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</o:shapelayout></xml><![endif]--></head><body lang=ES link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span lang=EN-US>Dear all,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>In the framework of a project of the 7<sup>th</sup> Framework Programme, called VERITAS, we are aiming to construct virtual user models that represent the <b>capabilities and disabilities of both elderly and disabled users</b>. For developing these virtual models, two parallel researches are being performed: one focused on the existing suitable physical models, and the other focused on <b>cognitive models</b>. These cognitive models should allow representing <b>cognitive disabilities and psychological states such as stress and fatigue</b>. The <b>virtual mod</b>els will be use <b>in a simulation</b> where they will perform a number of tasks in different domains: automotive, workspace, infotainment, etc. The <b>purpose of this simulation</b> is <b>to <i>see</i></b><i> whether this virtual model</i> representing a human being with a disability, can <b>perform the proposed tasks</b> in a simulation.(ie: a person with upper-limb impairment won’t be able to perform a range of tasks with the hands or a person with a severe memory impairment cannot retain new memories and therefore cannot memorize a telephone number).<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>After an initial research, it seems that ACT-R is one of the most promising cognitive architectures, since it allows us to “moderate/overlay” the models in order to represent a varied number of users (in our case it can be used to modified the performance of user’s memory and attention that decreases for elderly and some cognitive disabilities).<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>As I mentioned before, in our project, these “virtual models” are the input of a simulation. This simulation has as input these virtual models, but also the simulation models ( based on a composition of tasks previously defined in XML).<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>So, if I’m not mistaken, if you want to simulate a person performing a task (ie: driving) you have to “write in ACT-R” all the information regarding the declarative and procedural memory. In this example model the productions that model how people drive and the facts (chunks) of driving.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>However, there are some issues that remain unclear to me:<o:p></o:p></span></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo2'><![if !supportLists]><span lang=EN-US style='font-family:Symbol'><span style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span lang=EN-US>These simulation models we are developing (task models) are not fixed, we have a repository of tasks and the developers can “compose” the final simulation model as a sequence of tasks, allowing to have an infinite number of simulation of models. So we would need that Act-R allowed certain modularity and reuse of the code for the models. Is this feasible? Is there any modification of ACT-R allowing this?<o:p></o:p></span></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo2'><![if !supportLists]><span lang=EN-US style='font-family:Symbol'><span style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span lang=EN-US>Another question is concerning the simulation: if there are external events happening in the simulation (ie: a car in front of us when driving), should these “events” also be part of the declarative memory? If the answer is yes, do we have APIs that allow us to integrate this “events” into chunks in an automatic way?<o:p></o:p></span></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo2'><![if !supportLists]><span lang=EN-US style='font-family:Symbol'><span style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span lang=EN-US>Does it exist t any open repository of ACT-R tasks models that we could use?<o:p></o:p></span></p><p class=MsoListParagraph><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>I would really appreciate any advise you could give me. This is a new world for me, and it’s difficult to go into it without getting lost.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Best regards and thanks in advance,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Ana Navarro<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal style='margin-bottom:12.0pt;line-height:115%'><b><span lang=PT style='font-size:10.0pt;line-height:115%;font-family:"Arial","sans-serif";color:#1F497D'>Ana Navarro Cerdá</span></b><span lang=PT style='font-size:10.0pt;line-height:115%;font-family:"Arial","sans-serif";color:black'><br></span><span lang=PT style='font-size:9.0pt;line-height:115%;font-family:"Arial","sans-serif";color:black'>R&D Department</span><span lang=PT style='font-size:10.0pt;line-height:115%;font-family:"Arial","sans-serif";color:black'><o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#4F81BD'>ITACA-TSB <o:p></o:p></span></p><p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#4F81BD'><img width=15 height=14 id="Imagen_x0020_1" src="cid:image001.gif@01CBD285.3F517F20" alt="cid:image001.gif@01C8E751.8CDC3C70"></span><b><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#4F81BD'> </span></b><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#4F81BD'>Health & Wellbeing Technologies<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:9.0pt;font-family:"Arial","sans-serif";color:#1F497D'>Univ. </span><span lang=PT style='font-size:9.0pt;font-family:"Arial","sans-serif";color:#1F497D'>Politécnica de Valencia<o:p></o:p></span></p><p class=MsoNormal><span lang=PT style='font-size:9.0pt;font-family:"Arial","sans-serif";color:#1F497D'>Edificio G8 - Camino de Vera s/n<br>46022 Valencia<o:p></o:p></span></p><p class=MsoNormal><span lang=PT style='font-size:9.0pt;font-family:"Arial","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=PT style='font-size:9.0pt;font-family:"Arial","sans-serif";color:#1F497D'>tel: +34 96 387 76 06<br>fax: +34 96 387 72 79<br></span><span lang=PT style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#4F81BD'>e-mail</span><span lang=PT style='font-size:9.0pt;font-family:"Arial","sans-serif";color:#548DD4'>:</span><span lang=PT style='font-size:9.0pt;color:#548DD4'> </span><u><span lang=PT style='font-size:9.0pt;font-family:"Arial","sans-serif";color:#548DD4'><a href="mailto:annacer@itaca.upv.es"><span style='color:blue'>annacer@itaca.upv.es</span></a></span></u><span lang=PT style='font-size:9.0pt;color:#548DD4'><o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><a href="http://www.tsb.upv.es"><span lang=EN-US style='font-size:9.0pt;font-family:"Arial","sans-serif";color:#548DD4'>http://www.tsb.upv.es</span></a></span><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#548DD4'><o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p></div></body></html>