPARQL and VoID online	1
Only VoID file online	0

SPARQL endpoint availability over time

Status	Number of KGs
Always without indication of the endpoint SPARQL endpoint	1072
Always Offline	152
Swinging	140
Always Online	69
Always with restrictions on access to the SPARQL endpoint	10

KG that provide at least one access point between SPARQL endpoint, Data Dump and VoID file.

Licensing

License from metadata

Conformat and not deprecated

License (metadata)	License (metadata) - made uniform	URL	Conformant to the Open Knowledge Definition	Domain of application: Data/Content/Code	Deprecated/Superseded	Is Machine redeable?	count
Not indicated	-	-	-	-	-		735
http://www.opendefinition.org/licenses/cc-by	CC-BY	YES	YES	Content, Data	UNCLEAR	NO	302
http://www.opendefinition.org/licenses/cc-zero	CC-0	YES	YES	Content, Data	UNCLEAR	NO	169
http://www.opendefinition.org/licenses/cc-by-sa	CC-BY-SA	YES	YES	Content, Data	UNCLEAR	NO	160
http://creativecommons.org/licenses/by-nc/2.0/	CC-BY-NC	YES	NO	-	NO	NO	91
http://www.opendefinition.org/licenses/odc-odbl	ODC-ODBL	YES	YES	Data	UNCLEAR	NO	39
http://www.opendefinition.org/licenses/odc-by	ODC-BY	YES	YES	Data	UNCLEAR	NO	26
http://www.opendefinition.org/licenses/odc-pddl	ODC-PDDL	YES	YES	Data	UNCLEAR	NO	23
https://creativecommons.org/licenses/by/3.0/	CC-BY	YES	YES	Content	YES	NO	17
http://www.opendefinition.org/licenses/gfdl	GFDL	YES	YES	Content	NO	NO	14
http://reference.data.gov.uk/id/open-government-licence	OGL-UK	YES	UNCLEAR		UNCLEAR	NO	13
https://opendefinition.org/licenses/fal	FAL	YES	YES	Content	UNCLEAR	NO	12
https://creativecommons.org/licenses/by-sa/3.0/	CC-BY-SA	YES	YES	Content	YES	NO	11
https://wordnet.princeton.edu/license-and-commercial-use	WordNet license	YES	UNCLEAR	Code, Data	NO	NO	9
https://opensource.org/licenses/MIT	MIT	YES	YES	Code	UNCLEAR	NO	6
https://www.apache.org/licenses/LICENSE-2.0	Apache	YES	YES	Code	NO	NO	4
Metadata not available	-	-	-	-	-	-	3
http://www.cecill.info/licences/Licence_CeCILL-C_V1-en.html	CeCILL	YES	YES	Code	YES	NO	2
https://opendefinition.org/licenses/against-drm	Against DRM	YES	YES	Content	UNCLEAR	NO	2
http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/	OGL-UK	YES	YES	Content, Data	NO	NO	2
http://compling.hss.ntu.edu.sg/omw/wns/bul/LICENSE	Not working	YES	UNCLEAR	UNCLEAR	UNCLEAR	NO	1
http://compling.hss.ntu.edu.sg/omw/wns/cmn/LICENSE	Not working	YES	UNCLEAR	UNCLEAR	UNCLEAR	NO	1
http://compling.hss.ntu.edu.sg/omw/wns/qcn/LICENSE	Not working	YES	UNCLEAR	UNCLEAR	UNCLEAR	NO	1
https://creativecommons.org/publicdomain/zero/1.0/	CC-0	YES	YES	Content, Data	NO	NO	1
https://opendatacommons.org/licenses/by/1-0/	ODC-BY	YES	YES	Data	NO	NO	1
http://compling.hss.ntu.edu.sg/omw/wns/glg/LICENSE	Not working	YES	UNCLEAR	UNCLEAR	UNCLEAR	NO	1
http://compling.hss.ntu.edu.sg/omw/wns/nld/LICENSE	Not working	YES	UNCLEAR	UNCLEAR	UNCLEAR	NO	1
https://creativecommons.org/licenses/by-nc-sa/2.0/fr/	CC-BY-NC-SA	YES	NO	-	YES	NO	1
https://creativecommons.org/licenses/by-nc-sa/3.0/de/	CC-BY-NC-SA	YES	UNCLEAR	UNCLEAR	UNCLEAR	NO	1
https://scigraph.springernature.com/explorer/license/	Not working	YES	UNCLEAR	UNCLEAR	UNCLEAR	NO	1
https://opendefinition.org/licenses/tcl	TCL	YES	YES	Data	UNCLEAR	NO	1
https://opendefinition.org/licenses/miros	MirOS	YES	YES	Code, Content	UNCLEAR	NO	1

