Task-Based Evaluation of Meeting Browsers: from Task Elicitation to User Behavior Analysis

Andrei Popescu-Belis, Mike Flynn, Pierre Wellner, Philippe Baudrion


Abstract
This paper presents recent results of the application of the task-based Browser Evaluation Test (BET) to meeting browsers, that is, interfaces to multimodal databases of meeting recordings. The tasks were defined by browser-neutral BET observers. Two groups of human subjects used the Transcript-based Query and Browsing interface (TQB), and attempted to solve as many BET tasks - pairs of true/false statements to disambiguate - as possible in a fixed amount of time. Their performance was measured in terms of precision and speed. Results indicate that the browser’s annotation-based search functionality is frequently used, in particular the keyword search. A more detailed analysis of each test question for each participant confirms that despite considerable variation across strategies, the use of queries is correlated to successful performance.
Anthology ID:
L08-1400
Volume:
Proceedings of the Sixth International Conference on Language Resources and Evaluation (LREC'08)
Month:
May
Year:
2008
Address:
Marrakech, Morocco
Editors:
Nicoletta Calzolari, Khalid Choukri, Bente Maegaard, Joseph Mariani, Jan Odijk, Stelios Piperidis, Daniel Tapias
Venue:
LREC
SIG:
Publisher:
European Language Resources Association (ELRA)
Note:
Pages:
Language:
URL:
http://www.lrec-conf.org/proceedings/lrec2008/pdf/580_paper.pdf
DOI:
Bibkey:
Cite (ACL):
Andrei Popescu-Belis, Mike Flynn, Pierre Wellner, and Philippe Baudrion. 2008. Task-Based Evaluation of Meeting Browsers: from Task Elicitation to User Behavior Analysis. In Proceedings of the Sixth International Conference on Language Resources and Evaluation (LREC'08), Marrakech, Morocco. European Language Resources Association (ELRA).
Cite (Informal):
Task-Based Evaluation of Meeting Browsers: from Task Elicitation to User Behavior Analysis (Popescu-Belis et al., LREC 2008)
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PDF:
http://www.lrec-conf.org/proceedings/lrec2008/pdf/580_paper.pdf