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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
831

Untangling the Role of Brand Affect and Brand Trust in Marketing Research

Coleman, Megan K 01 January 2015 (has links)
Current marketing research suggests that two separate cognitive functions, rational "brand trust" and emotional "brand affect", work independently to influence brand loyalty and in turn, consumer purchasing. Yet, this idea is at off with a growing body of neuroeconomic research, which demonstrates the role of emotion in seemingly rational decisions.Here, we examine psychological, economic, and neuroscientrific research on how, along with the stand-alone effects of brand affect, emotion may influence brand trust, illustrating how these two seemingly separate functions may work in conjunction. First, we use psychological and economic theories such as the Somatic Marker Hypothesis, Affect-as-Information Theory, and Appraisal Tendency Theory to demonstrate that emotions have a large role in decision-making. Next we describe views from behavioral economics on how human decision-makers respond to uncertainty, drawing on frameworks, such as Prospect Theory and experimental findings like the Ellsberg paradox. Experimental findings suggest that people find the unknown emotionally aversive, both for uncertainty in outcomes (risk) and the range of possible outcomes (ambiguity). Risk- and ambiguity-aversion appear to arise from separate neural systems, suggesting that brand trust can increase affect by decreasing both perceived ambiguity and risk. Finally, we examine the marketing implications of the conclusion that affect and trust are interconnected. With the new perspective gained, marketers can better understand the mutually dependent relationship of brand affect and brand trust and begin to examine ways to capitalize on the clarification.
832

Predicting trust from user ratings

Korovaiko, Nikolay 13 December 2011 (has links)
Trust relationships between users in various online communities are notoriously hard to model for computer scientists. It can be easily verified that trying to infer trust based on the social network alone is often inefficient. Therefore, the avenue we explore is applying Data Mining algorithms to unearth latent relationships and patterns from background data. In this paper, we focus on a case where the background data is user ratings for online product reviews. We consider as a testing ground a large dataset provided by Epinions.com that contains a trust network as well as user ratings for reviews on products from a wide range of categories. In order to predict trust we define and compute a critical set of features, which we show to be highly effective in providing the basis for trust predictions. Then, we show that state-of-the-art classifiers can do an impressive job in predicting trust based on our extracted features. For this, we employ a variety of measures to evaluate the classification based on these features. We demonstrate that by carefully collecting and synthesizing readily available background information, such as ratings for online reviews, one can accurately predict trust-based social links. / Graduate
833

Normer och värderingar inom vänskap / Norms and Values within Friendship

Abrahamsson, Linda, Ramström, Linnéa January 2014 (has links)
Vilka normer och värderingar bidrar till en god vänskapsrelation? Ien kvalitativ undersökning intervjuades tre män och tre kvinnormellan 20-30 år. Respondenterna som rekryterades via ettbekvämlighetsurval svarade på 15 frågor om deras syn på vänskap.Resultatet visade att respondenterna hade vissa gemensamma svarsom delades upp efter följande teman; tillit, acceptans, intimitet.Vänskap visade sig ha en betydande roll för välmående eftersom detär en grundläggande del av människans liv. Studien visade även attdet ur ett genusperspektiv fanns förväntningar som skiljde sig åt i envänskapsrelation och att dessa skillnader grundade sig på normer ochvärderingar. Resultatet visade slutligen att normer och värderingargenom åren har skapats genom kulturen som har sin grund isamhället. / What kind of norms and values determine a good friendship? In aqualitative study three men and three women aged 20-30 years oldwere interviewed. The respondents who were recruited through aconvenience sampling were asked to answer questions concerningtheir view about friendship. After analyzing the interview protocol,three common themes were identified: trust acceptance and intimacy.Friendship showed to be a significant part when it came to people andtheir wellbeing. The study also showed that men and women haddifferent expectations for what that friendship will entail and thesedifferences were based on norms and values. It seems that norms andvalues are developed through the existing culture in society and inover time.
834

Trust Logics and Their Horn Fragments : Formalizing Socio-Cognitive Aspects of Trust

