1. Abdul-Rahman A, Hailes S (2000) Supporting trust in virtual communities. In: Proceedings of the 33rd Hawaii international conference on system sciences, vol 6. IEEE Computer Society, Washington, DC, USA, pp 1–7.http://portal.acm.org/citation.cfm?id=820262.820322

   Google Scholar 

2. Ahn LV (2006) Games with a purpose. IEEE Comput Mag 39:92–94

   Article  Google Scholar 

3. Ahn LV, Dabbish L (2008) Designing games with a purpose. Commun ACM 51(8):58–67

   Google Scholar 

4. Albert R, Jeong H, Barabási AL (1999) Diameter of the World-Wide Web. Nature 401(9):130–131

   Google Scholar 

5. Arrow KJ (1974) The limits of organization (Fels lectures on public policy analysis). W. W. Norton & Company

6. Bashan A, Parshani R, Havlin S (2011) Percolation in networks composed of connectivity and dependency links. Phys Rev E 83(5):1–8. doi:10.1103/PhysRevE.83.051127

   Google Scholar 

7. Bober M, Brasnett P (2009) MPEG-7 visual signature tools. In: ICME’09: proceedings of the 2009 IEEE international conference on multimedia and expo. IEEE Press, Piscataway, NJ, USA, pp 1540–1543. ISBN 978-1-4244-4290-4

   Chapter  Google Scholar 

8. Brugion DA (1999) Photo fakery: the history and techniques of photographic deception and manipulation. Brasssyes Publishers, Dulles verginia

   Google Scholar 

9. Callaway DS, Newman MEJ, Strogatz SH, Watts DJ (2000) Network robustness and fragility: percolation on random graphs. Phys Rev Lett 85(25):5468–5471. doi:10.1103/PhysRevLett.85.5468

   Article  Google Scholar 

10. Cheng R, Vassileva J (2005) User motivation and persuasion strategy for peer-to-peer communities. In: Hawaii international conference on system sciences, vol 7, p 193a. doi:10.1109/HICSS.2005.653

11. Clary EG, Snyder M, Ridge RD, Copeland J, Stukas AA, Haugen J, Miene P (1998) Understanding and assessing the motivations of volunteers: a functional approach. JPSP 74:1516–1530

    Google Scholar 

12. Cofta P (2006) Distrust. In: Proceedings of the 8th international conference on electronic commerce, ICEC ’06. ACM, New York, NY, USA, pp 250–258. doi:10.1145/1151454.1151498

    Google Scholar 

13. Cohen R, Erez K, ben Avraham D, Havlin S (2001) Breakdown of the internet under intentional attack. Phys Rev Lett 86(16):3682–3685. doi:10.1103/PhysRevLett.86.3682

    Article  Google Scholar 

14. Deutsch M (1958) Trust and suspicion. JCR 2:265–279

    Google Scholar 

15. Douceur JR (2002) The Sybil attack. In: Revised papers from the first international workshop on peer-to-peer systems, IPTPS ’01. Springer, London, UK, pp 251–260

    Google Scholar 

16. Erickson T (2003) Designing visualizations of social activity: six claims. In: CHI ’03 extended abstracts on human factors in computing systems. ACM, New York, NY, USA, pp 846–847

    Chapter  Google Scholar 

17. Farid H (2009) A survey of image forgery detection. IEEE Sig Proc Mag 2(26):16–25.www.cs.dartmouth.edu/farid/publications/spm09.html

    Article  Google Scholar 

18. Finin T, Kagal L, Olmedilla D (eds) (2006) Proceedings of the WWW’06 workshop on models of trust for the Web (MTW’06), Edinburgh, Scotland, UK, 22 May 2006. CEUR Workshop Proceedings, vol 190. CEUR-WS.org

19. Fox A (1974) Beyond contract: work, power and trust relations. Faber

20. Gambetta D (1988) Can we trust trust?, chap. Trust: making and breaking cooperative relations. Blackwell, pp 213–237

21. Gans G (2008) An agent-based modeling-and simulation-methodology for strategic inter-organizational networks. PhD thesis, RWTH Aachen University

22. Gans G, Jarke M, Kethers S, Lakemeyer G, Ellrich L, Funken C, Meister M (2001) Towards (Dis)Trust-based simulations of agent networks. In: Proceedings of the 4th workshop on deception, fraud, and trust in agent societies, Montreal, pp 49–60.http://www-i5.informatik.rwth-aachen.de/~gans/tropos/dokumente/Agent01.pdf

