ABSTRACT
Collaborative tagging applications have become a popular tool allowing Internet users to manage online resources with tags. Most collaborative tagging applications permit unsupervised tagging resulting in tag ambiguity in which a single tag has many different meanings and tag redundancy in which several tags have the same meaning. Common metrics for evaluating tag recommenders may overestimate the utility of ambiguous tags or ignore the appropriateness of redundant tags. Ambiguity and redundancy may even burden the user with additional effort by requiring them to clarify an annotation or forcing them to distinguish between highly related items. In this paper we demonstrate that ambiguity and redundancy impede the evaluation and performance of tag recommenders. Five tag recommendation strategies based on popularity, collaborative filtering and link analysis are explored. We use a cluster-based approach to define ambiguity and redundancy and provide extensive evaluation on three real world datasets.
- A. Almeida, B. Sotomayor, J. Abaitua, and D. López-de Ipi\ na. folk2onto: Bridging the gap between social tags and ontologies.Google Scholar
- V. Batagelj and M. Zaver\vsnik. Generalized cores. Arxiv preprint cs/0202039, 2002.Google Scholar
- S. Brin and L. Page. The anatomy of a large-scale hypertextual Web search engine. Computer networks and ISDN systems, 30(1--7):107--117, 1998. Google ScholarDigital Library
- M. Brun, C. Sima, J. Hua, J. Lowey, B. Carroll, E. Suh, and E. Dougherty. Model-based evaluation of clustering validation measures. Pattern Recognition, 40(3):807--824, 2007. Google ScholarDigital Library
- E. Durkheim, F. Alcan, and M. Morente. De la division du travail social. Presses universitaires de France Paris, 1960.Google Scholar
- J. Gemmell, A. Shepitsen, B. Mobasher, and R. Burke. Personalization in Folksonomies Based on Tag Clustering. Intelligent Techniques for Web Personalization&Recommender Systems, 2008.Google Scholar
- J. Gemmell, A. Shepitsen, B. Mobasher, and R. Burke. Personalizing navigation in folksonomies using hierarchical tag clustering. In Proceedings of the 10th international conference on Data Warehousing and Knowledge Discovery. Springer, 2008. Google ScholarDigital Library
- S. Golder and B. Huberman. The Structure of Collaborative Tagging Systems. Arxiv preprint cs.DL/0508082, 2005.Google Scholar
- A. Hotho, R. Jaschke, C. Schmitz, and G. Stumme. BibSonomy: A Social Bookmark and Publication Sharing System. Proceedings of the Conceptual Structures Tool Interoperability Workshop at the 14th International Conference on Conceptual Structures, Aalborg, Denmark, July, 2006.Google Scholar
- A. Hotho, R. Jaschke, C. Schmitz, and G. Stumme. Information retrieval in folksonomies: Search and ranking. Lecture Notes in Computer Science, 4011:411, 2006. Google ScholarDigital Library
- R. Jaschke, L. Marinho, A. Hotho, L. Schmidt-Thieme, and G. Stumme. Tag recommendations in folksonomies. Lecture Notes In Computer Science, 4702:506, 2007.Google ScholarCross Ref
- S. T. Jeff Z. Pan and E. Thomas. Reducing ambiguity in tagging systems with folksonomy search expansion. In 6th European Semantic Web Conference 2009, 2009. Google ScholarDigital Library
- M. E. I. Kipp and G. D. Campbell. Patterns and inconsistencies in collaborative tagging systems : An examination of tagging practices. Proceedings of the American Society for Information Science and Technology, November 2006.Google ScholarCross Ref
- S.-S. Lee and H.-S. Yong. Component based approach to handle synonym and polysemy in folksonomy. In CIT '07: Proceedings of the 7th IEEE International Conference on Computer and Information Technology, pages 200--205, Washington, DC, USA, 2007. IEEE Computer Society. Google ScholarDigital Library
- M. Lipczak. Tag Recommendation for Folksonomies Oriented towards Individual Users. ECML PKDD Discovery Challenge, page 84, 2008.Google Scholar
- S. Lloyd. Least squares quantization in PCM. IEEE Transactions on Information Theory, 28(2):129--137, 1982.Google ScholarDigital Library
- L. Marinho and L. Schmidt-Thieme. Collaborative Tag Recommendations. In Proceedings of 31st Annual Conference of the Gesellschaft fr Klassifikation (GfKl), Freiburg. Springer. Springer, 2007.Google Scholar
- A. Mathes. Folksonomies-Cooperative Classification and Communication Through Shared Metadata. Computer Mediated Communication, LIS590CMC (Doctoral Seminar), Graduate School of Library and Information Science, University of Illinois Urbana--Champaign, December, 2004.Google Scholar
- P. Mika. Ontologies are us: A unified model of social networks and semantics. Web Semantics: Science, Services and Agents on the World Wide Web, 5(1):5--15, 2007. Google ScholarDigital Library
- C. Van Rijsbergen. Information Retrieval. Butterworth-Heinemann Newton, MA, USA, 1979. Google ScholarDigital Library
- T. Vander Wal. Folksonomy definition and wikipedia. November 2005.Google Scholar
- J. Vig, S. Sen, and J. Riedl. Tagsplanations: explaining recommendations using tags. In IUI '09: Proceedings of the 13th international conference on Intelligent user interfaces, pages 47--56, New York, NY, USA, 2009. ACM. Google ScholarDigital Library
- X. Wu, L. Zhang, and Y. Yu. Exploring social annotations for the semantic web. In WWW '06: Proceedings of the 15th international conference on World Wide Web, pages 417--426, New York, NY, USA, 2006. ACM. Google ScholarDigital Library
- C. Yeung, N. Gibbins, and N. Shadbolt. Tag meaning disambiguation through analysis of tripartite structure of folksonomies. In Proceedings of the 2007 IEEE/WIC/ACM International Conferences on Web Intelligence and Intelligent Agent Technology--Workshops, pages 3--6. IEEE Computer Society Washington, DC, USA, 2007. Google ScholarDigital Library
- L. Zhang, X. Wu, and Y. Yu. Emergent semantics from folksonomies: A quantitative study. Journal on Data Semantics, pages 168--186, 2006. Google ScholarDigital Library
Index Terms
- The impact of ambiguity and redundancy on tag recommendation in folksonomies
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