Interaction in information retrieval: selection and effectiveness of search terms

We investigated the sources and effectiveness of search actions are still evolving, changing, and, at times, improvterms 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 ing. However, we still do not fully understand the many complex aspects of interactive processes, despite a num-ber of theoretical and experimental studies and scholarly treatises (Ingwerson, 1992, 1996). Furthermore, most of 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