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A statistical classifier for assessing the level of stress from the analysis of...
Carneiro, Davide; Novais, Paulo; Gomes, Marco; Oliveira, P. M.; Neves, JoséThis paper describes an approach for assessing the level of stress of users of mobile devices with tactile screens by analysing their touch patterns. Two features are extracted from touches: duration and intensity. These features allow to analyse the intensity curve of each touch.We use decision trees (J48) and support vector machines (SMO) to train a stress detection classifier using additional data collected ...
An agent-based architecture for online dispute resolution services
Carneiro, DavideTese de doutoramento em "Philosophy in Informatics" ; Conflicts are a natural consequence of our daily social interactions and should be regarded as opportunities to improve some aspect, condition or flaw. In order for conflicts to have positive outcomes, not only from an economical view but also concerning the maintenance of good interpersonal-relationships, tools are needed that can explain to the parties th...
Using Case Based Reasoning and principled negotiation to provide decision suppo...
Carneiro, Davide; Novais, Paulo; Andrade, Francisco Carneiro Pacheco; Zeleznikow, John; Neves, JoséThe growing use of Information Technology in the commercial arena leads to an urgent need to find alternatives to traditional dispute resolution. New tools from fields such as Artificial Intelligence should be considered in the process of developing novel Online Dispute Resolution platforms, in order to make the ligation process simpler, faster and conform with the new virtual environments. In this work, we des...
Using genetic algorithms to create solutions for conflict resolution
Carneiro, Davide; Novais, Paulo; Neves, JoséThe process of devising solutions for conflict resolution generally configures a challenging task. There exist different approaches to address the problem, namely the use of case-based models or even relying on the parties themselves to perform the task. From a computational point of view, these problems generally represent a NP-complete problem. In order to surpass this shortcoming, in this paper it is present...
The relationship between stress and conflict handling style in an ODR environment
Novais, Paulo; Carneiro, Davide; Gomes, Marco; Neves, JoséSerie : Lecture notes in computer science, vol. 7856, ISSN 0302-9743 ; Up until now, most approaches to Online Dispute Resolution focused on "traditional" problems such as the generation of solutions, the support to negotiation or the definition of strategies. Although these problems are evidently valid and important ones, research should also start to consider new potential issues that arise from technologica...
Studying stress on e-Learning users
Carneiro, Davide; Gonçalves, Sérgio; Novais, Paulo; Neves, JoséSerie : Lecture notes in computer science, ISSN 0302-9743, vol. 8154 ; E-Learning, much like any other communication processes, has been significantly shaped by technological evolution. In its original form, e-Learning aimed to bring the education closer to people, making it more modular and personalized. However, in reality, we observe that it represents a separation between student and teacher, simplifying t...
Monitoring mental fatigue through the analysis of keyboard and mouse interactio...
Pimenta, André; Carneiro, Davide; Novais, Paulo; Neves, JoséIn our living, we often have a sense of being tired due to a mental or physical work, plus a feeling of performance degradation even in the accomplishment of simple tasks. However, these mental states are often not consciously felt or are ignored, an attitude that may result in human failures, errors and even in the occurrence of health problems or on a decrease in the quality of life. States of fatigue may be ...
Dynamically improving collective environments through mood induction procedures
Carneiro, Davide; Novais, Paulo; Catalão, Fábio; Marques, José; Pimenta, André; Neves, JoséIn our daily living, the environment surrounding us in uences us as much or more than we in uence it. Whether it is a domestic, leisure or working environment, its conditions will certainly have short and long-term e ects on aspects such as stress, mood or fatigue, which will in turn in uence indicators such as productivity, quality of work, quality of life, personal/group performance or even health. In this pa...
Extracting behavioural patterns from a negotiation game
Gomes, Marco; Oliveira, Tiago José Martins; Carneiro, Davide; Novais, PauloThe work presented focuses not only on the behavioural patterns that influence the outcome of a negotiation, but also on the discovery of ways to predict the type of conflict used in the process and the stress levels of the actors. After setting up an experimental intelligent environment provided with sensors to capture behavioural and contextual information, a set of relevant data was collected and analysed, w...
Keystrokes and clicks : measuring stress on e-learning students
Rodrigues, Manuel; Gonçalves, Sérgio; Carneiro, Davide; Novais, Paulo; Fdez-Riverola, FlorentinoIn traditional learning, teachers can easily get an insight into how their students work and learn and how they interact in the classroom. However, in online learning, it is more difficult for teachers to see how individual students behave. With the enormous growing of e-learning platforms, as complementary or even primary tool to support learning in organizations, monitoring students’ success factors becomes a...
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