When thumbnails are and are not enough: Factors behind users' requests for information from a video digital library

Albertson, Dan

Permalink

https://hdl.handle.net/2142/42079 Copy

Description

Title

When thumbnails are and are not enough: Factors behind users' requests for information from a video digital library

Author(s)

Albertson, Dan

Issue Date

2013-02

Keyword(s)

• video retrieval
• user interaction
• user interface design
• keyframes
• digital libraries
• human-computer interaction
• information retrieval

Abstract

Research questions were posed to examine users’ requests for information, beyond a keyframe, and certain influences thereof when interactively retrieving video. Laboratory-style search experiments employing 28 users from the field of science education were conducted. Users were asked to attempt six pre-designed search topics. All actions of the users and topic durations were recorded, and a post-search questionnaire was used to collect data about the topics and users’ experiences and impressions of the experimental system. Results showed that users regularly requested information about a clip, beyond a keyframe, while searching, not browsing, and that requests varied significantly across certain topic categories devised for this study. Users’ requests for information about a clip were negatively correlated with post-search satisfaction ratings, search times, and the number of actions performed. Findings also indicated that users' requests were not associated with a search topic's representation of the experimental domain. Such findings give researchers additional insight about user interface design for video digital libraries.

Publisher

iSchools

Type of Resource

text

Language

en

Permalink

http://hdl.handle.net/2142/42079

DOI

https://doi.org/10.9776/13308

Copyright and License Information

Copyright © 2013 is held by the authors. Copyright permissions, when appropriate, must be obtained directly from the authors.

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