Nygren, Karl January 2015 (has links)
This thesis investigates logical formalizations of Castelfranchi and Falcone's (C&F) theory of trust [9, 10, 11, 12]. The C&F theory of trust defines trust as an essentially mental notion, making the theory particularly well suited for formalizations in multi-modal logics of beliefs, goals, intentions, actions, and time. Three different multi-modal logical formalisms intended for multi-agent systems are compared and evaluated along two lines of inquiry. First, I propose formal definitions of key concepts of the C&F theory of trust and prove some important properties of these definitions. The proven properties are then compared to the informal characterisation of the C&F theory. Second, the logics are used to formalize a case study involving an Internet forum, and their performances in the case study constitute grounds for a comparison. The comparison indicates that an accurate modelling of time, and the interaction of time and goals in particular, is integral for formal reasoning about trust. Finally, I propose a Horn fragment of the logic of Herzig, Lorini, Hubner, and Vercouter [25]. The Horn fragment is shown to be too restrictive to accurately express the considered case study.
835

Exploring interpersonal trust in the small business

Dibben, Mark R. January 1997 (has links)
This thesis explores the influences of different types of interpersonal trust on the development of the business enterprise, and builds in part on the author's MSc dissertation, which found interpersonal trust to play a key pert in the decision making process. A key feature of the research is a focus on the notion of becoming, rather than that of being; of change over static presence. The research acknowledges the basic truth of the statement 'only perception gives knowledge of things' and therefore adopts a broadly interpretative approach throughout. This is in keeping with the subjective nature of the trust concept. The thesis discusses the nature of trust from a primarily sociological standpoint and develops its models mainly from discussions of trust in the management and organization literature. The field studies, while conforming to these epistemological and ontological presuppositions, utilise three different methods: semi-structured, taped interviews; longitudinal participant observation case study; and verbal protocol analysis, in order to apply and refine the theory of trust developed and thereby come to an understanding of the role and importance of interpersonal trust in the business enterprise. The thesis finds that interpersonal situational trust is central to small business development, and may be usefully construed as an a posteriori tacit knowledge which the trusting party uses in order to fill gaps in his explicit knowledge of a situation, thereby reducing its complexity and enabling cooperation. The link between trust and co-operation is teased out, and it is suggested that trust overcomes an individual's co-operation threshold for a situation, as determined by a set of identifiable co-operation criteria, enabling co-operative behaviour on the part of the individual. The combination of co-operation threshold and trust level outcomes for each of the individuals in the situation is thus said to determine whether or not co-operation occurs between them. It is argued, therefore, that trust is a prerequisite for co-operation, and that the stronger, more resilient the situational trust, the more likely it is that cooperation will occur. The thesis finds that a useful distinction may be drawn between trust which is based on familiarity with the trusted party and trust which is based on familiarity with the situation in which the trusting interaction occurs. It finds that the development of the latter type, termed Comprehensible Situational Cue Reliance-Based Trust is perhaps of most importance with regard to the effect of trust on business development. The thesis applies a process theory derived from the work of the metaphysician Alfred North Whitehead to the theory of trust which it utilises, and finds that interpersonal situational trust may be considered as 'an actual occasion in concrescence', thereby offering the potential for a philosophical reconceptualisation of trust in terms of a process metaphysic, instead of the more static philosophical presuppositions which have historically tended to underpin its theoretical development. The thesis concludes by suggesting that trust is the medium through which the entrepreneur is able to create and extract value from the environment, emphasises the indicative (as opposed to definitive) nature of its exploration, and identifies a number of areas for further research, including matched international comparisons of businesses in order to verify the applicability of the theories and models which it develops.
836

A Metric for Anonymity based on Subjective Logic

Bni, Asmae January 2014 (has links)
Anonymity metrics have been proposed to evaluate anonymity preserving systems by estimating the amount of information displayed by these systems due to vulnerabilities. A general metric for anonymity that assess the latter systems according to the mass and quality of information learned by an attacker or a collaboration of attackers is proposed here. The proposed metric is based on subjective logic, a generalization of evidence and probability theory. As a consequence, we proved based on defined scenarios that our metric provide a better interpretation of uncertainty in the measure and it is extended to combine various sources of information using subjective logic operators. Also, we demonstrate that two factors: trust between collaborating attackers and time can influence significantly the metric result when taking them into consideration.
837

Investigating the requirements for an e-service that provide relevant online information for newly arrived immigrants in Sweden

