An evaluation of retrieval effectiveness for a full-text document-retrieval system
Communications of the ACM
Where should the person stop and the information search interface start?
Information Processing and Management: an International Journal
Evaluation of online catalogues: eliciting information from the user
Information Processing and Management: an International Journal
Information retrieval interaction
Information retrieval interaction
Knowledge-based search tactics
Information Processing and Management: an International Journal
Towards the use of situational information in information retrieval
Journal of Documentation
An evaluation of automatic query expansion in an online library catalogue
Journal of Documentation
Medical students' personal knowledge, searching proficiency, and database use in problem solving
Journal of the American Society for Information Science
A case for interaction: a study of interactive information retrieval behavior and effectiveness
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Interaction in information retrieval: selection and effectiveness of search terms
Journal of the American Society for Information Science
Users' information needs at different stages of a research project: a cognitive view
ISIC '96 Proceedings of an international conference on Information seeking in context
Cognitive models of directional inference in expert medical reasoning
Expertise in context
Information Processing and Management: an International Journal
Indexing and access for digital libraries and the Internet: human, database, and domain factors
Journal of the American Society for Information Science
From highly relevant to not relevant: examining different regions of relevance
Information Processing and Management: an International Journal
Journal of the American Society for Information Science
Relevance and contributing information types of searched documents in task performance
SIGIR '00 Proceedings of the 23rd annual international ACM SIGIR conference on Research and development in information retrieval
Information Processing and Management: an International Journal
Online Information Retrieval: Concepts, Principles, and Techniques
Online Information Retrieval: Concepts, Principles, and Techniques
Subject Knowledge, Source of Terms, and Term Selection in Query Expansion: An Analytical Study
Proceedings of the 24th BCS-IRSG European Colloquium on IR Research: Advances in Information Retrieval
Changes of search terms and tactics while writing a research proposal A longitudinal case study
Information Processing and Management: an International Journal
Journal of the American Society for Information Science and Technology
Human information behavior: Integrating diverse approaches and information use
Journal of the American Society for Information Science and Technology
Journal of the American Society for Information Science and Technology
Elicitation of term relevance feedback: an investigation of term source and context
SIGIR '06 Proceedings of the 29th annual international ACM SIGIR conference on Research and development in information retrieval
The dynamics of interactive information retrieval behavior, Part I: An activity theory perspective
Journal of the American Society for Information Science and Technology
Understanding help seeking within the context of searching digital libraries
Journal of the American Society for Information Science and Technology
Using a concept map to evaluate exploratory search
Proceedings of the third symposium on Information interaction in context
How doctors search: A study of query behaviour and the impact on search results
Information Processing and Management: an International Journal
A cross-domain analysis of task and genre effects on perceptions of usefulness
Information Processing and Management: an International Journal
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This article focuses on analysing students' information needs in terms of conceptual understanding of the topic they propose to study and its consequences for the search process and outcome. The research subjects were 22 undergraduates of psychology attending a seminar for preparing a research proposal for a small empirical study. They were asked to make searches in the PsycINFO database for their task in the beginning and end of the seminar. A pre- and postsearch interview was conducted in both sessions. The students were asked to think aloud in the sessions. This was recorded, as were the transaction logs. The results show that during the preparation of research proposals different features of the students' conceptual structure were connected to the search success. Students' ability to cover their conceptual construct by query terms was the major feature affecting search success during the whole process. In the beginning also the number of concepts and the proportion of subconcepts in the construct contributed indirectly via search tactics to retrieving partly useful references. Students' ability to extract new query terms from retrieved items improved search results.