1,720,998 research outputs found
SAMIR: A Smart 3D Assistant on the Web
No full textA current trend in modern HCI is represented by Embodied Conversational Agents (ECAs),
even designed to run on the Web. They are virtual 3D human-like front ends coupled with
software agents that are able to engage in a conversation with a user and execute complex
tasks, such as, for example, searching for some specific information or ordering some items
from the catalogue of an online shop.
This paper presents SAMIR system, a framework to build intelligent agents for the Web.
SAMIR consists of a 3D face which is animated to exploit expressions which are perceived
by the user; a custom version of the ALICE chatterbot to chat with the user; and finally an
XCS classifier system to deal with the problem of keeping conversation and face
expressions coherent with each other. Experimental results, taken from an online bookstore-based scenario, are presented at the end
SAMIR: Your 3D Virtual Bookseller
No full textIntelligent web agents, that exhibit a complex behavior, i.e. an autonomous rather than a merely reactive one, are daily gaining popularity as they allow a simpler and more natural interaction metaphor between the user and the machine, entertaining him/ber and giving to some extent the illusion of interacting with a human-like interface. In this paper we describe SAMIR an intelligent web agent satisfying the objectives listed above. It uses: - a 3D face animated via a morph-target technique to convey expressions to be communicated to the user, - a slightly modified version of the ALICE chatterbot to provide the user with dialoguing capabilities, - an XCS classifier system to manage the consistency between conversation and the face expressions. We also show some experimental results obtained applying SAMIR to a virtual bookselling scenario, involving the well-known Amazon.com site
An Agent that Learns to Support Users of a Web Site
No full textThe terms agent, intelligent agent and 3D agent are becoming more and more frequently used in literature. A key issue in the Web community is that a web site must be equipped with a virtual agent able to support user. In this paper we propose the SAMIR system, a tool for animating 3D intelligent agents, mainly founded on a genetic algorithms based learning system, namely an XCS, and on a FFD based technique for the facial deformation of the character. SAMIR is based on an object-oriented architecture, and it adopts the MPEG-4' Facial Animation Parameters as a description format for facial expressions and animations
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