Crowdsourcing and citizen science have established themselves in the mainstream of research methodology in recent years, employing a variety of methods to solve problems using human computation. An approach described here, termed “groupsourcing”, uses social networks to present problems and collect solutions. This paper details a method for archiving social network messages and investigates mes...

Service process orchestration using workflow technologies has led to significant improvements in generating predicable outcomes by automating tedious manual tasks but suffer from challenges related to the flexibility required in work especially when humans are involved. Recently emerging trends in enterprises to explore social computing concepts have realized value in more agile work process or...

In this paper we question the validity of factitious disorder as a meaningful psychiatric diagnosis. When the diagnosis is used there is often the assumption that the person engaging in the 'deception' is not lying in the traditional sense of being deliberately misleading. Moreover, little is known about the aetiology or psychopathology underlying factitious disorder, and the legitimacy of dece...

This paper presents a practical heuristic algorithm to address a node discovery problem. The node discovery problem is to discover a clue on the person, who does not appear in the observed records, but is relevant functionally in affecting decision-making and behavior of an organization. We define two topological relevance of a node in a social network (global and local relevance). Association ...

Impairment of social functioning has been considered characteristic of schizophrenia. According to current studies, poor social functioning is a prodromal and residual feature of schizophrenia, and people with schizophrenia who have poor social functioning are more vulnerable to relapses and a poor outcome. Social cognitive problem solving (SCPS) has been hypothesized to be related to social fu...

We tackle the polling problem in social networks where the privacy of exchanged information and user reputation are very critical. Indeed, users want to preserve the confidentiality of their votes and to hide, if any, their misbehaviors. Recent works [9, 10] proposed polling protocols based on simple secret sharing scheme and without requiring any central authority or cryptography system. But t...

This study examined the relations between personality traits and social problem-solving ability. Personality was measured by the Eysenck Personality Questionnaire-Revised, the NEO Five-Factor Inventory, and the Positive and Negative Affect Schedule. Social problem-solving ability was assessed by the Social Problem-Solving Inventory-Revised, which measures five different dimensions of problem-so...

Coase always expressed dissatisfaction with neo-classical economics and advocated for a new approach. Rather than using toy mathematical models built from unrealistic, idealized assumptions, Coase preferred to study real-world contexts, including actual legal cases. He demonstrated the utility of his approach in ‘The Problem of Social Cost’. Yet almost all of Coase’s contemporaries completely i...

Resource reallocationproblems aim todetermine an allocationmaximizing a given objective function. Numerous applications are based on the assumption of restricted contacts between entities but, up to now, studies have been based on unrealistic contexts. Indeed, most of the time, agents are omniscient and/or have complete communication abilities, which are not plausible assumptions in many applic...