Kooperative Literaturverschlagwortung mit BibSonomy. Gerd Stumme Hertie-Lehrstuhl für Wissensverarbeitung Universität Kassel & Forschungszentrum L3S

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1 YouTube für Publikationen Kooperative Literaturverschlagwortung mit BibSonomy Gerd Stumme Hertie-Lehrstuhl für Wissensverarbeitung Universität Kassel & Forschungszentrum L3S

2 Agenda Kooperative Verschlagwortung BibSonomy Forschung rund um BibSonomy PUMA Akademisches Publikationsmanagement 2

3 Web 2.0 Web 2.0 describes a new usage and perception of the Web: Content is created and modified by the users themselves. From a technical perspective, itdenotesalso newmethodssuch as Web Services / APIs, Ajax (Asynchronous Javascript and XML) and subscription services like RSS. See 3

4 Types of Web 2.0 Applications Wikis (eg, Wikipedia) Blogs (eg, Blogspot) Picture and Video Sharing (eg, Youtube, Flickr) Social Bookmarking (eg, del.icio.us, BibSonomy) Social Online Networks (eg, Xing, Myspace, Facebook, StudiVZ) Virtual Worlds (eg, Second Life, Bailamo) Mikroblogs (eg, Twitter) Most of these applications support some way of (collaborative) tagging 4

5 Bookmarks for Videos Resource User Tags 5

6 Web Bookmarks User Resource Tags 6

7 Bookmarks for Audio Streams Tags Resource Users 7

8 Bookmarks for Photos Resource User Tags 8

9 Types of Tags content/topic of resource (nouns, proper nouns,...) category of resource opinion about resource (adjectives) ownership of resource (user names) self-reference, relation between resource and user (mystuff, myown, citingme) task organization (toread, tobuy) social coordination (for:andrea) [ see Golder & Huberman 06 ] 9

10 Agenda Kooperative Verschlagwortung BibSonomy Forschung rund um BibSonomy PUMA Akademisches Publikationsmanagement 10

11 Today, every researcher has his own publication management often badly organized BibSonomy: a personalized easy-to-use publication management system. over active users bookmarks publications Mio. publications from DBLP. We use the system for our daily scientific work, in European and other projects and for evaluating our algorithms. 11

12 Topic-specific collection of references (here: Social Network Analysis) 12

13 Export in over 30 formats, including BibTeX and Endnote 13

14 Generated publication list for my personal webpage 14

15 Generated publication lists for our research group 15

16 Generated publication list for EU project 16

17 E-Learning: Collection of references for and by participants of a seminar 17

18 E-Learning: Bookmarking in Moodle 18

19 Entry point for conference proceedings 19

20 Basket functionality for libraries 20

21 Back reference to the library 21

22 BibSonomy os Web page of research group, project, or conference central local os os EndNote Citavi Literature Management JabRef Zotero RTF Formatting os BibTeX Word Text Editing WinEdit Emacs os LaTeX os

23 Posting a new publication is easy: (Highlight reference) Click on Post Publication button 23

24 Posting a new bookmark/publication: Scraper fills form for you. Just add your favorite tags. Here are some recommendations. 24

25 That s it! 25

26 Posting also works on free text: Highlight reference Click on Post Publication button 26

27 Information Extraction (Mallet) fills form for you. 27

28 BibSonomy Scraping Service 28

29 Coverage of BibSonomy 29

30 Connectivity: GoogleSonomy 30

31 Connectivity: Zotero 31

32 Connectivity: Jabref-Plugin Also integrated: Citavi CiteSmart 32

33 Public Maven Repository Source code of some modules publicly available LGPL: common, model, restcommon, rest-client GPL: bibtex-parser, scraper, scrapingservice more than 60 screen scrapers for DLs are Open Source! 33

34 Agenda Kooperative Verschlagwortung BibSonomy Forschung rund um BibSonomy PUMA Akademisches Publikationsmanagement 34 Das FG Wissensverarbeitung entwickelt Data-Mining- und Information-Retrieval-Algorithmen, insbesondere für das Web 2.0.

