Interaction in information retrieval: Selection and effectiveness of search terms

Amanda Spink and Tefko Saracevic

Journal of the American Society for Information Science, 1997, vol. 48, issue 8, 741-761

Abstract: We investigated the sources and effectiveness of search terms used during mediated on‐line searching under real‐life (as opposed to laboratory) circumstances. A stratified model of information retrieval (IR) interaction served as a framework for the analysis. For the analysis, we used the on‐line transaction logs, videotapes, and transcribed dialogue of the presearch and on‐line interaction between 40 users and 4 professional intermediaries. Each user provided one question and interacted with one of the four intermediaries. Searching was done using DIALOG. Five sources of search terms were identified: (1) the users' written question statements, (2) terms derived from users' domain knowledge during the interaction, (3) terms extracted from retrieved items as relevance feedback, (4) database thesaurus, and (5) terms derived by intermediaries during the interaction. Distribution, retrieval effectiveness, transition sequences, and correlation of search terms from different sources were investigated. Search terms from users' written question statements and term relevance feedback were the most productive sources of terms contributing to the retrieval of items judged relevant by users. Implications of the findings are discussed. © 1997 John Wiley & Sons, Inc.

Date: 1997
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