TY - GEN
T1 - Personalizing information retrieval for multi-session tasks
T2 - 33rd Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2010
AU - Liu, Jingjing
AU - Belkin, Nicholas J.
PY - 2010
Y1 - 2010
N2 - Dwell time as a user behavior has been found in previous studies to be an unreliable predictor of document usefulness, with contextual factors such as the user's task needing to be considered in its interpretation. Task stage has been shown to influence search behaviors including usefulness judgments, as has task type. This paper reports on an investigation of how task stage and task type may help predict usefulness from the time that users spend on retrieved documents, over the course of several information seeking episodes. A 3-stage controlled experiment was conducted with 24 participants, each coming 3 times to work on 3 sub-tasks of a general task, couched either as "parallel" or "dependent" task type. The full task was to write a report on the general topic, with interim documents produced for each sub-task. Results show that task stage can help in inferring document usefulness from decision time, especially in the parallel task. The findings can be used to increase accuracy in predicting document usefulness and accordingly in personalizing search for multi-session tasks.
AB - Dwell time as a user behavior has been found in previous studies to be an unreliable predictor of document usefulness, with contextual factors such as the user's task needing to be considered in its interpretation. Task stage has been shown to influence search behaviors including usefulness judgments, as has task type. This paper reports on an investigation of how task stage and task type may help predict usefulness from the time that users spend on retrieved documents, over the course of several information seeking episodes. A 3-stage controlled experiment was conducted with 24 participants, each coming 3 times to work on 3 sub-tasks of a general task, couched either as "parallel" or "dependent" task type. The full task was to write a report on the general topic, with interim documents produced for each sub-task. Results show that task stage can help in inferring document usefulness from decision time, especially in the parallel task. The findings can be used to increase accuracy in predicting document usefulness and accordingly in personalizing search for multi-session tasks.
KW - Contextual factors in IR
KW - Dwell time
KW - Personalization
KW - Task stage
KW - Task type
UR - http://www.scopus.com/inward/record.url?scp=77956014082&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77956014082&partnerID=8YFLogxK
U2 - 10.1145/1835449.1835457
DO - 10.1145/1835449.1835457
M3 - Conference contribution
AN - SCOPUS:77956014082
SN - 9781605588964
T3 - SIGIR 2010 Proceedings - 33rd Annual International ACM SIGIR Conference on Research and Development in Information Retrieval
SP - 26
EP - 33
BT - SIGIR 2010 Proceedings - 33rd Annual International ACM SIGIR Conference on Research and Development in Information Retrieval
Y2 - 19 July 2010 through 23 July 2010
ER -