CiteULike: Everyone's Library

Transcription

1 CiteULike: Everyone's Library Dirk Volland Wirtschaftsinformatik Computer Science Department Ubiquitous Knowledge Processing Lab Dirk Volland 1

2 Everyone's Library Y. Yanbe, et al. (2007). `Can social bookmarking enhance search in the web?'. In JCDL '07: Proceedings of the 2007 conference on Digital libraries, pp , New York, NY, USA. ACM Press Computer Science Department Ubiquitous Knowledge Processing Lab Dirk Volland 2

3 Outline Typical Workflow Benefits: Unique Selling Point Web 2.0: Collaborative Approach Data Usage Possibilities Interesting Facts Competition Scientific Research Grading and Conclusion Computer Science Department Ubiquitous Knowledge Processing Lab Dirk Volland 3

4 Outline Typical Workflow Benefits: Unique Selling Point Web 2.0: Collaborative Approach Data Usage Possibilities Interesting Facts Competition Scientific Research Grading and Conclusion Computer Science Department Ubiquitous Knowledge Processing Lab Dirk Volland 4

5 A Typical Workflow Computer Science Department Ubiquitous Knowledge Processing Lab Dirk Volland 5

6 A Typical Workflow javascript:location.href=' '+encodeuricomponent(location.href)+'&title='+encodeuricomponent(document.title) Computer Science Department Ubiquitous Knowledge Processing Lab Dirk Volland 6

7 A Typical Workflow Computer Science Department Ubiquitous Knowledge Processing Lab Dirk Volland 7

8 A Typical Workflow Computer Science Department Ubiquitous Knowledge Processing Lab Dirk Volland 8

9 A Typical Workflow Computer Science Department Ubiquitous Knowledge Processing Lab Dirk Volland 9

10 A Typical Workflow Computer Science Department Ubiquitous Knowledge Processing Lab Dirk Volland 10

11 Outline A Typical Workflow Benefits: Unique Selling Point Web 2.0: Collaborative Approach Data Usage Possibilities Interesting Facts Competition Scientific Research Grading and Conclusion Computer Science Department Ubiquitous Knowledge Processing Lab Dirk Volland 11

12 Benefits: Unique Selling Point Social Aspect Share library, find who is reading the same, browsing Groups, Watchlists, Tags, Neighbours, Connections Discussions, Blogs, Profiles Twitter Organisational Aspect Web as natural tool, server-based Search features,use of tags to group papers Upload of pdf files Groups, Rating, Import/Export, RSS feeds Scientific Aspect Cross-fertilization Recommendation system Identification of research trends Sam meln Such en Teilen Computer Science Department Ubiquitous Knowledge Processing Lab Dirk Volland 12

13 Outline A Typical Workflow Benefits: Unique Selling Point Web 2.0: Collaborative Approach Data Usage Possibilities Interesting Facts Competition Scientific Research Grading and Conclusion Computer Science Department Ubiquitous Knowledge Processing Lab Dirk Volland 13

14 Web 2.0: Collaborative Approach Social Aspect Principle of social bookmarking Sharing of scientific references Learning from each other Collaboration in groups/forums/blogs Wisdom of the crowds Normalization of bookmarks Matching is done via DOI and PMID Does collaboration work? 6189 of posts copied directly from other users libraries (in 11/08) Factor of people just browsing vs. Registering/posting: 5: Computer Science Department Ubiquitous Knowledge Processing Lab Dirk Volland 14

15 Outline A Typical Workflow Benefits: Unique Selling Point Web 2.0: Collaborative Approach Data Usage Possibilities Interesting Facts Competition Scientific Research Grading and Conclusion Computer Science Department Ubiquitous Knowledge Processing Lab Dirk Volland 15

16 Data Usage Possibilities Spider the whole website Download of datasets available from May 2007 daily basis Available datasets: Who-posted-what data Article linkout data Group membership data Who bookmarked what? How many people cited a given publication? How many people potentially read a given publication? Which groups are most active? Textmining Identification of research trends Computer Science Department Ubiquitous Knowledge Processing Lab Dirk Volland 16

17 Outline A Typical Workflow Benefits: Unique Selling Point Web 2.0: Collaborative Approach Data Usage Possibilities Interesting Facts Competition Scientific Research Grading and Conclusion Computer Science Department Ubiquitous Knowledge Processing Lab Dirk Volland 17

