Abbasi R.2011. Query expansion in folksonomies. In Proceedings of the 5th International Conference on Semantic and Digital Media Technologies (SAMT10), 1–16.

Abel F., Henze N. & Krause D.2008. Ranking in folksonomy systems: can context help? In Proceedings of the 17th ACM Conference on Information and Knowledge Management, 1429–1430. ACM.

Abel F., Kawase R. & Krause D.2010. Leveraging multi-faceted tagging to improve search in folksonomy systems. In Proceedings of the 21st ACM Conference on Hypertext and Hypermedia, 299–300.

Al-Khalifa H. & Davis H.2006. Measuring the semantic value of folksonomies. Innovations in Information Technology, 2006, 1–5. IEEE. http://ieeexplore.ieee.org/lpdocs/epic03/wrapper.htm?arnumber=4085397.

Al-Khalifa H. & Davis H.2007. Towards better understanding of folksonomic patterns. In Proceedings of the 18th Conference on Hypertext and Hypermedia, 163–166. ACM Press. http://portal.acm.org/citation.cfm?doid=1286240.1286288.

Asch S. & Solomon E.1956. Studies of independence and conformity: a minority of one against a unanimous majority. Psychological Monographs: General and Applied70(9), 1–70.

Astrain J. A., Echarte F., Crdoba A. & Villadangos J.2009. A tag clustering method to deal with syntactic variations on collaborative social networks. In ICWE 2009, LNCS 5648, 434–441. Springer-Verlag Berlin Heidelberg. http://link.springer.com/chapter/10.1007/978-3-642-02818-2_35.

Bartolini I., Patella M. & Romani C.2013. SHIATSU: tagging and retrieving videos without worries. Multimedia Tools and Applications63(2), 357–385.

Baxter M.2009. Reflections from the river—singular plural. http://www.reflectionsfromtheriver.com/tag/singular-plural/.

Benz D. & Christian K.2011. One tag to bind them all: measuring term abstractness in social metadata. In ESWC 2011, Part II, LNCS 6644, 360–374. Springer-Verlag Berlin Heidelberg.

Catarino M. & Baptista A.2010. Relating folksonomies with Dublin Core. International Journal of Metadata, Semantics and Ontologies5(4), 285–295.

Cattuto C., Baldassarri A., Servedio V. D. P. & Loreto V.2007. Vocabulary growth in collaborative tagging systems. CoRR abs/0704.3316. http://arxiv.org/abs/0704.3316.

Cena F., Carmagnola F. & Cortassa O.2008. Tag interoperability in cultural web-based applications. In Proceedings of the 19th ACM Conference on Hypertext and Hypermedia (HT08), 221–222. http://dl.acm.org/citation.cfm?id=1379135.

Chen J., Feng S. & Liu J.2014. Topic sense induction from social tags based on non-negative matrix factorization. Information Sciences280, 16–25.

Choi Y. & Street E. D.2009. Bringing a more accurate user’s perspective into web navigation: facet analysis of folksonomy tags. iConference 2009, University of North Carolina at Chapel Hill.

Chow K. O., Fan K. Y. K., Chan A. Y. K. & Wong G. T. L.2009. Content-based tag generation for the grouping of tags. In International Conference on Mobile, Hybrid, and On-line Learning, 7–12. http://www.computer.org/csdl/proceedings/elml/2009/3528/00/3528a007-abs.html.

Common tag2014. Common tag. http://www.commontag.org/home.

Cui B., Han Q., Yao J., Zhang C. & Zhou Y.2011. Modeling user expertise in folksonomies by fusing multi-type features. In Proceedings of the 16th International Conference on Database Systems for Advanced Applications, 53–67.

Daglas S., Kakali C. & Kakavoulis D.2012. A methodology for folksonomy evaluation. In Theory and Practice of Digital Libraries (TPDL 2012), LNCS 7489, 247–259. Springer-Verlag Berlin Heidelberg. http://link.springer.com/chapter/10.1007/978-3-642-33290-6_27.

Damme C. V., Christiaens S. & Trog D.2008. Methodological approach to determine appropriately annotated resources in narrow folksonomies. In On the Move to Meaningful Internet Systems: OTM 2008 Workshops, Meersman, R., Tari, Z. & Herrero, P. (eds). Springer-Verlag Berlin Heidelberg, 230–237.

