The Need for Affective Trust Applied to Trust and Reputation Models

Abstract

Trust allows the behavior evaluation of individuals by setting confidence values, which are used in decisions about whether or not to interact. They have been used in several fields, and many trust and reputation models were developed recently. We perceived that most of them were built upon the numeric and cognitive paradigms, which do not use affective aspects to build trust or help in decision making. Studies in psychology argued that personality, emotions, and mood are important in decision making and can change the behaviors of individuals. Based on that, we present links between trust and affective computing, showing relations of trust dimensions found in trust models with affective aspects, and presenting why affective computing approaches fit trust issues often addressed by research in this field. We also discuss trust relationships and decision making, emotions, and personality. Affective computing concepts have been used in a dispersed way and specifically in some models, so we aim to bring them together to encourage the growth of fuller trust models similar to those used by humans. We aim to find relations between both fields so it will be possible to employ such concepts to develop trust models using this new paradigm, defined as the affective paradigm.

Privacy Protection and Data Security in Cloud Computing: A Survey, Challenges, and Solutions

“…Trust and reputation (TR) are important considerations for cloud service adoption and are closely related to privacy protection [119]. Cloud computing system requires users' trust and reputation-related information to be fully disclosed, which will bring hidden risk to users' privacy ( Fig.…”

“…It's a popular technology for privacy protection research. Recently, there have been many achievements of trust-based privacy protection in academia [119], [120].…”

Inferring Trust Using Personality Aspects Extracted from Texts

“…Essentially, it involves conscious decisions about trust partners based on competence, responsibility, and dependence [18], [19], [20], [21]. Conversely, affective trust is related to affective content among individuals [22], [19], [3].…”

“…Personality is the affective state with longer duration, and it can last for years or even a lifetime [25], for this reason, it is essential in long-term social interactions since it contributes to consistent behaviors [3]. Regarding computers, one of the most used personality theories is the Big Five Model [7], which is composed of five traits: extraversion, agreeableness, conscientiousness, neuroticism, and openness [6].…”

“…The affective paradigm was introduced to fill this gap, which uses affective data to aid in trust computation [3]. An example of this paradigm is presented by [4], where the reputation of items (hotels and books) is calculated based on the emotions extracted from text reviews.…”