18 Interesting Facts CiteULike Own calculation Users (registered) (who posted) Articles 2.6 Mio. 1.6 Mio. (distinct) Groups Users in groups Tags 6.7 mio (total) (distinct) 5 people are behind the service CiteULike Software is not open source Uses Apache Lucene open-source search software Code is a mix of Tcl, Common Lisp, Perl, and Erlang; data is stored using PostgreSQL Open source version of plugin interface under the BSD license Plugins can be contributed using subversion Computer Science Department Ubiquitous Knowledge Processing Lab Dirk Volland 18

19 Interesting Facts Computer Science Department Ubiquitous Knowledge Processing Lab Dirk Volland 19

20 Interesting Facts Computer Science Department Ubiquitous Knowledge Processing Lab Dirk Volland 20

21 Outline A Typical Workflow Benefits: Unique Selling Point Web 2.0: Collaborative Approach Data Usage Possibilities Interesting Facts Competition Scientific Research Grading and Conclusion Computer Science Department Ubiquitous Knowledge Processing Lab Dirk Volland 21

22 Competition Computer Science Department Ubiquitous Knowledge Processing Lab Dirk Volland 22 Retrieved from:

23 Competition Organization (commercial) (commercial) Collaboration Computer Science Department Ubiquitous Knowledge Processing Lab Dirk Volland 23

24 Outline A Typical Workflow Benefits: Unique Selling Point Web 2.0: Collaborative Approach Data Usage Possibilities Interesting Facts Competition Scientific Research Grading and Conclusion Computer Science Department Ubiquitous Knowledge Processing Lab Dirk Volland 24

25 Scientific Research Search and Ranking Tag ambiguity Vocabulary Patterns Tag suggestions Why do tagging systems work? Social Tagging and Folksonomies Navigability Impact of predefined tags Recommendation Systems Tag usage Computer Science Department Ubiquitous Knowledge Processing Lab Dirk Volland 25

26 Outline A Typical Workflow Benefits: Unique Selling Point Web 2.0: Collaborative Approach Data Usage Possibilities Interesting Facts Competition Scientific Research Grading and Conclusion Computer Science Department Ubiquitous Knowledge Processing Lab Dirk Volland 26

27 Grading and Conclusion Quality? Valuable resource for anyone doing research Remarkably free of spam links Good Citation extraction (only from supported sites) Interesting alternatives: Zotero, Mendeley Best of breed? Community features from Connotea Organising functions from Zotero or Mendeley Barriers of use? Online storage, tagging vs. Folders Specialisation vs. Cross-Disciplinarity (tag: evolution ) Next steps? API for reference managers to integrate Publish more impact metrics Better recommendation system by automated collaborative filtering? Computer Science Department Ubiquitous Knowledge Processing Lab Dirk Volland 27

28 Thank you for your attention! Computer Science Department Ubiquitous Knowledge Processing Lab Dirk Volland 28

29 Backup Computer Science Department Ubiquitous Knowledge Processing Lab Dirk Volland 29

30 Web of Knowledge Computer Science Department Ubiquitous Knowledge Processing Lab Dirk Volland 30

31 Mind Map Hull et al, 2008, Defrosting the Digital Library: Bibliographic Tools for the Next Generation Web Computer Science Department Ubiquitous Knowledge Processing Lab Dirk Volland 31

32 Typical Workflow Hull et al, 2008, Defrosting the Digital Library: Bibliographic Tools for the Next Generation Web Computer Science Department Ubiquitous Knowledge Processing Lab Dirk Volland 32

33 Mendeley Computer Science Department Ubiquitous Knowledge Processing Lab Dirk Volland 33

34 Glossary Bookmarklet is an applet, a small computer application, stored as the URL of a bookmark in a web browser or as a hyperlink on a web page. BSD license contains 3 major clauses, allowing unlimited redistribution for any purpose as long as its copyright notices and the license's disclaimers of warranty are maintained. The license also contains a clause restricting use of the names of contributors for endorsement of a derived work without specific permission. Digital Object Identifier (DOI) System is a managed system for persistent identification of content-related entities on digital networks. These entities may be content items (digital files, physical objects, abstract works), or any related entities in a content transaction (e.g. licenses, parties, etc.). PMID (PubMed Identifier or PubMed Unique Identifier[1]) is a unique number assigned to each PubMed citation of life sciences and biomedical scientific journal articles Computer Science Department Ubiquitous Knowledge Processing Lab Dirk Volland 34

35 Interesting Links ware Computer Science Department Ubiquitous Knowledge Processing Lab Dirk Volland 35