Damme V. D., Hepp M. & Coenen T.2008. Quality metrics for tags of broad folksonomies. In Proceedings of International Conference on Semantic Systems (I-semantics 08), Journal of Universal Computer Science (J.UCS), 118–125.

Dang V. & Croft W. B.2010. Query reformulation using anchor text. In Proceedings of the 3rd ACM International Conference on Web Search and Data Mining, 41–50.

Dattolo A., Ferrara F. & Tasso C.2010. The role of tags for recommendation: a survey. In 3rd International Conference on Human System Interaction, 548–555. IEEE. http://ieeexplore.ieee.org/lpdocs/epic03/wrapper.htm?arnumber=5514515.

Dattolo A. & Pitassi E.2011. Visualizing and managing folksonomies. In Proceedings of the Workshop on Semantic Adaptive Social Web (SASWeb 2011), CEUR Workshop Proceedings730, 6–14. http://www.academia.edu/2971660/Visualizing_and_Managing_Folksonomies.

Dellschaft K. & Szomszor M.2009. Sense aware searching and exploration with MyTag. In The 8th International Semantic Web Conference (ISWC 2009), 6–7.

Diaz J. & Tory M.2009. An exploratory study of tag-based visual interfaces for searching folksonomies. In Proceedings of the 23rd British HCI Group Annual Conference on People and Computers: Celebrating People and Technology, 410–417.

Ding Y., Jacob E. & Fried M.2010. Upper tag ontology for integrating social tagging data. Journal of the American Society for Information Science and Technology61(3), 505–521.

Donghee Y. & Yongmoo S.2010. User-categorized tags to build a structured folksonomy. In Second International Conference on Communication Software and Networks (ICCSN’10), 160–164.

Dotsika F.2009. Uniting formal and informal descriptive power: reconciling ontologies with folksonomies. International Journal of Information Management29(5), 407–415.

Echarte F., Astrain J., Crdoba J. & Villadangos J.2009. Improving folksonomies quality by syntactic tag variations grouping. In Proceedings of the 2009 ACM Symposium on Applied Computing, 1226–1230. http://dl.acm.org/citation.cfm?id=1529559&dl=ACM&coll=DL&CFID=179648186&CFTOKEN=60450037.

Farhan H. R. & Sanderson M.2008. Measuring the quality of an E-Government folksonomy. http://www.seg.rmit.edu.au/mark/publications/my_papers/E-government_Folksonomy.pdf.

Floeck F., Putzke J., Steinfels S., Fischbach K. & Schoder D.2011. Imitation and quality of tags in social bookmarking systems-collective intelligence leading to folksonomies. In On Collective Intelligence: Advances in Intelligent and Soft Computing, Bastiaens, T. J., Baumöl, U. & Krämer, B. J. (eds). Springer Berlin Heidelberg, 76, 75–91. http://link.springer.com/chapter/10.1007/978-3-642-14481-3_7.

Folksonomy Management2014. Folksonomy Management. http://www.if4it.com/SYNTHESIZED/DISCIPLINES/Folksonomy_Management_Home_Page.html#INTRODUCTION.

Franz B. & Richardson J.2007. http://search.cpan.org/snowhare/Lingua-Stem-0.82/lib/Lingua/Stem.pod.

Ga D., Zouaq A., Torniai C., Jovanovi J. & Hatala M.2011. An approach to folksonomy-based ontology maintenance for learning environments. IEEE Transactions on Learning Technologies4(4), 301–314.

Geldart J. & Cummins S.2010. The automatic integration of folksonomies with taxonomies using non-axiomatic logic. In Proceedings of Information System Development, 365–372. Springer Science+Business Media.

Gemmell J., Schimoler T., Ramezani M. & Mobasher B.2009. Adapting K-nearest neighbor for tag recommendation in folksonomies. In Proceedings of the 7th Worshop on Intelligent Techniques for Web Personalization and 21th International Joint Conference on Recommender Systems in Conjunction, Artificial Intelligence, Pasadena, California, USA, 51–62.

Gemmell J. & Shepitsen A.2008. Personalization in folksonomies based on tag clustering. In Proceedings of the 6th Workshop on Intelligent Techniques for Web Personalization and Recommender Systems, 37–48. http://www.aaai.org/Papers/Workshops/2008/WS-08-06/WS08-06-005.pdf.

Gendarmi D., Lanubile F., Informatica D. & Orabona V. E.2006. Community-driven ontology evolution based on folksonomies. In OTM Workshops 2006, LNCS 4277, 181–188. Springer-Verlag Berlin Heidelberg.

