By Zsófia Ruttkay, Catherine Pelachaud
Embodied conversational brokers (ECAs) are independent software program entities with human-like visual appeal and communique talents. those brokers can tackle a few diverse roles, for instance, as an assistant, train, details supplier, or customer support agent. they might additionally easily characterize or entertain a person. the ideal nature and merits of alternative features of ECAs calls for cautious research. Questions variety from the functionality of an eyebrow increase to mechanisms for assessing and bettering ECA trustworthiness. This e-book might help specialists and architects within the specification and improvement of functions incorporating ECAs. half 1 offers instructions for overview methodologies and the identity of layout and review parameters. half 2 demonstrates the significance of contemplating the user's viewpoint and interplay adventure. half three addresses matters in fine-tuning layout parameters of ECAs and verifying the perceived impression. ultimately, partly four classes discovered from a couple of program case stories are offered. The publication is meant for either ECA researchers in academia and undefined, and builders and architects drawn to making use of the expertise.
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Additional info for From Brows to Trust: Evaluating Embodied Conversational Agents
Is superposition and concatenation of facial expressions supported, on what basis? Can the face change colour (redden, turn pale)? Are the facial expressions meant to be realistic, may be characteristic of a given real person, or of some group (by culture, by profession), or generic? Are the facial expressions designed as cartoon-like? The eﬀect of speech punctuation by facial expression has been investigated, recently in more depth and for diﬀerent cultures too (see Chapter 7 by Krahmer et al.
Learning, change in health behaviour, increased likelihood of buying a product). This speciality, rather than beginning from generally applicable qualities of ECAs, begins from a particular application domain in which ECAs may provide value. The focus is on thoroughly researching such an application domain, designing and implementing an ECA to meet needs and ﬁll a suitable role within that domain, and then testing the completed agent with real users, using benchmarks drawn from the domain. Researchers working in this speciality must generate agents that are suﬃciently believable and sociable to support the task context, but their focus is on developing these qualities around the particular task at hand, such as creating a believable and engaging mathematics tutor or health counsellor.
And Lester, J. (1999). Lifelike pedagogical agents and aﬀective computing: An exploratory synthesis. Lecture Notes in Computer Science 1600:195–212. Fiske, S. and Taylor, S. (1991). Social Cognition. McGraw-Hill, New York. 24 KATHERINE ISBISTER AND PATRICK DOYLE Foner, L. (1993). What’s an agent, anyway? A sociological case study. Agents Memo 93-01, Media Laboratory, Massachusetts Instutite of Technology, Cambridge, MA. Franklin, S. and Graesser, A. (1997). Is it an agent, or just a program: a taxonomy for autonomous agents.