Patterns of search: analyzing and modeling Web query refinement
UM '99 Proceedings of the seventh international conference on User modeling
Combining evidence for automatic web session identification
Information Processing and Management: an International Journal - Issues of context in information retrieval
The effects of domain knowledge on search tactic formulation
Journal of the American Society for Information Science and Technology
Journal of the American Society for Information Science and Technology
Automatic new topic identification using multiple linear regression
Information Processing and Management: an International Journal
Defining a session on Web search engines: Research Articles
Journal of the American Society for Information Science and Technology
Task Effects on Interactive Search: The Query Factor
Focused Access to XML Documents
Analyzing and evaluating query reformulation strategies in web search logs
Proceedings of the 18th ACM conference on Information and knowledge management
Analysis of multiple query reformulations on the web: The interactive information retrieval context
Information Processing and Management: an International Journal
Implicit acquisition of context for personalization of information retrieval systems
Proceedings of the 2011 Workshop on Context-awareness in Retrieval and Recommendation
Factors affecting the selection of search tactics: Tasks, knowledge, process, and systems
Information Processing and Management: an International Journal
Analysis of query reformulations in a search engine of a local web site
ECIR'12 Proceedings of the 34th European conference on Advances in Information Retrieval
Relationship between the nature of the search task types and query reformulation behaviour
Proceedings of the Seventeenth Australasian Document Computing Symposium
Proceedings of the 24th Australian Computer-Human Interaction Conference
Utilizing query change for session search
Proceedings of the 36th international ACM SIGIR conference on Research and development in information retrieval
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Users engaged in information search often reformulate or modify their queries. This paper reports on an investigation of how task type and task situation influence users' query reformulation behavior. A controlled experiment was conducted with 48 participants, each working on six web search tasks classified into three types according to the task structure: Simple, Hierarchical and Parallel. We developed a taxonomy of query reformulation and used an automated method to detect the reformulations. Our results showed that Specialization was most frequently used in Simple tasks, and Word Substitution was most frequently used in Parallel tasks. After visiting and saving a useful web page, Generalization was less likely to be used while New query was more likely to be used. We also found that the effectiveness of each query reformulation type varied in different task types. The results of this study demonstrate the effect of task type on users' query reformulation behavior and have implications for the design of query suggestions that are offered to users during searching.