GNU Aspell2011. GNU Aspell. http://aspell.sourceforge.net/.

Golder S. & Huberman B.2006. Usage patterns of collaborative tagging systems. Journal of Information Science32(2), 198–208.

Golov E., Weller K. & Peters I.2008. TagCare: a personal portable tag repository. In International Semantic Web Conference, 2–3. http://www.phil.hhu.de/fileadmin/Redaktion/Institute/Informationswissenschaft/1227004317iswc2008_t.pdf.

Gupta M., Li R., Yin Z. & Han J.2010. Survey on social tagging techniques. SIGKDD Explorations12(1), 58–72.

Guy M. & Tonkin E.2006. Folksonomies tidying up tags. D-Lib Magazine, 12(1), Janauary 2006.

Harvey M., Baillie M., Ruthven I. & Elsweiler D.2009. Folksonomic tag clouds as an aid to content indexing. CoRR abs/0911.4178. http://arxiv.org/ftp/arxiv/papers/0911/0911.4178.pdf.

Helic D., Krner C. & Granitzer M.2012. Navigational efficiency of broad vs. narrow folksonomies. In Proceedings of the 23rd ACM Conference on Hypertext and Social Media, 63–72. ACM. http://dl.acm.org/citation.cfm?id=2310008.

Helic D., Lerman K., Rey M., Strohmaier M. & Trattner C.2011. Pragmatic evaluation of folksonomies. In Proceedings of the 20th International Conference on World Wide Web, 417–426. ACM.

Hepp M., Bachlechner D. & Siorpaes K.2006. OntoWiki: community-driven ontology engineering and ontology usage based on Wikis. In Proceedings of the 2006 International Symposium on Wikis, 143–144. http://dl.acm.org/citation.cfm?id=1149487.

Herwig J.2008. Folksonomy the semantic puzzle. http://blog.semantic-web.at/tag/folksonomy/.

Hong L., Chi E. & Budiu R.2008. SparTag.us: a low cost tagging system for foraging of web content. In Proceedings of the Working Conference on Advanced Visual Interfaces (AVI08), 65–72. ACM. http://dl.acm.org/citation.cfm?id=1385582.

Hotho A., Jschke R., Schmitz C. & Stumme G.2006. FolkRank: a ranking algorithm for folksonomies. In FGIR, 2–5. http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.94.5271&rep=rep1&type=pdf .

Hsueh P., Melville P. & Sindhwani V.2009. Data quality from crowdsourcing: a study of annotation selection criteria. In Proceedings of the NAACL HLT 2009 Workshop on Active Learning for Natural Language Processing, 27–35. http://dl.acm.org/citation.cfm?id=1564137.

Jeong J. W., Hong H. K. & Lee D. H.2011. i-TagRanker: an efficient tag ranking system for image sharing and retrieval using the semantic relationships between tags. Multimedia Tools and Applications62(2), 451–478.

Jin S., Lin H. & Su S.2009. Query expansion based on folksonomy tag co-occurrence analysis. In Proceedings of IEEE International Conference on Granular Computing (GRC 09), 300–305.

jSongMiner2014. jSongMiner. http://jmir.sourceforge.net/jSongMiner.html.

Kang J. & Lerman K.2011. Leveraging user diversity to harvest knowledge on the social web. Privacy, Security, Risk and Trust (PASSAT) and 2011 IEEE 3rd International Conference on Social Computing (SocialCom), 215–222. http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=6113117.

Kawase R. & Herder E.2011. Classification of user interest patterns using a virtual folksonomy. In Proceeding of the 11th Annual International ACM/IEEE Joint Conference on Digital libraries (JCDL 11), 105–108. http://portal.acm.org/citation.cfm?doid=1998076.1998095.

Kiu C. & Tsui E.2008. TaxoFolk: a hybrid taxonomy—folksonomy classification for enhanced knowledge navigation. Knowledge Management Research & Practice8(1), 24–32.

Knerr T.2001. Tagging ontology towards a common ontology for folksonomies, 3–8. http://tagont.googlecode.com/files/TagOntPaper.pdf.

Körner C., Kern R. & Strohmaier M.2010. Of categorizers and describers: an evaluation of quantitative measures for tagging motivation. In 21st ACM SIGWEB Conference on Hypertext and Hypermedia (HT2010), 157–166. ACM.