23. Golbeck J (2009) Computing with social trust (human-computer interaction series), 1st edn. Springer

24. Golbeck J, Parsia B, Hendler J (2003) Trust networks on the semantic web. In: Proceedings of seventh international workshop on cooperative intelligent agents (CIA-03), pp 238–249.http://www.mindswap.org/papers/Trust.pdf

25. Golbeck JA (2005) Computing and applying trust in web-based social networks. PhD thesis, University of Maryland, College Park

26. Golle P, Leyton-Brown K, Mironov I (2001) Incentives for sharing in peer-to-peer networks. In: Proceedings of the 3rd ACM conference on electronic commerce, EC ’01. ACM, New York, NY, USA, pp 264–267

    Chapter  Google Scholar 

27. Grandison T, Sloman M (2000) A survey of trust in internet applications. IEEE Communications Surveys and Tutorials 3(4):2–16.http://pubs.doc.ic.ac.uk/TrustSurvey/

    Article  Google Scholar 

28. Gretarsson B, O’Donovan J, Bostandjiev S, Hall C, Höllerer T (2010) SmallWorlds: visualizing social recommendations. Computer Graphics Forum 29(3):833–842

    Article  Google Scholar 

29. Herlocker JL, Konstan JA, Riedl J (2000) Explaining collaborative filtering recommendations. In: Proceedings of CSCW00: ACM conference on computer supported cooperative work, pp 241–250

30. Hinduja S, Patchin JW (2008) Cyberbullying: an exploratory analysis of factors related to offending and victimization. Deviant Behav 29(2):129–156

    Article  Google Scholar 

31. Iwata M, Hori T, Shiozaki A, Ogihara A (2010) Digital watermarking method for tamper detection and recovery of JPEG images. In: International symposium on information theory and its applications (ISITA), pp 309–314

32. ISO/IEC/15938-3/Amd.3 (2009) Image signature tools

33. Jøsang A, Ismail R, Boyd C (2007) A survey of trust and reputation systems for online service provision. Decis Support Syst 43:618–644. doi:10.1016/j.dss.2005.05.019

    Article  Google Scholar 

34. Kamvar SD, Schlosser MT, Garcia-Molina H (2003) The eigentrust algorithm for reputation management in P2P networks. In: Proceedings of the 12th international conference on world wide web, WWW ’03. ACM, New York, NY, USA, pp 640–651. doi:10.1145/775152.775242

    Google Scholar 

35. Keith S, Martin ME (2005) Cyber-bullying: creating a culture of respect in a cyber world. RCY Journal 13(4):224–228

    Google Scholar 

36. Kim AJ (2000) Community building on the web: secret strategies for successful online communities. Peachpit Press

37. Klamma R, Spaniol M, Renzel D (2007) Community-aware semantic multimedia tagging—from folksonomies to commsonomies. In: Tochtermann K, Maurer H, Kappe F, Scharl A (eds) Proceedings of I-Media ’07. International conference on new media technology and semantic systems, Graz, Austria, 5–7 Sept 2007. J.UCS (Journal of Universal Computer Science) Proceedings, pp 163–171

38. Kleinberg JM (1999) Authoritative sources in a hyperlinked environment. J ACM 46:604–632. doi:10.1145/324133.324140

    Article MATH MathSciNet  Google Scholar 

39. Kuznetsov S (2006) Motivations of contributors to Wikipedia. ACM SIGCAS Comput Soc 36(2):1–7

    Article  Google Scholar 

40. Lee S, Shamma DA, Gooch B (2006) Detecting false captioning using common-sense reasoning. Digital Investigation 3(Supplement-1):65–70

    Article  Google Scholar 

41. Levien R (2003) Attack resistant trust metrics. PhD thesis, UC Berkeley, Berkeley, CA, USA

42. Levien R (2009) Attack-resistant trust metrics. In: Golbeck J (ed) Computing with social trust, human-computer interaction series. Springer, London Limited, pp 121–132

    Chapter  Google Scholar 

43. Lewis JD, Weigert AJ (1985) Trust as a social reality. Soci Force 63(4):967–985

    Article  Google Scholar 

44. Li XY, Gui XL (2009) A comprehensive and adaptive trust model for large-scale P2P networks. J Comput Sci Technol 24:868–882. doi:10.1007/s11390-009-9278-4

    Article  Google Scholar 

45. Lux M (2009) Caliph & Emir: MPEG-7 photo annotation and retrieval. In: ACM multimedia, pp 925–926

46. Lux M, Becker J, Krottmaier H (2003) Caliph & Emir: semantic annotation and retrieval in personal digital photo libraries. In: Proceedings of CAiSE ’03 forum at 15th conference on advanced information systems engineering, pp 85–89

