Several studies have suggested recently that a more dynamic conflict resolution mechanism in the ACT–R cognitive architecture (Anderson & Lebiere, 1998) could improve the decision–making behaviour of cognitive models. This part of ACT–R theory is revisited and a new solution is proposed. The new algorithm (OPTIMIST) has been implemented as an overlay to the ACT–R architecture, and can be used a...

When people communicate they try to establish mutual knowledge. Garrod and Anderson (1987) proposed that a way to minimize effort during this process would be to follow a “output/input coordination” principle, where output to a partner is formulated according to the same principles of interpretation as those needed to interpret input from a partner. A computational model of establishing mutual ...

Abstract Graphics are good for showing the information in datasets and for complementing modelling. Sometimes graphics show information models miss, sometimes graphics help to make model results more understandable, and sometimes models show whether information from graphics has statistical support or not. It is the interplay of the two approaches that is valuable. Graphics could be used a lot ...

In this paper we present a computational cognitive model of two-player interaction under different information conditions. In particular, the model aims at reproducing human behavior in a laboratory experiment based on repeated “Chicken Game”. This research shows that information availability deeply influences the strategies and cognitive mechanisms chosen by players and the resulting outcomes....

The solar system r-abundance distribution is commonly derived from the observed solar values by subtracting the possible nucleosynthetic contribution of the s-process. The new parametric model of the s-process called the canonical multievent model is used to derive the s-component of the solar abundance distribution and to study the impact of nuclear and observational uncertainties on the solar...