A Closer Look at the Changing Dynamics of DBpedia Mappings
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The document presents an analysis of the changing dynamics of DBpedia mappings, highlighting collaborative crowdsourcing efforts and the mapping data collection pipeline. It summarizes results including the total number of mappings, edits, and contributors across different language chapters, as well as trends in edit frequency over time. Future work is proposed to further analyze edit actions and collaborative processes in DBpedia mappings.
A Closer Look at the Changing Dynamics of DBpedia Mappings
- 1. A Closer Look at the Changing Dynamics of DBpedia Mappings Dr.-Ing. Maribel Acosta 14th DBpedia Community Meeting, Karlsruhe, Germany
- 2. Motivation: Collaborative Crowdsourcing 2 F. Flöck, M. Acosta: WikiWho: precise and efficient attribution of authorship of revisioned content. WWW 2014.
- 3. Motivation: Collaborative Crowdsourcing 3 https://www.wikiwho.net German Wikipedia article à Autoren (bottom of the page) à wikiwho
- 4. Approach 4
- 5. 5
- 6. Data Collection Pipeline Get Mapping Namespaces Get Mapping Id per Namespace Get Mapping Metadata 6 http://mappings.dbpedia.org/api.php {'action': 'query', 'meta': 'siteinfo', 'siprop': 'namespaces'} {'action': 'query', 'list': 'allpages', 'apnamespace': %ns%, 'apcontinue' : %cont%} {'action': 'query', 'pageids‘: %pageid%, 'prop': 'revisions', 'rvlimit': 'max', 'continue': %cont%, 'rvprop': 'timestamp|user|userid'}
- 7. Overview of the Results Total number of mappings: 6,374 Total number of edits: 28,664 Total number of contributors: 283 7 As of 11. August 2019
- 8. Mappings per DBpedia Chapter • Coverage of DBpedia mappings with respect to Wikipedia properties 8
- 9. Mappings per DBpedia Chapter 9 • Chapters with high number of mappings (>400): English, Dutch, Serbian 1 1 1 1
- 10. Edits over Time • Freshness of the Wiki • Maintenance effort 10
- 11. Edits over Time: DBpedia Chapters (en, de) 11 • (en) Most of the edits were performed when the chapter was created • (de) Peaks of edits in 2011, 2014, 2015 (mostly about places) 1 2 2 2 1 2
- 12. Edits over Time: All DBpedia Chapters 12 1 1 1 2 1 • Most of the edits were performed when the chapter was created • Edits decreased considerably (in all chapters). Convergence? 1 2
- 13. Edits per DBpedia Mapping • Correctness / quality of individual mappings (?) 13
- 14. Edits per DBpedia Mapping 14 Mapping en:Infobox officeholder Mapping ja:声優 Mapping el:Κουτί πληροφοριών εκλογών Mapping sv:Geobox • Ukranian Chapter presents the highest median (over 10 edits per mapping) • 75th Percentile (Q3) is lower than 10 in most chapters 1 1
- 15. Contributors per DBpedia Chapter • Completeness of mappings • Mapping coverage of DBpedia chapters 15
- 16. Contributors per DBpedia Chapter 16 1 1 1 • Chapters with high number of contributors: English, Portuguese, German, Greek • No significant correlation between # contributors and # mappings (p=-0.08, p-value=0.56) 1 1
- 17. Co-editing Network of DBpedia 17 • Editors contributing to the same mappings • Editors across several DBpedia Chapters
- 19. Outlook 19
- 20. Future Work • Analyze the edits of the ontology namespaces and compare them with the mapping edits • Incorporating into the analysis other collaborative platforms used in the development of DBpedia, e.g., GitHub • Identify the type of edit actions – content creation, deletion, correction – in DBpedia mappings (WikiWho) • Create the interaction network to understand the collaborative process of creating the DBpedia mappings (WhoVis) 20
- 21. 21 WhoVis Fabian Flöck, Maribel Acosta: whoVIS: Visualizing Editor Interactions and Dynamics in Collaborative Writing Over Time. WWW (Companion Volume) 2015
- 23. A Closer Look at the Changing Dynamics of DBpedia Mappings