License from metadata into the KG

License	Uniformed licenses	URL	Conformant to the Open Knowledge Definition	Domain of application: Data/Content/Code	Deprecated/Superseded	Is Machine redeable?	Occurrences
http://creativecommons.org/licenses/by/3.0/	CC-BY	YES	YES	Content	YES	NO	33
-	Missing	NO	NO	NO	NO	NO	31
http://www.opendatacommons.org/licenses/pddl/1.0/	ODC-PDDL	YES	YES	Data	NO	NO	5
http://www.nationalarchives.gov.uk/doc/open-government-licence/	OGL-UK	YES	YES	Content, Data	NO	NO	5
http://creativecommons.org/licenses/by-nc-nd/3.0/	CC-BY-NC-ND	YES	NO	-	YES	NO	4
https://w3id.org/italia/env/ld/catalog/license/ccby40	CC-BY	YES	YES	Content, Data	NO	NO	3
http://creativecommons.org/licenses/by-sa/3.0/	CC-BY-SA	YES	YES	Content	YES	NO	3
http://creativecommons.org/licenses/by/4.0/	CC-BY	YES	YES	Content, Data	NO	NO	3
https://creativecommons.org/licenses/by-nc/4.0/	CC-BY-NC	YES	NO	-	NO	NO	3
http://creativecommons.org/licenses/by-sa/4.0/	CC-BY-SA	YES	YES	Content, Data	NO	NO	2
http://creativecommons.org/publicdomain/zero/1.0/	CC-0	YES	YES	Content, Data	NO	NO	2
https://creativecommons.org/licenses/by-sa/4.0/	CC-BY-SA	YES	YES	Content, Data	NO	NO	2
Copyright 2014; Milos Jovanovik	Missing	NO	NO	NO	NO	NO	2
http://prov.vic.gov.au/copyright	Not working	YES	UNCLEAR	UNCLEAR	UNCLEAR	NO	2
https://creativecommons.org/licenses/by/3.0/	CC-BY	YES	YES	Content	YES	NO	2
cc-by	CC-BY	NO	YES	At least Content, it is up to the version, which is unknown	UNCLEAR	NO	2
https://creativecommons.org/licenses/by/3.0/deed.it	CC-BY	YES	YES	Content	YES	NO	2
https://creativecommons.org/licenses/by/4.0/	CC-BY	YES	YES	Content, Data	NO	NO	2
https://creativecommons.org/licenses/by-nc-sa/4.0/	CC-BY-NC-SA	YES	NO	-	NO	NO	1
http://creativecommons.org/licenses/by-nc-sa/3.0/	CC-BY-NC-SA	YES	NO	-	YES	NO	1
http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/	OGL-UK	YES	YES	Content, Data	NO	NO	1
https://creativecommons.org/licenses/by-nc-sa/2.0/deed.en	CC-BY-NC-SA	YES	NO	-	YES	NO	1
https://www.ebi.ac.uk/about/terms-of-use	EMBL-EBI	YES	UNCLEAR	Data, Code	NO	NO	1
http://publications.europa.eu/resource/authority/licence/APACHE_2_0	Apache2.0	YES	YES	Code	NO	YES	1
http://creativecommons.org/licenses/by-sa/3.0/igo/	CC-BY-SA	YES	YES	Content	YES	NO	1
http://creativecommons.org/licenses/by-sa/3.0/at/	CC-BY-SA	YES	YES	Content	YES	NO	1
Copyright 2009 - 2010 W3C.	Missing	NO	NO	NO	NO	NO	1
http://w3id.org/italia/controlled-vocabulary/licences/A21_CCBY40	CC-BY	YES	YES	Content, Data	NO	NO	1
http://creativecommons.org/licenses/by/4.0	CC-BY	YES	YES	Content, Data	NO	NO	1
http://reference.data.gov.uk/id/open-government-licence	Not working	YES	UNCLEAR	UNCLEAR	UNCLEAR	NO	1
CC-BY 4.0	CC-BY	NO	YES	Content, Data	NO	NO	1
http://creativecommons.org/licenses/by-nc-sa/3.0/fr/	CC-BY-NC-SA	YES	NO	-	YES	NO	1
https://portal.gov.cz/portal/ostatni/volny-pristup-k-ds.html	Not working	YES	UNCLEAR	UNCLEAR	UNCLEAR	NO	1
https://data.gov.cz/zdroj/datové-sady/00023221/1042474980/distribuce/b04d14a3f173750f5614e9e987010419/podmínky-užití	tilde CC-0	YES	YES	Data	UNCLEAR	YES	1
https://creativecommons.org/publicdomain/zero/1.0/	CC-0	YES	YES	Content, Data	NO	NO	1
https://creativecommons.org/licenses/by/4.0/deed.it	CC-BY	YES	YES	Content, Data	NO	NO	1
http://creativecommons.org/licenses/by/2.1/jp/	CC-BY	YES	YES	Content	YES	NO	1
http://ja.wikipedia.org/wiki/ファイル:Anthony_van_Dyck_-_Self-Portrait_-_WGA07407.jpg	-	-	-	-	-		1