47. Manjunath BS (2002) Introduction to MPEG-7, multimedia content description interface. Wiley

48. Manjunath BS, Ohm JR, Vasudevan VV, Yamada A (2001) Color and texture descriptors. IEEE Trans Circuits Systems Video Technol 11(6):703–715. doi:10.1109/76.927424

    Article  Google Scholar 

49. Manovich L (2001) The language of new media. The MIT Press

50. Marsh S, Briggs P (2009) Examining trust, forgiveness and regret as computational concepts. In: Golbeck J (ed) Computing with social trust, human-computer interaction series. Springer, London Limited, p 1

    Google Scholar 

51. Massa P, Bhattacharjee B (2004) Using trust in recommender systems: an experimental analysis. In: Proceedings of iTrust2004 international conference, pp 221–235

52. Mcknight DH, Chervany NL (1996) The meanings of trust. Tech. rep., University of Minnesota, USA

53. Milgram S (1967) The small world problem. Psychol Today 1(1):61–67

    MathSciNet  Google Scholar 

54. Mishra AK (1996) Trust in organizations: frontiers of theory and research, chap. Organizational responses to crisis: the centrality of trust. Sage Publications, Inc, pp 261–287

55. Mui L (2002) Computational models of trust and reputation: agents, evolutionary games, and social networks. PhD thesis, Massachusetts Institute of Technology

56. Mui L, Mojdeh Mohtashemi AH (2002) A computational model of trust and reputation. In: Proceedings of the 35th Hawaii international conference on system science (HICSS). IEEE Computer Society, Washington, DC, USA, pp 2431–439.http://portal.acm.org/citation.cfm?id=820745.821158

    Chapter  Google Scholar 

57. Nielsen J (2006) Participation inequality: encouraging more users to contribute.http://www.useit.com/alertbox/participation_inequality.html. Last access: June 2011

58. O’Donovan J, Smyth B, Gretarsson B, Bostandjiev S, Höllerer T (2008) PeerChooser: visual interactive recommendation. In: Proceedings of CHI08: twenty-sixth annual SIGCHI conference on human factors in computing systems. ACM, pp 1085–1088

59. Victor P, Cornelis C, Cock MD (2011) Trust networks for recommender systems. Atlantis Press

60. Rafelsberger W, Scharl A (2009) Games with a purpose for social networking platforms. In: Proceedings of the 20th ACM conference on hypertext and hypermedia, HT ’09. ACM, New York, NY, USA, pp 193–198

    Chapter  Google Scholar 

61. Rashed KAN, Klamma R (2010) Towards detecting faked images. In: Carreras A, Delgado J, Maronas X, Rodriguez V (eds) Proceedings of the 11th international workshop on interoperable social multimedia applications (WISMA10), Barcelona, Spain, 19–20 May 2010. CEUR Workshop Proceedings, vol 583

62. Renzel D, Klamma R, Spaniol M (2008) MobSOS–a testbed for mobile multimedia community services. In: Proceedings of the 2008 ninth international workshop on image analysis for multimedia interactive services. IEEE Computer Society, Washington, DC, USA, pp 139–142

    Chapter  Google Scholar 

63. Renzel D, Rashed KAN, Klamma R (2010) Collaborative fake media detection in a trust-aware real-time distribution network. In: Proceedings of the the 2nd workshop focusing on semantic multimedia database technologies SMDT2010, Saarbrucken, Germany. CEUR Workshop Proceedings, vol 680

64. Resnick P, Kuwabara K, Zeckhauser R, Friedman E (2000) Reputation systems. Commun ACM 43:45–48

    Article  Google Scholar 

65. Rey C, Dugelay JL (2002) A survey of watermarking algorithms for image authentication. EURASIP J Appl Signal Process 2002(1):613–621

    Article MATH  Google Scholar 

66. Richardson M, Agrawal R, Domingos P (2003) Trust management for the semantic web. In: Fensel D, Sycara K, Mylopoulos J (eds) The Semantic Web—ISWC 2003. Lecture notes in computer science, vol 2870. Springer Berlin/Heidelberg, pp 351–368

67. Saint-Andre P (2004) RFC 3920—Extensible Messaging and Presence Protocol (XMPP): core. Tech. rep., Jabber Software Foundation.http://www.ietf.org/rfc/rfc3920.txt