35 Projects TAGora Semiotic Dynamics in Online Social Communities (EU 6FP STREP) Emergent Semantics in Online Resource Sharing Systems Social Search Bringing the Social Component to the Web (Microsoft Research Grant) Combining Web Search with Folksonomies Info 2.0 Informationelle Selbstbestimmung im Web 2.0 (DFG) Datenschutzrecht, Recommender, Spam PUMA Akademisches Publikationsmanagement (DFG) Combining BibSonomy with Open Access Repository Nepomuk Social Semantic Desktop (EU 6FP IP) Knowledge Sharing on Desktop Level, Semantic Wiki, Social Network Analysis KD ubiq A Blueprint for Ubiquitous Knowledge Discovery Systems (EU 6FP CA) paradigm shift from standalone to process integrated, distributed and autonomous analysis 35

36 Chaos and Order in Social Tagging Systems The vocubulary of tags is much more chaotic than, e.g., library catalogues. How to support users by bringing order to the Web 2.0? 36

37 Folksonomies Folksonomies allow users to assign tags to resources. A folksonomy is a tuple F := (U, T, R, Y, ) where U, T, and R are finite sets, whose elements are called users, tags and resources, Y U T R, called set of tag assignments, U T T is a user-specific sub-tag/super-tag relation. 37

38 Google-Like Ranking FolkRank: our adaptation of PageRank to Folksonomies. Hits are ordered by relevance rather than by date. 38

39 Personalised Tag Recommendations Personalised Tag Recommendations Robert Jäschke and Leandro Marinho and Andreas Hotho and Lars Schmidt-Thieme and Gerd Stumme. Tag Recommendations in Social Bookmarking Systems. In Enrico Giunchiglia, editor(s), AI Communications, (21)4: ,IOS Press,Amsterdam,

40 Tag Recommendations Evaluation on Del.icio.us Data 40

41 ECML PKDD Discovery Challenge 2009 Ongoing! Tasks: Predict the tags the user will assign to a resource Training data: Snapshot of BibSonomy until January 1st 2009 Evaluation of recommenders in the live system: 41

42 Spam BibSonomy after lunch... 42

43 43

44 BibSonomy active user accounts over time 44

45 Cleaning-Up BibSonomy admins and developers flag spammers 45

46 Cleaning-Up Cleaning-Up is supported by machine learning algorithms 46

47 Semantic Grounding of Tag Similarity Measures Wordnet Hierarchy Folksonomy computers Original tag: java programming Most similar tag: design_patterns languages map Freq, folkrank: programming java python grounded similarity Cosine: python 47

48 Similar tags live on 48

49 Ontology Learning Appendix: Music Genre Taxonomy learned from last.fm Music Genre Taxonomy learned from last.fm 49

50 Agenda Kooperative Verschlagwortung BibSonomy Forschung rund um BibSonomy PUMA Akademisches Publikationsmanagement 50 DFG-Projekt der Uni-Bibliothek Kassel und des FG Wissensverarbeitung Laufzeit: August 2009 Juli 2011

51 PUMA Motivation Open-Access-Gedanke wird von vielen Wissenschaftlern prinzipiell unterstützt. Konkrete Einstellung von Inhalten in Institutional Repositories scheitert oft daran, dass aus Sicht der Autoren dem Aufwand der Dateneingabe kein unmittelbarer Nutzen gegenübersteht. In PUMA wird daher die IR-Eingabe in die Arbeitsabläufe des Wissenschaftlers integriert. 51

52 PUMA Ansatz PUMA beliefert in einem Schritt: Publikationsliste auf der eigenen Homepage, Publikationsliste des Instituts, BibSonomy, universitärer Forschungsbericht, Institutional Repository. Anzeige von Metadaten bei Eingabe: Sherpa-Romeo-Liste OPAC Bibliotheksverbünde kooperative Literaturverwaltungssysteme. 52

53 PUMA Architektur 53

54 PUMA Architektur Kooperative Publikationsverwaltung Open Access Repositories Datenaustausch mit externen PUMA-Systemen Homepage Wissenschaftler (CV) Forschungsbericht REST-API Web-Portal DAI Integration Exportschnittstelle Externe Quellen (OPAC Romeo/Sherpa) Logikinterface Datenbankschnittstelle DAI-API Datenbank PUMA 54

55 PUMA Implementierung PUMA wird exemplarisch entwickelt für die Kombination DSpace (Open Access Repository-Plattform) PICA (Online-Bibliothekskatalog) BibSonomy. PUMA wird offen sein für die Anpassung out of the box an andere gängige IR-Software, Hochschulforschungsberichte und Hochschulbibliografien. Die Ergebnisse werden anderen Bibliotheken als Open-Source- Software zur Verfügung gestellt. 55

56 Agenda Kooperative Verschlagwortung BibSonomy Forschung rund um BibSonomy PUMA Akademisches Publikationsmanagement 56