KartoGraphI: Knowledge graph cartography and index

Visualisation of the results obtained by IndeGx

: Marker used for endpoints. : Marker used for endpoints that are using a timezone different to the one corresponding to their IP.
Endpoint Latitude Longitude Country Region City Org
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Select a run set. Each run set concerns a set of endpoints targeted by IndeGx over several runs:

Query for the list of vocabularies
Query for the list of keywords
Endpoint Keywords
*: Only the vocabularies listed in Linked Open Vocabularies and prefix.cc are shown.

Estimation of the SPARQL features covered by the endpoints

SPARQL
SPARQL 1.0
SPARQL 1.1
Endpoint Percentage of SPARQL 1.0 features Percentage of SPARQL 1.1 features
Endpoint Feature

Datasets populations

Size of datasets through time
Number of classes through time
Number of properties through time
Class Number of instances Number of classes used conjointly Number of properties used conjointly Number of distinct subjects linked to instances Number of distinct objects linked to instances Number of endpoints using this class

Datasets Descriptions

Endpoint Who ? License Date Source

Quality measures

Measure Value
Short URIs TBD
Endpoint Score
Measure Value
Minimal usage of RDF data structures
Endpoint Score
Measure Value
Use of known vocabularies*
Endpoint Score
Measure Value
Readable labels
Endpoint Score
Measure Value
Blank node usage
Endpoint Score
*: This measure can only be computed for the endpoints that have returned their list of used vocabularies.
This website was created as part of the ANR project DeKaloG.
The code of this site and of the application that generated the RDF data it exploits, are hosted on Github.
The results displayed on this website inpired the creation of Metadatamatic, a tool for the generation of dataset description.
 To cite this work: 
                                @inproceedings{maillot:hal-03652865,
                                    TITLE = {{KartoGraphI: Drawing a Map of Linked Data}},
                                    AUTHOR = {Maillot, Pierre and Corby, Olivier and Faron, Catherine and Gandon, Fabien and Michel, Franck},
                                    URL = {https://hal.archives-ouvertes.fr/hal-03652865},
                                    BOOKTITLE = {{ESWC 2022 - 19th European Semantic Web Conferences}},
                                    ADDRESS = {Hersonissos, Greece},
                                    PUBLISHER = {{Springer}},
                                    YEAR = {2022},
                                    MONTH = May,
                                    KEYWORDS = {linked data ; semantic web}
                                }
To cite the article about the IndeGx framework that generated the data displayed on this website: 
                                @article{maillot:hal-03946680,
                                    TITLE = {{IndeGx: A Model and a Framework for Indexing RDF Knowledge Graphs with SPARQL-based Test Suits}},
                                    AUTHOR = {Maillot, Pierre and Corby, Olivier and Faron, Catherine and Gandon, Fabien and Michel, Franck},
                                    URL = {https://hal.science/hal-03946680},
                                    JOURNAL = {{Journal of Web Semantics}},
                                    PUBLISHER = {{Elsevier}},
                                    PAGES = {100775},
                                    YEAR = {2023},
                                    MONTH = Jan,
                                    DOI = {10.1016/j.websem.2023.100775},
                                    KEYWORDS = {semantic index metadata extraction dataset description endpoint description knowledge graph ; semantic index ; metadata extraction ; dataset description ; endpoint description ; knowledge graph},
                                    PDF = {https://hal.science/hal-03946680/file/_DeKaloG__IndeGx___Web_Semantics_2022-1.pdf},
                                    HAL_ID = {hal-03946680},
                                    HAL_VERSION = {v1},
                                  }