Krestel R. & Chen L.2008. The art of tagging: measuring the quality of tags. In The Semantic Web, 3rd Asian Semantic Web Conference (ASWC 2008), LNCS 5367, 257–271. Springer-Verlag Berlin Heidelberg.

Kwak H., Shin H., Yoon J. & Moon S.2009. Connecting users with similar interests across multiple web services. In ICWSM, 1–4. http://www.aaai.org/ocs/index.php/ICWSM/09/paper/viewPDFInterstitial/189/506.

Laniado D., Eynard D. & Colombetti M.2007. Using WordNet to turn a folksonomy into a hierarchy of concepts. In Semantic Web Application and Perspectives—Fourth Italian Semantic Web Workshop, 192–201. http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.94.4393&rep=rep1&type=pdf#page=200.

Layne S. S.1994. Some issues in the indexing of images. Journal of the American Society for Information Science45(8), 583–588.

Lee S., Neve W. D. & Ro Y. M.2010. Tag refinement in an image folksonomy using visual similarity and tag co-occurrence statistics. Signal Processing: Image Communication25(10), 761–773.

Lee S., Neve W. D. & Ro Y. M.2012. Towards data-driven estimation of image tag relevance using visually similar and dissimilar folksonomy images. In Proceedings of the 2012 Workshop on Socially-Aware Multimedia (SAM 2012); held in Conjunction with ACM Multimedia 2012, 3–8. http://www.citeulike.org/user/wmdeneve/article/11007815.

Lee S. E. & Han S. S.2007. Qtag: introducing the qualitative tagging system. In Proceedings of the 18th Conference on Hypertext and Hypermedia (HT 07), 35–36. http://dl.acm.org/citation.cfm?id=1286250&dl=ACM&coll=DL&CFID=179648186&CFTOKEN=60450037.

Li J., Ma Q., Asano Y. & Yoshikawa M.2012. Improving folksonomy tag quality. In WAIM 2012 Workshops, LNCS 7419, 264–275. Springer-Verlag Berlin Heidelberg.

Li X., Snoek C. G. M. & Worring M.2009. Learning social tag relevance by neighbor voting. IEEE Transactions on Multimedia11(7), 1310–1322.

Limpens F., Gandon F. & Buffa M.2008. Bridging ontologies and folksonomies to leverage knowledge sharing on the social web: a brief survey. In 23rd IEEE/ACM International Conference on Automated Software Engineering-Workshops (ASE), 13–18. IEEE. http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=4686305.

Lipczak M.2008. Tag recommendation for folksonomies oriented towards individual users. ECML PKDD Discovery Challenge84. http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.183.2330&rep=rep1&type=pdf#page=92.

Liu D., Zhang M. W., Yang Y. & Hong Jiang X. S. H.2009. Tag quality improvement for social images. In International Conference on Multimedia and Expo (ICME), 350–353. IEEE.

Liu D. & Zhang X. H. H.2011. Content-based tag processing for Internet social images. Multimedia Tools and Applications51(2), 723–738.

Magnuson L.2008. Folksonomies: meaning, discourse, and information retrieval, 1–15. http://www.cais-acsi.ca/proceedings/2009/Magnuson_2009.pdf.

Markines B., Cattuto C. & Menczer F.2009. Social spam detection. In Proceedings of the 5th International Workshop on Adversarial Information Retrieval on the Web (AIRWeb09), 41. ACM Press. http://portal.acm.org/citation.cfm?doid=1531914.1531924.

Matthes F., Neubert C. & Steinhoff A.2012. Structuring folksonomies with implicit tag relations. In Proceedings of the 23rd ACM Conference on Hypertext and Social Media, 315–316. http://dl.acm.org/citation.cfm?id=2310051&dl=ACM&coll=DL&CFID=179648186&CFTOKEN=60450037.

Maurer B.Mcmillen C., Abraham D. & Blum M.2008. reCAPTCHA: human-based character recognition via web security measures. Science321(5895), 1465–1468.

McCarthy L. & Conners D.2006. Folksonomies in action. http://folksonomiesinaction.blogspot.com/.

Mejias U.2005. Tag literacy. http://blog.ulisesmejias.com/2005/04/26/tag-literacy/.

Morrison P. J.2008. Tagging and searching: search retrieval effectiveness of folksonomies on the World Wide Web. Information Processing & Management44(4), 1562–1579.

