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Effect of task on time spent reading as an implicit measure of interest

โœ Scribed by Melanie Kellar; Carolyn Watters; Jack Duffy; Michael Shepherd

Publisher
Wiley (John Wiley & Sons)
Year
2005
Tongue
English
Weight
909 KB
Volume
41
Category
Article
ISSN
0044-7870

No coin nor oath required. For personal study only.

โœฆ Synopsis

Abstract

Information Filtering systems learn user preferences either through explicit or implicit feedback. However, requiring users to explicitly rate items as part of the interface interaction can place a large burden on the user. Implicit feedback removes the burden of explicit user ratings by transparently monitoring user behavior such as time spent reading, mouse movements and scrolling behavior. Previous research has shown that task may have an impact on the effectiveness of some implicit measures. In this work we report both qualitative and quantitative results of an initial study examining the relationship between user time spent reading and relevance for three web search tasks: relevance judgment, simple question answering and complex question answering. This study indicates that the usefulness of time spent as a measure of user interest is related to task and is more useful for more complex web search tasks. Future directions for this research are presented.

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