Availability and Licensing

The following table shows the licensing data that relate to KGs that have at least: a SPARQL endpoint, RDF dump or VoID file online and have a license indication (in the metadata from LOD Cloud or in the metadata in the KG)

LICENSES	Uniformed license	URL	Conformant to the Open Knowledge Definition	Domain of application: Data/Content/Code	Deprecated/Superseded	Is Machine redeable?	# Occourcences
http://creativecommons.org/licenses/by/3.0/	CC-BY 3.0	YES	YES	Content	YES	NO	35
http://purl.oclc.org/NET/rdflicense/gpl-3.0	-	YES	UNCLEAR	UNCLEAR	UNCLEAR	NO	23
http://www.opendefinition.org/licenses/cc-by-sa	CC-BY-SA	YES	YES	Content, Data	UNCLEAR	NO	24
http://publications.europa.eu/resource/authority/licence/APACHE_2_0	Apache	YES	YES	Code	NO	YES	14
http://www.opendefinition.org/licenses/cc-by	CC-BY	YES	YES	Content, Data	UNCLEAR	NO	16
http://www.opendefinition.org/licenses/cc-zero	CC-0	YES	YES	Content, Data	UNCLEAR	NO	8
http://creativecommons.org/publicdomain/zero/1.0/	CC-0	YES	YES	Content, Data	NO	NO	10
https://creativecommons.org/licenses/by/4.0/	CC-BY	YES	YES	Content, Data	NO	NO	7
http://creativecommons.org/licenses/by-sa/3.0/	CC-BY-SA	YES	YES	Content	YES	NO	5
http://www.nationalarchives.gov.uk/doc/open-government-licence/	OGL-UK	YES	YES	Content, Data	NO	NO	5
http://www.opendatacommons.org/licenses/pddl/1.0/	ODC-PDDL	YES	YES	Data	NO	NO	5
http://creativecommons.org/licenses/by-nc-nd/3.0/	CC-BY-NC-ND	YES	NO	-	YES	NO	4
http://creativecommons.org/licenses/by/4.0	CC-BY	YES	YES	Content, Data	NO	NO	4
https://creativecommons.org/licenses/by/3.0/	CC-BY 3.0	YES	YES	Content	YES	NO	4
http://creativecommons.org/licenses/by-nc/2.0/	CC-BY-NC 2.0	YES	NO	-	NO	NO	3
http://creativecommons.org/licenses/by/2.5/dk/	CC-BY 2.5	YES	YES	Content	YES	NO	3
https://creativecommons.org/licenses/by-nc/4.0/	CC-BY-NC	YES	NO	-	NO	NO	3
Creative Commons Non-Commercial (Any) - cc-nc -	CC-NC	NO	NO	Content	NO	NO	2
http://creativecommons.org/licenses/by-sa/4.0/	CC-BY-SA	YES	YES	Content, Data	NO	NO	2
http://prov.vic.gov.au/copyright	Not working	YES	UNCLEAR	UNCLEAR	UNCLEAR	NO	2
http://www.opendefinition.org/licenses/odc-by	ODC-BY	YES	YES	Data	UNCLEAR	NO	2