Muller M. J.2007. Comparing tagging vocabularies among four enterprise tag-based services. In Proceedings of the 2007 International ACM Conference on Supporting Group Work, 341–350. ACM Press. http://portal.acm.org/citation.cfm?doid=1316624.1316676.

Nandipati A.2011. Assessment of metadata associated with geotag pictures. Masters thesis, University of Muenster.

Nauerz A., Bakalov F., Welsch M. & Birgitta K.2009. New tagging paradigms for content recommendation in Web 2. 0 portals. In Workshop on Adaptation and Personalization for Web 2.0, 143–147.

Noh T., Lee J., Park S., Lee S. & Kim K.2010. Tag quality feedback: a framework for quantitative and qualitative feedback on tags of social web. In PRICAI 2010, LNAI 6230, 637–642. Springer-Verlag Berlin Heidelberg.

Noll MG & Gibbins N.2009. Telling experts from spammers: expertise ranking in folksonomies. In SIGIR09, 19–23. ACM.

Noy N.2008. Community-based ontology development, alignment, and evaluation. http://kmi.open.ac.uk/events/sssw08/presentations/Noy-SSSW_2008_Noy.pdf.

Pan J., Taylor S. & Thomas E.2009. Reducing ambiguity in tagging systems with folksonomy search expansion. In Proceedings of the 6th European Conference on the Semantic Web: Research and Applications, 669–683. http://link.springer.com/chapter/10.1007/978-3-642-02121-3_49.

Papadopoulos S., Vakali A. & Kompatsiaris Y.2011. Community detection in collaborative tagging systems. Community-Built Databases, 107–131. Springer Berlin Heidelberg. http://link.springer.com/chapter/10.1007/978-3-642-19047-6_5.

Pera M. S. & Lund W.2009. Folksonomies and similarity matching. Journal of the American Society for Information Science and Technology60(7), 1392–1406.

Perry S.2009. Jumper 2.0. http://theology.asin.web.id/IT/tulisan-770/Jumper-2.0-Enterprise_474_theology-asin.html.

Peters I.2009. Folksonomies: Indexing and Retrieval in Web 2.0, 1. Walter de Gruyter.

Peters I. & Weller K.2008. Tag gardening for folksonomy enrichment and maintenance. Webology5(3), 1–18.

Poorgholami M., Jalali M., Rehan S. & Asgari T.2013. Spam detection in social bookmarking websites. IEEE 4th International Conference on Software Engineering and Service Science, 56–59. http://ieeexplore.ieee.org/lpdocs/epic03/wrapper.htm?arnumber=6615254.

Quattrone G., Capra L., De Meo P., Ferrara E. & Ursino D.2011. Effective retrieval of resources in folksonomies using a new tag similarity measure. In Proceedings of the 20th ACM International Conference on Information and Knowledge Management, 545–550. http://arxiv.org/abs/1207.6033.

Rásto K., Tvaroek M. & Bielikova M.2013. Web search results exploration via cluster-based views and zoom-based navigation. Journal of Universal Computer Science19(15), 2320–2346.

Ravendran R.2012. Usability evaluation of a tag-based interface. Journal of Usability Studies7(4), 143–160.

Rodenhausen T., Anjorin M., Garcia R. D., Rensing C., Steinmetz R. & Dominguez R.2012. Ranking resources in folksonomies by exploiting semantic information categories and subject descriptors. In Proceedings of the 12th International Conference on Knowledge Management and Knowledge Technologies, 11. ACM.

Rossi L. C. D.2006. Folksonomies: tags strengths, weaknesses and how to make them work. http://www.masternewmedia.org/news/2006/02/01/folksonomies_tags_strengths_weaknesses_and.htm.

Saab D. J.2011. An emergent culture model for discerning tag semantics in folksonomies. In Proceedings of the 2011 iConference (iConference11), 552–560. http://portal.acm.org/citation.cfm?doid=1940761.1940837.

Sen S.Harper F. M., Lapitz A. & Riedlet J.2007. The quest for quality tags. In Proceedings of the 2007 International ACM Conference on Supporting Group Work, 361–370. ACM. http://www.grouplens.org/system/files/group07-sen.pdf.

Sen S., Lam S. & Rashid A.2006. Tagging, communities, vocabulary, evolution. In Proceedings of the 2006 20th Anniversary Conference on Computer Supported Cooperative Work, 181–190. ACM Press. http://portal.acm.org/citation.cfm?doid=1180875.1180904.