68. Saint-Andre P (2004) RFC 3921 extensible messaging and presence protocol (XMPP): instant messaging and presence. Tech. rep., Jabber Software Foundation.http://www.ietf.org/rfc/rfc3921.txt

69. Schein A, Popescul A, Ungar L, Pennock D (2002) Methods and metrics for cold-start recommendations. In: Proceedings of the 25th annual international ACM SIGIR conference on research and development in information retrieval (SIGIR 2002), pp 253–260

70. Schlebusch P (2009) XMPP based monitoring and analysis of mobile communities. Master’s thesis, RWTH Aachen University

71. Shneiderman B (2004) Designing for fun: how can we design user interfaces to be more fun? Interactions 11(5):48–50. doi:10.1145/1015530.1015552

    Article  Google Scholar 

72. Shneiderman B, Plaisant C (2004) Designing the user interface: strategies for effective human-computer interaction, 4th edn. Bosten, Addison Wesley

    Google Scholar 

73. Skopik F, Schall D, Dustdar S (2009) Start trusting strangers? Bootstrapping and prediction of trust. In: Proceedings of 10th international conference WISE, Poznan, Poland, 5–7 Oct 2009. Springer, pp 275–289

74. Spaniol M, Klamma R, Janßen H, Renzel D (2006) LAS: a lightweight application server for MPEG-7 services in community engines. In: Tochtermann K, Maurer H (eds) Proceedings of I-KNOW ’06, 6th international conference on knowledge management, Graz, Austria. J. UCS (Journal of Universal Computer Science) Proceedings. Springer, pp 592–599

75. Stølen K, Winsborough WH, Martinelli F, Massacci F (eds) (2006) Trust management. In: Proceedings of the 4th international conference, iTrust 2006, Pisa, Italy, 16–19 May 2006. Lecture Notes in Computer Science, vol 3986. Springer Berlin Heidelberg

76. Susi T, Johannesson M, Backlund P (2007) Serious games—an overview. Tech. rep., School of Humanities and Informatics University of Skvde, Sweden

77. Technical Standardization Committee on AV & IT Storage Systems and Equipmen (2002) Exchangeable image file format for digital still cameras: Exif Version 2.2. Tech. rep., Standard of Japan Electronics and Information Technology Industries Association

78. Turner R (2007) Your online community beta program: Metcalfe’s law and the cold start.http://www.websocialarchitecture.com/community/2007/09/. Last access: June 2011

79. Wang RY, Reddy MP, Kon HB (1995) Toward quality data: an attribute-based approach. Decision Support Syst 13:349–372.http://web.mit.edu/tdqm/www/tdqmpub/Toward%20Quality%20Data.pdf

    Article  Google Scholar 

80. Watts DJ, Strogatz SH (1998) Collective dynamics of small-world networks. Nature 393(6684):440–442

    Article  Google Scholar 

81. Webster A, Vassileva J (2006) Visualizing personal relations in online communities. In: Lecture notes in computer science adaptive hypermedia and adaptive webbased systems, pp 223–233. doi:10.1007/11768012_24

82. Wu B, Davison BD (2005) Identifying link farm spam pages. In: Special interest tracks and posters of the 14th international conference on world wide web. ACM, New York, NY, USA, pp 820–829

    Chapter  Google Scholar 

83. Yang Y, Sun YL, Kay S, Yang Q (2009) Defending online reputation systems against collaborative unfair raters through signal modeling and trust. In: Proceedings of the 2009 ACM symposium on applied computing, SAC ’09. ACM, New York, NY, USA, pp 1308–1315

    Chapter  Google Scholar 

84. Yaniv I, Kleinberger E (2000) Advice taking in decision making: egocentric discounting and reputation formation. OBHDP Journal 83(2):260– 281

    Google Scholar 

85. Zaihrayeu I, da Silva PP, McGuinness DL (2005) IWTrust: improving user trust in answers from the web. In: Proceedings of the 3rd international conference on trust management (iTrust2005), pp 384–392

86. Zajonc RB (1965) Social facilitation. Science 149:269–274

    Article  Google Scholar 

87. Ziegler CN, Golbeck J (2007) Investigating interactions of trust and interest similarity. Deci Supp Syst 43:460–475. doi:10.1016/j.dss.2006.11.003

    Article  Google Scholar 

88. Ziegler CN, Lausen G (2005) Propagation models for trust and distrust in social networks. Inf Syst Front 7:337–358. doi:10.1007/s10796-005-4807-3

    Article  Google Scholar 

89. Zyda M (2005) From visual simulation to virtual reality to games. IEEE Comput Mag 38:25–32

    Article  Google Scholar 

Download references