The vocabulary problem in human-system communication
Communications of the ACM
Term-weighting approaches in automatic text retrieval
Information Processing and Management: an International Journal
Real life, real users, and real needs: a study and analysis of user queries on the web
Information Processing and Management: an International Journal
Cumulated gain-based evaluation of IR techniques
ACM Transactions on Information Systems (TOIS)
Query length in interactive information retrieval
Proceedings of the 26th annual international ACM SIGIR conference on Research and development in informaion retrieval
The link prediction problem for social networks
CIKM '03 Proceedings of the twelfth international conference on Information and knowledge management
Usage patterns of collaborative tagging systems
Journal of Information Science
Anonymous personalization in collaborative web search
Information Retrieval
HT06, tagging paper, taxonomy, Flickr, academic article, to read
Proceedings of the seventeenth conference on Hypertext and hypermedia
The complex dynamics of collaborative tagging
Proceedings of the 16th international conference on World Wide Web
Random walks on the click graph
SIGIR '07 Proceedings of the 30th annual international ACM SIGIR conference on Research and development in information retrieval
Measurement and analysis of online social networks
Proceedings of the 7th ACM SIGCOMM conference on Internet measurement
Flickr tag recommendation based on collective knowledge
Proceedings of the 17th international conference on World Wide Web
Proceedings of the 31st annual international ACM SIGIR conference on Research and development in information retrieval
Web search personalization via social bookmarking and tagging
ISWC'07/ASWC'07 Proceedings of the 6th international The semantic web and 2nd Asian conference on Asian semantic web conference
Information retrieval in folksonomies: search and ranking
ESWC'06 Proceedings of the 3rd European conference on The Semantic Web: research and applications
ITWP'03 Proceedings of the 2003 international conference on Intelligent Techniques for Web Personalization
A query model based on normalized log-likelihood
Proceedings of the 18th ACM conference on Information and knowledge management
The task-dependent effect of tags and ratings on social media access
ACM Transactions on Information Systems (TOIS)
UMAP'11 Proceedings of the 19th international conference on User modeling, adaption, and personalization
Information Processing and Management: an International Journal
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Social content systems contain enormous collections of unstructured user-generated content, annotated by the collaborative effort of regular Internet users. Tag-clouds have become popular interfaces that allow users to query the database of these systems by clicking relevant terms. However, these single click queries are often not expressive enough to effectively retrieve the desired content. Users have to use multiple clicks or type longer queries to satisfy their information need. To enhance the predicted content ranking we use a random walk model that effectively integrates the user's preference and semantically related query terms. We use the collaborative annotations from a popular on-line book catalog to create a social annotation graph and study the effect of personalization and smoothing for increasing query lengths. We show that personalization and smoothing allow the user to find equally relevant content with fewer query terms compared to a frequency based content ranking with TF-IDF weighing. As expected, we see that the influence of the random walk model disappears if users type more detailed queries. Finally, we discuss the observations with respect to synonyms and homographs which are well known to hamper the performance of information retrieval systems.