Construction et ?volution des repr?sentations mentales lors des premières utilisations d' un service de dialogue en langage naturel

摘要

This research is based on the study of the cognitive processes implemented during the first use of a new information search service in natural language. Our goal is to bring together elements on the development and the evolution of user's mental representation.The mental representations shown by users were isolated following on one hand the analysis of verbal productions, collected during four interaction tasks with a dialog service, and on the other hand a questionnaire about goals and subgoals, possible actions and system capacities.This study is aligned with the work of a research laboratory from France Telecom R&D. The service used is a provider prototype using a simple telephone interaction with flexible language.Our results show that the initial representation build by the user depends on his computer knowledge. Thereafter, the user representation evolved during the successive interactions thanks to the increasing of his declarative knowledge and his procedural abilities. The adjustmentof the representation is done for every user, however it is more or less efficient according to the relevance of the analogy chosen.