A Proposal to Model Interaction from the Analysis of Student - Pedagogic Conversational Agent Logs

A Proposal to Model Interaction from the Analysis of Student - Pedagogic Conversational Agent Logs

Diana Pérez-Marín (Universidad Rey Juan Carlos, Spain) and Ismael Pascual-Nieto (Universidad Rey Juan Carlos, Spain)
DOI: 10.4018/978-1-4666-2530-3.ch007
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According to User-Centered Design, computer interactive systems should be implemented taking into account the users’ preferences. However, in some cases, it is not easy to apply conventional Human-Computer interaction evaluation techniques to identify the users’ needs and improve the user-system interaction. Therefore, this chapter proposes a procedure to model the interaction behaviour from the analysis of conversational agent dialog logs. A case study in which the procedure has been applied to model the behaviour of 20 children when interacting with multiple personality Pedagogic Conversational Agents is described as an illustrative sample of the goodness and practical application of the procedure.
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Evaluation is key in User Centered Designs because from the comments and opinions of the users the prototypes of the computer interactive system evolve to new versions. In order to evaluate the system, several procedures and techniques have been proposed that can be applied in different phases of the software life cycle.

Several main evaluation methods can be distinguished (see Figure 1 for a general overview based on Dix et al. 2004):

Figure 1.

Summary of the existing evaluation methods

  • Evaluation through expert analysis: heuristics, standards or cognitive walkthroughs are used to identify potential difficulties from the point of view of the expert.

  • Evaluation through user participation: users interact with the system as they would normally do when the computer application is released, and/or they complete some tasks as indicated by the researchers or to fill in some questionnaires.

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