Number of co-authors:15
Number of publications with 3 favourite co-authors:Michael J. Cole:3Jacek Gwizdka:3Nicholas J. Belkin:3
Ralf Bierig's 3 most productive colleagues in number of publications:Nicholas J. Belkin:45Fabio Crestani:43Ian Ruthven:33
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Publications by Ralf Bierig (bibliography)
Liu, Jingjing, Cole, Michael J., Liu, Chang, Bierig, Ralf, Gwizdka, Jacek, Belkin, Nicholas J., Zhang, Jun and Zhang, Xiangmin (2010): Search behaviors in different task types. In: JCDL10 Proceedings of the 2010 Joint International Conference on Digital Libraries 2010. pp. 69-78.
Personalization of information retrieval tailors search towards individual users to meet their particular information needs by taking into account information about users and their contexts, often through implicit sources of evidence such as user behaviors. Task types have been shown to influence search behaviors including usefulness judgments. This paper reports on an investigation of user behaviors associated with different task types. Twenty-two undergraduate journalism students participated in a controlled lab experiment, each searching on four tasks which varied on four dimensions: complexity, task product, task goal and task level. Results indicate regular differences associated with different task characteristics in several search behaviors, including task completion time, decision time (the time taken to decide whether a document is useful or not), and eye fixations, etc. We suggest these behaviors can be used as implicit indicators of the user's task type.
© All rights reserved Liu et al. and/or their publisher
Bierig, Ralf, Cole, Michael J., Gwizdka, Jacek and Belkin, Nicholas J. (2010): A Data Analysis and Modelling Framework for the Evaluation of Interactive Information Retrieval. In: Gurrin, Cathal, He, Yulan, Kazai, Gabriella, Kruschwitz, Udo, Little, Suzanne, Roelleke, Thomas, Rüger, Stefan M. and Rijsbergen, Keith van (eds.) Advances in Information Retrieval - 32nd European Conference on IR Research - ECIR 2010 March 28-31, 2010, Milton Keynes, UK. pp. 673-674.
Cole, Michael J., Gwizdka, Jacek, Bierig, Ralf, Belkin, Nicholas J., Liu, Jingjing, Liu, Chang and Zhang, Xiangmin (2010): Linking search tasks with low-level eye movement patterns. In: Proceedings of the 2010 Annual European Conference on Cognitive Ergonomics 2010. pp. 109-116.
Motivation -- On-the-task detection of the task type and task attributes can benefit personalization and adaptation of information systems. Research approach -- A web-based information search experiment was conducted with 32 participants using a multi-stream logging system. The realistic tasks were related directly to the backgrounds of the participants and were of distinct task types. Findings/Design -- We report on a relationship between task and individual reading behaviour. Specifically we show that transitions between scanning and reading behaviour in eye movement patterns are an implicit indicator of the current task. Research limitations/Implications -- This work suggests it is plausible to infer the type of information task from eye movement patterns. One limitation is a lack of knowledge about the general reading model differences across different types of tasks in the population. Although this is an experimental study we argue it can be generalized to real world text-oriented information search tasks. Originality/Value -- This research presents a new methodology to model user information search task behaviour. It suggests promise for detection of information task type based on patterns of eye movements. Take away message -- With increasingly complex computer interaction, knowledge about the type of information task can be valuable for system personalization. Modelling the reading/scanning patterns of eye movements can allow inference about the task type and task attributes.
© All rights reserved Cole et al. and/or their publisher
Ruthven, Ian, Glasgow, Leif Azzopardi, Baillie, Mark, Bierig, Ralf, Nicol, Emma, Sweeney, Simon and Yakici, Murat (2007): Intra-assessor consistency in question answering. In: Proceedings of the 30th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval 2007. pp. 727-728.
Simeoni, Fabio, Crestani, Fabio and Bierig, Ralf (2007): The DILIGENT framework for distributed information retrieval. In: Proceedings of the 30th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval 2007. pp. 781-782.
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