Sen S., Vig J. & Riedl J.2009. Tagommenders: connecting users to items through tags. In WWW 2009 MADRID! Track: Social Networks and Web 2.0/Session: Recommender Systems, 1–10.

Shvaiko P. & Euzenat J.2008. Ten challenges for ontology matching. In On the Move to Meaningful Internet Systems: (OTM 2008), Meersman, R., Tari, Z. & Herrero, P. (eds). Springer Berlin Heidelberg, 1164–1182.

Sigurbjrnsson B. & van Zwol R.2008. Flickr tag recommendation based on collective knowledge. In Proceeding of the 17th International Conference on World Wide Web (WWW08), 327–336. ACM Press. http://portal.acm.org/citation.cfm?doid=1367497.1367542.

Solskinnsbakk G., Atle J., Haderlein V., Myrseth P. & Cerrato O.2012. Quality of hierarchies in ontologies and folksonomies. Data and Knowledge Engineering74, 13–25.

Solskinnsbakk G. & Gulla J.2011. Semantic annotation from social data. In 4th International Workshop Social Data on the Web (SDoW 2011). https://files.ifi.uzh.ch/ddis/iswc_archive/iswc/pps/web/iswc2011.semanticweb.org/fileadmin/iswc/Papers/Workshops/SDoW/sdow2011_paper_3.pdf.

Solskinnsbakk G. & Gulla J. A.2001. Mining tag similarity in folksonomies. In Proceedings of 3rd International Workshop on Search and Mining User-Generated Contents, 53–60.

Sood S. C., Owsley S. H., Hammond K. J. & Birnbaum L.2007. TagAssist: automatic tag suggestion for blog posts. In Proceedings of the International Conference on Weblogs and Social Media (ICWSM 2007).

Sordo M.Gouyon F., Sarmento L. & Celmaet O.2013. Inferring semantic facets of a music folksonomy with Wikipedia. Journal of New Music Research42(4), 346–363.

Spiteri L.2011. Faceted navigation of social tagging applications. https://www.academia.edu/2374931/Faceted_navigation_of_social_tagging_applications.

Spiteri L. F.2007a. Structure and form of folksonomy tags: the road to the public library catalogue. Webology4(2), article no. 41.

Spiteri L. F.2007b. The structure and form of folksonomy tags: the road to the public library catalog. Information Technology and Libraries26(3), 13–25.

Stock W. G.2007. Folksonomies and science communication. Information Services & Use27, 97–103.

Strohmaier M., Christian K. & Kern R.2009. Why do users tag? Detecting users motivation for tagging in social tagging systems. In Fourth International AAAI Conference on Weblogs and Social Media, 339–342.

Strohmaier M., Helic D., Benz D., Orner C. K. & Kern R.2012a. Evaluation of folksonomy induction algorithms. ACM Transactions on Intelligent Systems and Technology (TIST)3(4), 74.

Strohmaier M., Körner C. & Kern R.2012b. Understanding why users tag: a survey of tagging motivation literature and results from an empirical study. Web Semantics (Online)17(C), 1–11.

Sturtz D. N.2004. Communal categorization: the folksonomy. INFO622 Content Representation. http://davidsturtz.com/drexel/622/communal-categorization-the-folksonomy.html.

Syn S. Y. & Spring M. B.2009. Tags as keywords comparison of the relative quality of tags and keywords. Proceedings of the American Society for Information Science and Technology46(1), 1–19.

Szomszor M., Alani H., Cantador I., Hara K. O. & Shadbolt N.2008. Semantic modelling of user interests based on cross-folksonomy analysis. In ISWC 2008, LNCS 5318, 632–648. Springer-Verlag Berlin Heidelberg.

Tang R., Zuo J., Xu K., Zheng J. & Wang Y.2010. An intelligent semantic-based tag cleaner for folksonomies. In 2010 International Conference on Intelligent Computing and Integrated Systems (ICISS), 773–776. IEEE.

Taylor A.2004. The Organization of Information, 2nd edition. Libraries Unlimited.

Trant J.2006. Social classification and folksonomy in art museums: early data from the steve.museum tagger prototype. A Paper for the ASIST-CR Social Classification Workshop, 1–27. http://www.archimuse.com/papers/asist-CR-steve-0611.pdf.

Tudorache T., Noy N., Tu S. & Musen M.2008. Supporting collaborative ontology development in Protg. The Semantic Web-ISWC 2008, 17–32. http://link.springer.com/chapter/10.1007/978-3-540-88564-1_2.

