| Title | 
  Task-Based Evaluation of Meeting Browsers: from Task Elicitation to User Behavior Analysis | 
  
  
  | Authors | 
  Andrei Popescu-Belis, Mike Flynn, Pierre Wellner and 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 browsers 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. | 
  
  
  | Language | 
  Single language | 
  
  
  | Topics | 
  Evaluation methodologies, Multimedia annotation and processing, Tools, systems, applications   | 
  
  
  Full paper  | 
  Task-Based Evaluation of Meeting Browsers: from Task Elicitation to User Behavior Analysis | 
  
  
  Slides  | 
  - | 
  
  
  | Bibtex | 
  @InProceedings{POPESCUBELIS08.580, 
   author =  {Andrei Popescu-Belis, Mike Flynn, Pierre Wellner and Philippe Baudrion}, 
   title =  {Task-Based Evaluation of Meeting Browsers: from Task Elicitation to User Behavior Analysis}, 
   booktitle =  {Proceedings of the Sixth International Conference on Language Resources and Evaluation (LREC'08)}, 
   year =  {2008}, 
   month =  {may}, 
   date =  {28-30}, 
   address =  {Marrakech, Morocco}, 
   editor =  {Nicoletta Calzolari (Conference Chair), Khalid Choukri, Bente Maegaard, Joseph Mariani, Jan Odijk, Stelios Piperidis, Daniel Tapias}, 
   publisher =  {European Language Resources Association (ELRA)}, 
   isbn =  {2-9517408-4-0}, 
   note =  {http://www.lrec-conf.org/proceedings/lrec2008/}, 
   language =  {english} 
   }   |