The vocabulary problem in human-system communication
Communications of the ACM
The Journal of Machine Learning Research
Usage patterns of collaborative tagging systems
Journal of Information Science
Exploratory search: from finding to understanding
Communications of the ACM - Supporting exploratory search
CHI '06 Extended Abstracts on Human Factors in Computing Systems
tagging, communities, vocabulary, evolution
CSCW '06 Proceedings of the 2006 20th anniversary conference on Computer supported cooperative work
Model-driven formative evaluation of exploratory search: A study under a sensemaking framework
Information Processing and Management: an International Journal
The microstructures of social tagging: a rational model
Proceedings of the 2008 ACM conference on Computer supported cooperative work
SNIF-ACT: a cognitive model of user navigation on the world wide web
Human-Computer Interaction
An elementary social information foraging model
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Signpost from the masses: learning effects in an exploratory social tag search browser
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Telling experts from spammers: expertise ranking in folksonomies
Proceedings of the 32nd international ACM SIGIR conference on Research and development in information retrieval
FAC '09 Proceedings of the 5th International Conference on Foundations of Augmented Cognition. Neuroergonomics and Operational Neuroscience: Held as Part of HCI International 2009
A Semantic Imitation Model of Social Tag Choices
CSE '09 Proceedings of the 2009 International Conference on Computational Science and Engineering - Volume 04
Exploratory information search by domain experts and novices
Proceedings of the 15th international conference on Intelligent user interfaces
Semantic imitation in social tagging
ACM Transactions on Computer-Human Interaction (TOCHI)
Exploratory information search by domain experts and novices
Proceedings of the 15th international conference on Intelligent user interfaces
Semantic imitation in social tagging
ACM Transactions on Computer-Human Interaction (TOCHI)
Learning by foraging: The impact of individual knowledge and social tags on web navigation processes
Computers in Human Behavior
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We present an extension of a computational cognitive model of social tagging and exploratory search called the semantic imitation model. The model assumes a probabilistic representation of semantics for both internal and external knowledge, and utilizes social tags as navigational cues during exploratory search. We used the model to generate a measure of information scent that controls exploratory search behavior, and simulated the effects of multiple presentations of navigational cues on both simple information retrieval and exploratory search performance based on a previous model called SNIF-ACT. We found that search performance can be significantly improved by these model-based presentations of navigational cues for both experts and novices. The result suggested that exploratory search performance depends critically on the match between internal knowledge (domain expertise) and external knowledge structures (folksonomies). Results have significant implications on how social information systems should be designed to facilitate knowledge exchange among users with different background knowledge.