1. IntelWiki: Recommending Resources to Help Users Contribute to Wikipedia Mohammad Noor Nawaz and Andrea Bunt University of Manitoba 1

2. User Generated Content 2

3. Voluntary Contribution 3 Image Courtesy: Wikimedia Commons

4. Typical Contribution Rates 4 Stuckman et al., WikiSym 2009 Nielsen Contributors (9%) Consumers (90%) Creators (1%)

5. Increasing Contribution Rates Make it easier! 5 Wilkinson, EC 2008 Hoffmann et al., CHI 2009 Nielsen

6. State of the Art 6

7. Our Contributions Novel approach to facilitating Wikipedia contributions to free-form text ─ resource recommendations Prototype illustrating approach Proof-of-concept empirical evaluation 7

8. 8 Our Approach

9. IntelWiki Prototype: Framework Resource Ranker Resource Fetcher Resource Presenter 9 IntelWiki

10. IntelWiki - Demo 10 For demonstration video see: http://hci.cs.umanitoba.ca/projects- and-research/details/intelwiki

11. Evaluation Conditions 1.IntelWiki 2.Default 16 participants Within subjects 11

12. Tasks 12

13. Perceived Workload (NASA TLX) 13 F 1,14 = 11.653; p = 0.004

14. Word Count 14 F 1,14 = 5.302; p = 0.037

15. Fact Count 15 F 1,14 = 7.304; p = 0.017

16. Fact Count 16

17. Preference 17

18. Integrated Editing [I preferred IntelWiki] because it gives me everything in one window. 18

19. Easier Resource Inspection The keywords in the tooltip helped me understand which article will be more suitable for geography. [Keyword highlighting] was very helpful; didn't have to read the whole page, or even the paragraph, only the lines containing the highlighted words. 19

20. Replacing Manual Search [IntelWiki] eliminated any need for [additional searches] because, virtually anything that's needed I think was provided in the [recommended resources] 20

21. Lack of Trust I don't usually trust the highlight and these things. I prefer to study by myself. I preferred the [Default interface] because I can get more facts -- I don't really have to base my knowledge on a limited set of resources. It makes me more elaborate in my research. - P10 21

22. Summary Resource recommendations as an way to facilitate Wikipedia contributions IntelWiki prototype Improved editing quantity and quality, and cognitive load 22

23. Future Work 23

24. IntelWiki: Recommending Resources to Help Users Contribute to Wikipedia Mohammad Noor Nawaz and Andrea Bunt University of Manitoba bunt@cs.umanitoba.ca hci.cs.umanitoba.ca 24