Vallet D., Cantador I. & Jose J. M.2010. Personalizing web search with folksonomy-based user and document profiles. In ECIR 2010, LNCS 5993, 420–431. Springer-Verlag Berlin Heidelberg.

Vanderlei T. & Durão F.2007. A cooperative classification mechanism for search and retrieval software components. In Proceedings of the 2007 ACM Symposium on Applied Computing (SAC07), 866–871. ACM Press. http://portal.acm.org/citation.cfm?doid=1244002.1244192.

Veres C.2006. Concept modeling by the masses: folksonomy structure and interoperability. In Conceptual Modeling - ER 2006, LNCS 4215, 325–338. Springer-Verlag Berlin Heidelberg.

Waltl B.2012. Partitioning instead of clustering: an alternative approach for mining structured content in folksonomies. http://www.matthes.informatik.tu-muenchen.de/file/b14ej8z7mffa/sebis-Public-Website/-/Guided-Research-Bernhard-Waltl/Guided-Research-Bernhard-Waltl.pdf.

Wang J., Hua X. S. & Li S.2009. Tag refinement by regularized LDA. In Proceedings of the 17th ACM International Conference on Multimedia, 573–576. http://dl.acm.org/citation.cfm?id=1631359.

Wang M., Ni B., Hua X. S. & Chua T. S.2012. Assistive tagging. ACM Computing Surveys44(4), 1–24.

Warden P.2007. Can you automatically generate good tags. http://petewarden.com/2007/12/03/can-you-automat/.

Wei X.Peng F. & Dumoulin B.2008. Analyzing web text association to disambiguate abbreviation in queries. In Proceedings of the 31st Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, 751–752. ACM. http://dl.acm.org/citation.cfm?doid=1390334.1390485.

Wetzker R. & Bauckhage C.2010. I tag, you tag: translating tags for advanced user models. In Proceedings of the 3rd ACM International Conference on Web Search and Data Mining, 71–80. ACM.

Whatever S. A.2009. Knowledge plaza. http://theology.asin.web.id/IT/tulisan-770/Knowledge-Plaza_2639_theology-asin.html .

WordNet2010. WordNet. http://wordnet.princeton.edu/.

Xia Z., Peng J., Feng X. & Fan J.2013. Automatic abstract tag detection for social image tag refinement and enrichment. Journal of Signal Processing Systems74(1), 5–18.

Xu G., Zong Y., Jin P., Pan R. & Wu Z.2013. KIPTC: a kernel information propagation tag clustering algorithm. Journal of Intelligent Information Systems45(1), 1–18. http://link.springer.com/10.1007/s10844-013-0262-7.

Yang H. & Lee C.2011. Identifying spam tags by mining tag semantics. In 3rd International Conference on Data Mining and Intelligent Information Technology Applications (ICMiA), 263–268. http://ir.nuk.edu.tw:8080/ir/bitstream/310360000Q/11836/2/icmia2011.pdf.

Yazdani S.Ivanow I., Analoui M., Berangi R. & Ebrahimi T.2012. Spam fighting in social tagging systems. In Sociinfo 2012, LNCS 7710, 448–461. Springer-Verlag Berlin Heidelberg.

Yoo D., Choi K., Suh Y. & Kim G.2013. Building and evaluating a collaboratively built structured folksonomy. Journal of Information Science39(5), 593–607.

Yoo D. & Suh Y.2010. User-categorized tags to build a structured folksonomy. In Second International Conference on Communication Software and Networks (ICCSN10), 160–164. IEEE.

Zanardi V. & Capra L.2008. Social ranking: uncovering relevant content using tag-based recommender systems. In Proceedings of the 2008 ACM Conference on Recommender Systems, 51–58. ACM. http://dl.acm.org/citation.cfm?id=1454018.

Zhang L., Tang J. & Zhang M.2012. Integrating temporal usage pattern into personalized tag prediction. In Web Technologies and Applications, Sheng, Q. Z., Wang, G., Jensen, C. S. & Xu, G. (eds). LNCS 7235, 354–365.Springer-Verlag Berlin Heidelberg.

Zhdanova A. & Shvaiko P.2006. Community-driven ontology matching. In The Semantic Web: Research and Applications, Sure, Y. & Domingue, J. (eds). LNCS 4011, 34–49. Springer Berlin Heidelberg. http://link.springer.com/chapter/10.1007/11762256_6.