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==Aktienführer Knowledge Graph== | ==Aktienführer Knowledge Graph== | ||
The Aktienführer Knowledge Graph contains | The Aktienführer (AKF) Knowledge Graph is free and open. It contains structured (meta)data for the German listed stock companies from the Hoppenstedt-Aktienführer from 1956 to 2018. The metadata includes official company names with time ranges, company identifiers (ISIN and WKN) and Aktienführer IDs. | ||
*[https://akf.kgi.uni-mannheim.de/wiki/Property:P346 official name] | |||
**[https://akf.kgi.uni-mannheim.de/wiki/Property:P79 start time] | |||
**[https://akf.kgi.uni-mannheim.de/wiki/Property:P76 end time] | |||
*[https://akf.kgi.uni-mannheim.de/wiki/Property:P127 ISIN] | |||
*[https://akf.kgi.uni-mannheim.de/wiki/Property:P4 WKN] | |||
*[https://akf.kgi.uni-mannheim.de/wiki/Property:P3 Aktienführer ID] | |||
**[https://akf.kgi.uni-mannheim.de/wiki/Property:P234 point in time] | |||
We enriched metadata via entity linking with other databases: [https://www.creditreform.com Creditreform], [https://www.bvdinfo.com/de-de/unsere-losungen/daten/international/orbis Bureau van Dijk Orbis], [https://www.dnb.de/DE/Professionell/Standardisierung/GND/gnd_node.html GND] and [https://www.wikidata.org Wikidata]. The knowledge graph contains [https://akf.kgi.uni-mannheim.de/w/index.php?title=Special:ListProperties/external-id&limit=500&offset=0 342] external identifiers representing various databases. | |||
==Access to AKF (meta)data== | |||
The AKF (meta)data is accessible by both humans and machines. | |||
*License: | |||
*[https://akf.kgi.uni-mannheim.de/w/index.php?title=Special:ListProperties/&limit=500&offset=0 List of properties] | *[https://akf.kgi.uni-mannheim.de/w/index.php?title=Special:ListProperties/&limit=500&offset=0 List of properties] | ||
*[https://akf.kgi.uni-mannheim.de/wiki/Special:AllPages?from=&to=&namespace=120 List of items] | *[https://akf.kgi.uni-mannheim.de/wiki/Special:AllPages?from=&to=&namespace=120 List of items] | ||
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*Every entity can be downloaded in .json, .rdf, .ttl, .nt and .jsonld formats. An example for BASF: https://akf.kgi.uni-mannheim.de/entity/Q425.json, https://akf.kgi.uni-mannheim.de/entity/Q425.rdf, https://akf.kgi.uni-mannheim.de/entity/Q425.ttl, https://akf.kgi.uni-mannheim.de/entity/Q425.nt and https://akf.kgi.uni-mannheim.de/entity/Q425.jsonld. | *Every entity can be downloaded in .json, .rdf, .ttl, .nt and .jsonld formats. An example for BASF: https://akf.kgi.uni-mannheim.de/entity/Q425.json, https://akf.kgi.uni-mannheim.de/entity/Q425.rdf, https://akf.kgi.uni-mannheim.de/entity/Q425.ttl, https://akf.kgi.uni-mannheim.de/entity/Q425.nt and https://akf.kgi.uni-mannheim.de/entity/Q425.jsonld. | ||
== | ==Use Cases== | ||
*[https://digi.bib.uni-mannheim.de/en/aktienfuehrer/overview OCR texts] | *Searching identifiers of German companies for the period 1956-2018 | ||
*[https://digi.bib.uni-mannheim.de/aktienfuehrer/data/index.php Structured Database] | *Matching your (meta)data to AKF companies | ||
*Clean your tabular data and match it to the AKF knowledge graph with [https://openrefine.org OpenRefine] | |||
*Semantic annotation of tabular data using the AKF knowledge graph with [https://github.com/UB-Mannheim/bbw bbw] | |||
*Federated queries over AKF, Wikidata and other SPARQL endpoints | |||
==Get involved== | |||
*You can contribute to this project in various ways: matching data, data quality checks and data editing/upload. | |||
*You can get an account here via email request to the [https://fdz.bib.uni-mannheim.de Research Data Center at UB Mannheim]. Please write "Request an account at the AKF KG" as a subject. | |||
*If you are new to knowledge graphs, check out materials at [https://github.com/shigapov/wikibase-knowledge-graphs Wikibase Knowledge Graphs]. | |||
*The AKF knowledge graph is based on [https://wikiba.se Wikibase], the software behind [https://www.wikidata.org Wikidata]. Therefore the [https://www.wikidata.org/wiki/Wikidata:Tours Wikidata tutorials] are also highly recommended. | |||
==External Resources== | |||
*[https://digi.bib.uni-mannheim.de/en/aktienfuehrer/overview AKF OCR-ed texts] | |||
*[https://digi.bib.uni-mannheim.de/aktienfuehrer/data/index.php AKF Structured Database with full data:] Restricted access for research purposes only | |||
Revision as of 07:05, 4 April 2023
Aktienführer Knowledge Graph
The Aktienführer (AKF) Knowledge Graph is free and open. It contains structured (meta)data for the German listed stock companies from the Hoppenstedt-Aktienführer from 1956 to 2018. The metadata includes official company names with time ranges, company identifiers (ISIN and WKN) and Aktienführer IDs.
We enriched metadata via entity linking with other databases: Creditreform, Bureau van Dijk Orbis, GND and Wikidata. The knowledge graph contains 342 external identifiers representing various databases.
Access to AKF (meta)data
The AKF (meta)data is accessible by both humans and machines.
- License:
- List of properties
- List of items
- Advanced search for items
- SPARQL endpoint
- API
- Export to CSV
- Every entity can be downloaded in .json, .rdf, .ttl, .nt and .jsonld formats. An example for BASF: https://akf.kgi.uni-mannheim.de/entity/Q425.json, https://akf.kgi.uni-mannheim.de/entity/Q425.rdf, https://akf.kgi.uni-mannheim.de/entity/Q425.ttl, https://akf.kgi.uni-mannheim.de/entity/Q425.nt and https://akf.kgi.uni-mannheim.de/entity/Q425.jsonld.
Use Cases
- Searching identifiers of German companies for the period 1956-2018
- Matching your (meta)data to AKF companies
- Clean your tabular data and match it to the AKF knowledge graph with OpenRefine
- Semantic annotation of tabular data using the AKF knowledge graph with bbw
- Federated queries over AKF, Wikidata and other SPARQL endpoints
Get involved
- You can contribute to this project in various ways: matching data, data quality checks and data editing/upload.
- You can get an account here via email request to the Research Data Center at UB Mannheim. Please write "Request an account at the AKF KG" as a subject.
- If you are new to knowledge graphs, check out materials at Wikibase Knowledge Graphs.
- The AKF knowledge graph is based on Wikibase, the software behind Wikidata. Therefore the Wikidata tutorials are also highly recommended.
External Resources
- AKF OCR-ed texts
- AKF Structured Database with full data: Restricted access for research purposes only