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First ACM International Conference on Web Search and Data Mining - WSDM 2008

On Ranking Controversies in Wikipedia: Models and Evaluation

coauthor: Ee-Peng Lim, Division of Information Systems, School of Computer Engineering, Nanyang Technological University
coauthor: Ba-Quy Vuong, Computer Sciences Department, University of Wisconsin - Madison

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*Slides*
0:00	On Ranking Controversies in Wikipedia: Models and Evaluation
1:04	Outline
1:52	Wikipedia
2:34	Controversy Topics in Wikipedia
3:49	Example
4:34	Controversial Topics in Wikipedia
5:42	Challenges in Finding Controversial Articles
6:24	Current Solution
7:07	Overview of Our Approach
8:04	Article Tag Count (ATC)
9:09	Dataset
10:07	Articles Ordered by Revision Count
10:48	Controversy Labeled Articles Ordered by Revision Count
11:18	Top 20 Articles (Revision Count)
11:38	Top 20 Articles (Contributor Count)
11:54	Disputes in a Bipartite Graph
12:53	Contribution by Users
13:13	Basic Model
14:02	Controversy Rank (CR) Model - 1
15:46	Controversy Rank (CR) Model - 2
17:50	Choice of Agg
18:22	Evaluation Metrics
20:00	Result: F1
20:57	Result: NDCG
21:29	Result: Top 20 Articles - 1
22:12	Result: Top 20 Articles - 2
22:41	Mis-"Controversial" Articles
23:41	Controversial Score of Article
23:54	Results: NDCG
24:17	Result: Top 20 Articles - 3
24:39	Conclusions
25:06	Future Work
25:27	Thank You

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