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Are episodic context features helpful for refinding tasks? Lessons learnt from a case study with lifelogs

Chen, Yi and Jones, Gareth J.F. (2014) Are episodic context features helpful for refinding tasks? Lessons learnt from a case study with lifelogs. In: Information Interaction in Context conference (IIiX 2014) , 26-30 Aug 2014, Regensburg, Germany.

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Both psychological theories and findings in information science suggest that people may remember the episodic context of previously encountered information. This implies that a user’s episodic memory might be utilized to improve the efficiency or effectiveness of refinding tasks. In this paper, we report a case study which aims to explore the feasibility of integrating episodic context into the design of information refinding systems. The subjects in this study collected 20 months of rich contextual data along including the full text of all documents, emails, web pages and so on, which they accessed during the collection period. We developed a “memory-friendly” system based on psychological theories to test the hypothesis through user studies requiring the subjects to find their personal data using this system. From examination of the user activity log and a post-task questionnaire, we found that although our designed features, which support or utilize episodic context or autobiographical memory, were not used as frequently as we expected, they did improve the effectiveness of the refinding tasks.

Item Type:Conference or Workshop Item (Paper)
Event Type:Conference
Uncontrolled Keywords:Refinding; Memory; Episodic context; Lifelog; Case study
Subjects:Computer Science > Lifelog
Computer Science > Information retrieval
DCU Faculties and Centres:Research Initiatives and Centres > Centre for Digital Video Processing (CDVP)
Research Initiatives and Centres > Centre for Next Generation Localisation (CNGL)
DCU Faculties and Schools > Faculty of Engineering and Computing > School of Computing
Published in:Proceedings of IIiX 2014. .
Use License:This item is licensed under a Creative Commons Attribution-NonCommercial-Share Alike 3.0 License. View License
Funders:Science Foundation Ireland
ID Code:20388
Deposited On:22 Jan 2015 10:54 by Gareth Jones. Last Modified 12 Jan 2017 13:18

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