Authors: David de Boer
Source: SPARQL endpoint
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{'sparql_endpoint': 'https://triplestore.netwerkdigitaalerfgoed.nl/repositories/dataset-knowledge-graph', 'template_mode': 'statistics', 'title': 'NDE Dataset Knowledge Graph', 'color_code': ['#39c6b4', '#17cf31'], 'user_name': 'ddeboer', 'id': '1702126037.805567', 'subtitle': 'The NDE Dataset Knowledge Graph helps researchers, software developers and others to find relevant datasets for their projects. It consists of Dataset Summaries that provide statistical information about datasets.', 'curator': 'David de Boer', 'description': '', 'dynamic_elements': [{'position': 0, 'operations': [], 'type': 'count', 'count_query': 'select (count(?dataset) as ?count) { ?dataset a <http://rdfs.org/ns/void#Dataset> }', 'count_label': 'datasets analysed', 'extra_queries': [], 'map_filters': []}, {'position': 1, 'operations': [], 'type': 'count', 'count_query': 'select (sum(?subjects) as ?count) {\r\n ?s a <http://rdfs.org/ns/void#Dataset> ;\r\n <http://rdfs.org/ns/void#distinctSubjects> ?subjects\r\n}\r\n', 'count_label': 'subjects analysed', 'extra_queries': [], 'map_filters': []}, {'position': 2, 'operations': [], 'type': 'chart', 'chart_type': 'barchart', 'chart_title': 'Datasets using terminology sources', 'chart_query': 'select (?terminologySource as ?label) (count(?dataset) as ?count) {\r\n ?s a <http://rdfs.org/ns/void#Linkset> ;\r\n <http://rdfs.org/ns/void#subjectsTarget> ?dataset ;\r\n <http://rdfs.org/ns/void#objectsTarget> ?terminologySource ;\r\n <http://rdfs.org/ns/void#triples> ?numberOfTriples ;\r\n} group by ?terminologySource order by desc(?count)', 'chart_series': '', 'chart_legend': {'x': '', 'y': 'Number of datasets'}, 'extra_queries': [], 'map_filters': []}, {'position': 3, 'operations': [], 'type': 'chart', 'chart_type': 'barchart', 'chart_title': 'Vocabularies used by datasets', 'chart_query': 'select ?label (count(?dataset) as ?count) {\r\n ?dataset a <http://rdfs.org/ns/void#Dataset> ;\r\n <http://rdfs.org/ns/void#vocabulary> ?label\r\n} \r\ngroup by ?label\r\norder by desc(?count)\r\n', 'chart_series': '', 'chart_legend': {'x': '', 'y': ''}, 'extra_queries': [], 'map_filters': []}, {'position': 4, 'operations': [], 'type': 'table', 'table_title': 'Top 10 most-linked datasets', 'table_query': 'SELECT ?Dataset ?Literals ?URIs (ROUND(?URIs / (?Literals + ?URIs) * 100) as ?percentage) {\r\n ?Dataset a <http://rdfs.org/ns/void#Dataset> ;\r\n <https://www.netwerkdigitaalerfgoed.nl/def#distinctObjectsLiteral> ?Literals ;\r\n <https://www.netwerkdigitaalerfgoed.nl/def#distinctObjectsURI> ?URIs ;\r\n FILTER(?URIs > 1) \r\n}\r\norder by desc(?percentage)\r\nLIMIT 10', 'extra_queries': [], 'map_filters': []}, {'position': 5, 'operations': [], 'type': 'count', 'count_query': 'PREFIX void: <http://rdfs.org/ns/void#>\r\nPREFIX schema: <https://schema.org/>\r\n\r\nSELECT (count(?dataset) as ?count) {\r\n\t?dataset a <http://www.w3.org/ns/prov#Entity> .\r\n}', 'count_label': 'RDF datasets', 'extra_queries': [], 'map_filters': []}]}