We present a probabilistic model to monitor a user’s emotions and engagement during the interaction with educational games. We illustrate how our probabilistic model assesses affect by integrating evidence on both possible causes of the user’s emotional arousal (i.e., the state of the interaction) and its effects (i.e., bodily expressions that are known to be influenced by emotional reactions)....

One says that Veldkamp lines exist for a point-line geometry Γ if, for any three distinct (geometric) hyperplanes A, B and C (i) A is not properly contained in B and (ii) A ∩ B ⊆ C implies A ⊂ C or A ∩ B = A ∩ C. Under this condition, the set V of all hyperplanes of Γ acquires the structure of a linear space – the Veldkamp space – with intersections of distinct hyperplanes playing the role of l...

Cardiovascular conditions account for more medical costs than any other diagnostic category in the United States. Increasingly, economic constraints will shape policy related to health care and research. Hypertension is the most common cardiovascular condition, and despite low unit health care costs, the aggregate costs are considerable. However, the unit and aggregate costs of the complication...

In the original formulation of influence diagrams, each model contained exacly one utility node. Tatman and Shachter (1990) introduced the possibility of having super-value nodes that represent the sum or the product of their parents’ utility functions. However the algorithm they proposed for dealing with super-value nodes has two shortcomings: it requires dividing potentials when reversing arc...

This paper is concerned with the general problem of constructing decision tables and more specifically, with the identification of all possible outcomes of decisions. We introduce and propose basic influence diagrams as a simple way of describing problems of decision making under strict uncertainty. We then establish a correspondence between basic influence diagrams and symmetric generalised as...

this study is looking to understand the reasons behind cold relations of iran and republic of azerbaijan. the authors believe that iran and azerbaijan have not had friendly relationship in spite of many similarities including historical, cultural, ethnic and religious background. the hypothesis of this study is that there are six factors that cause the unfriendly relations. these factors are et...

this paper aims to use a priority framework based on decision making trial and evaluation laboratory (dematel) to help organizations build awareness of the critical influential factors affecting successful implementation of km. to identify critical influential factors, the authors studied and reviewed relevant literature from numerous fields of study associated with the essential issues of km. ...

one of the strategies for achieving the knowledge-based economy and wealth creation is high technologies transfer. depending on their needs, all governments and knowledge-based corporations are transferring high technologies at different technology readiness levels. in this study, the researcher seeks to identify and rank the individual and organizational factors affecting high technologies tra...