https://creativecommons.org/licenses/by-nc-nd/4.0/	CC-BY-NC-ND	YES	NO	-	YES	NO	2
https://creativecommons.org/licenses/by-sa/4.0/	CC-BY-SA	YES	YES	Content, Data	NO	NO	2
https://creativecommons.org/licenses/by/3.0/deed.it	CC-BY	YES	YES	Content	YES	NO	2
https://w3id.org/italia/env/ld/catalog/license/ccby40	CC-BY	YES	YES	Content, Data	NO	NO	2
Other (Non-Commercial) - other-nc -	NC	NO	NO	-	-	NO	2
http://creativecommons.org/licenses/by-nc-sa/3.0/	CC-BY-NC-SA	YES	NO	-	YES	NO	1
http://creativecommons.org/licenses/by-nc-sa/3.0/fr/	CC-BY-NC-SA	YES	NO	-	YES	NO	1
http://creativecommons.org/licenses/by-sa/3.0/at/	CC-BY-SA	YES	YES	Content	YES	NO	1
http://creativecommons.org/licenses/by-sa/3.0/us/	CC-BY-SA	YES	YES	Content	YES	NO	1
http://creativecommons.org/licenses/by/2.1/jp/	CC-BY	YES	YES	Content, Data	YES	NO	1
http://data.open.ac.uk/musow/88da92e059fb13512a7846a2b487efe0	OGL-UK	YES	YES	Content, Data	NO	NO	1
http://opendatacommons.org/licenses/odbl/1.0/	ODC-ODBL	YES	YES	Data	UNCLEAR	NO	1
http://reference.data.gov.uk/id/open-government-licence	Not working	YES	UNCLEAR	UNCLEAR	UNCLEAR	NO	1
http://w3id.org/italia/controlled-vocabulary/licences/A21_CCBY40	CC-BY	YES	YES	Content, Data	NO	NO	1
http://www.opendatacommons.org/licenses/odbl/	ODC-ODBL	YES	YES	Data	UNCLEAR	NO	1
https://creativecommons.org/licenses/by-nc-nd/2.0/de/deed.en	CC-BY-NC-ND	YES	NO	-	YES	NO	1
https://creativecommons.org/licenses/by-nc-sa/2.0/deed.en	CC-BY-NC-SA	YES	NO	-	YES	NO	1
https://creativecommons.org/licenses/by-nc-sa/2.0/fr/	CC-BY-NC-SA	YES	NO	-	YES	NO	1
https://creativecommons.org/licenses/by-nc-sa/4.0/	CC-BY-NC-SA	YES	NO	-	NO	NO	1
https://creativecommons.org/licenses/by-sa/3.0/	CC-BY-SA	YES	YES	Content	YES	NO	1
https://creativecommons.org/licenses/by/4.0/deed.it	CC-BY	YES	YES	Content, Data	NO	NO	1
https://creativecommons.org/publicdomain/zero/1.0/	CC-0	YES	YES	Content, Data	NO	NO	1
https://portal.gov.cz/portal/ostatni/volny-pristup-k-ds.html	Not working	YES	UNCLEAR	UNCLEAR	UNCLEAR	NO	1
Open Data Commons Attribution License - odc-by -	ODC-BY	NO	YES	Data	UNCLEAR	NO	1
Open Data Commons Open Database License (ODbL) - odc-odbl -	ODC-ODBL	NO	YES	Data	UNCLEAR	NO	1
Other (Open) - other-open -	UNCLEAR	UNCLEAR	UNCLEAR	UNCLEAR	UNCLEAR	NO	1