Fuzzy Group Decision Making for Influence-Aware Recommendations

The file attached to this record is the author's final peer reviewed version. The Publisher's final version can be found by following the DOI link.Group Recommender Systems are special kinds of Recommender Systems aimed at suggesting items to groups rather than individuals taking into account, at the same time, the preferences of all (or the majority of) members. Most existing models build recommendations for a group by aggregating the preferences for their members without taking into account social aspects like user personality and interpersonal trust, which are capable of affecting the item selection process during interactions. To consider such important factors, we propose in this paper a novel approach to group recommendations based on fuzzy influence-aware models for Group Decision Making. The proposed model calculates the influence strength between group members from the available information on their interpersonal trust and personality traits (possibly estimated from social networks). The estimated influence network is then used to complete and evolve the preferences of group members, initially calculated with standard recommendation algorithms, toward a shared set of group recommendations, simulating in this way the effects of influence on opinion change during social interactions. The proposed model has been experimented and compared with related works

Hypermentalizing, Attachment, and Epistemic Trust in Adolescent BPD: Clinical Illustrations.

Borderline personality disorder (BPD) has been shown to be a valid and reliable diagnosis in adolescents and associated with a decrease in both general and social functioning. With evidence linking BPD in adolescents to poor prognosis, it is important to develop a better understanding of factors and mechanisms contributing to the development of BPD. This could potentially enhance our knowledge and facilitate the design of novel treatment programs and interventions for this group. In this paper, we outline a theoretical model of BPD in adolescents linking the original mentalization-based theory of BPD, with recent extensions of the theory that focuses on hypermentalizing and epistemic trust. We then provide clinical case vignettes to illustrate this extended theoretical model of BPD. Furthermore, we suggest a treatment approach to BPD in adolescents that focuses on the reduction of hypermentalizing and epistemic mistrust. We conclude with an integration of theory and practice in the final section of the paper and make recommendations for future work in this area. (PsycINFO Database Recor

Network Triads: Transitivity, Referral and Venture Capital Decisions in China and Russia

This article examines effects of dyadic ties and interpersonal trust on referrals and investment decisions of venture capitalists in the Chinese and Russian contexts. The study uses the postulate of transitivity of social network theory as a conceptual framework. The findings reveal that referee-venture capitalist tie, referee-entrepreneur tie, and interpersonal trust between referee and venture capitalist have positive effects on referrals and investment decisions of venture capitalists. The institutional, social and cultural differences between China and Russia have minimal effects on referrals. Interpersonal trust has positive effects on investment decisions in Russia.http://deepblue.lib.umich.edu/bitstream/2027.42/40138/3/wp752.pd

The irony of choice in recruitment: when similarity turns recruiters to other candidates

Across two experimental studies, we examine the influence of similarity perceptions on recruiters’ job fit perceptions of job applicants. In addition, a robustness study extends the effect of similarity by introducing work-related sources of similarity and tests the relationship between workrelated similarities on similarity perceptions. Moreover, we explore the emotional and cognitive mechanisms behind the effects of similarity perceptions on job fit. We also propose and test a boundary condition, such that, when job desirability is low, the effect of demographic similarity on perceived similarity is reversed. The sample for the three studies consist of specialized master’s students with work experience in human resources management who acted as recruiters in a resume screening situation. The results show that the effects of similarity are not always positive for job fit perceptions. The studies provide evidence that when recruiters perceive applicants as similar to themselves, biased evaluations occur. Finally, we provide results that show the effects of mediation and moderation analysis whereby liking mediates the relationship between similarity perceptions and job fit perceptions through emotional, cognitive and motivational sequential mediators. Additionally, job desirability moderates the relationship between demographic similarity and similarity perceptions so that when job desirability is low, the effect of demographic similarity on perceived similarity is reversed

Proposing a Manager Profile that is Predictive of Employee Job-Embeddedness, Satisfaction, and Engagement

Numerous studies have been conducted on leader-member exchange (LMX) theory and its application to organizational growth and development with a focus on the quality of relationships between leaders and their employees. There is an opportunity to expand upon the theory and its application to the hospitality industry. Understanding that this industry focuses on service delivery, which is influenced by relationships between leaders and employees, hospitality organizations can benefit from understanding what attributes of leaders contribute to high quality LMX relationships with employees

Alter ego, state of the art on user profiling: an overview of the most relevant organisational and behavioural aspects regarding User Profiling.

This report gives an overview of the most relevant organisational and\ud behavioural aspects regarding user profiling. It discusses not only the\ud most important aims of user profiling from both an organisation’s as\ud well as a user’s perspective, it will also discuss organisational motives\ud and barriers for user profiling and the most important conditions for\ud the success of user profiling. Finally recommendations are made and\ud suggestions for further research are given

When Do People Trust Their Social Groups?

Trust facilitates cooperation and supports positive outcomes in social groups, including member satisfaction, information sharing, and task performance. Extensive prior research has examined individuals' general propensity to trust, as well as the factors that contribute to their trust in specific groups. Here, we build on past work to present a comprehensive framework for predicting trust in groups. By surveying 6,383 Facebook Groups users about their trust attitudes and examining aggregated behavioral and demographic data for these individuals, we show that (1) an individual's propensity to trust is associated with how they trust their groups, (2) smaller, closed, older, more exclusive, or more homogeneous groups are trusted more, and (3) a group's overall friendship-network structure and an individual's position within that structure can also predict trust. Last, we demonstrate how group trust predicts outcomes at both individual and group level such as the formation of new friendship ties.Comment: CHI 201