Abdulrahim, Muhanad Adnan Abdulrahim January 2014 (has links)
There is a huge need for information when you arrive as an immigrant in a new country. The purpose of the study is to find out recommendations for an information portal for newly arrived immigrants in Sweden. First, a survey was conducted to the webmasters of relevant authorities online resources regarding their ways of considering the needs of immigrant users. The answers showed that the webmasters of the official websites showed interest in considering the needs of immigrants in their websites by including pages in different languages, but most of them considered this to be difficult, expensive and problematic. To know more about a particular user group, a survey, interviews and observations have been done. A survey to newly arrived immigrants showed that their ICT skills are comparable to the average of Swedish citizens. In spite of differences within the immigrant group, like age, gender and cultural factors, they also shared common characteristics. Most of the immigrants trusted Swedish websites and Swedish authorities websites as reliable information resources more than websites in their mother-tongue. Test-persons were faced with the task of finding information about the possibility to borrow money for furniture for the first home in Sweden, our observations showed that very few of the test-persons managed to find their way to the correct authority webpage (Studiemedels-nämnden). Most test-persons tried by using many ways to search for the information, but all except two gave up. None of the test-persons managed to find the pages that were translated to their mother-tongue. The study points out the need for a systematical approach to web information for newly arrived immigrants to help them with their integration process and benefit from Swedish e-government services. A central multilingual portal website should be the heart of this program. This approach can be introduced in SFI schools given that all SFI schools are supplied with computers.
838

Services Marketing in a Cross-Cultural Environment: Elekta in Germany

Dietrich, Katrina, Angelakis, Giorgos January 2014 (has links)
Abstract Title: Services Marketing in a Cross-Cultural Environment: Elekta in Germany Level: Master Thesis in Business Administration Author: Katrina Dietrich & Giorgos Angelakis Supervisor: Maria Fregidou-Malama Examiner: Akmal Hyder Date: 2014-January   Aim: This study aims to examine how culture, trust, network and standardization/adaption are applied within the Service Marketing of Elekta in Germany and if they overcome the characteristics of Services within a culturally different environment.   Method: The research uses qualitative data, applies a single case study, questionnaires and semi-structured interviews to collect primary data.   Result & Conclusions: The applied model shows that Elekta uses a balance between adaptation and standardization as well as applies trust and network under awareness and use of the German culture. These factors are used in combination and are influencing each other in order to create a homogeneous and tangible service.   Suggestions for future research: The case study indicates that one company is subject of the study in one country, hence generalization cannot be achieved. Therefore future research of other countries and other service industries can extend this research.   Contribution of the thesis: This research stresses the importance of culture, adaptation/ standardisation and trust and networks in cross-cultural services marketing of Elekta. It shows how heterogeneity and intangibility are influenced by the variable trust, network, adaptation/ standardization and culture.
839

Autoregression Models for Trust Management in Wireless Ad Hoc Networks

Li, Zhi 05 October 2011 (has links)
In this thesis, we propose a novel trust management scheme for improving routing reliability in wireless ad hoc networks. It is grounded on two classic autoregression models, namely Autoregressive (AR) model and Autoregressive with exogenous inputs (ARX) model. According to this scheme, a node periodically measures the packet forwarding ratio of its every neighbor as the trust observation about that neighbor. These measurements constitute a time series of data. The node has such a time series for each neighbor. By applying an autoregression model to these time series, it predicts the neighbors future packet forwarding ratios as their trust estimates, which in turn facilitate it to make intelligent routing decisions. With an AR model being applied, the node only uses its own observations for prediction; with an ARX model, it will also take into account recommendations from other neighbors. We evaluate the performance of the scheme when an AR, ARX or Bayesian model is used. Simulation results indicate that the ARX model is the best choice in terms of accuracy.
840

Examining the Relationship Between Academic Optimism and Student Achivement: A Multi-Level Approach

Hallmark, Bryan S 02 October 2013 (has links)
Academic optimism is a relatively new construct that combines collective efficacy, academic emphasis, and faculty trust in students and parents. The cumulative measure represents a robust picture of the social interactions within a school that influences the beliefs, behaviors and emotions of organizational members. Academic optimism has been established as a predictor of student achievement controlling for student socioeconomic status. However, past studies have not included student ethnicity in statistical models utilized to test the effect of academic optimism on student achievement, even though research and state achievement data show gaps among students of color and Anglo students that are just as substantial as those identified along socioeconomic. Additionally, there was a need to determine if academic optimism is simply a product of school context or if there is additional variance left to be explained by psychosocial interactions within schools. Therefore, the intent of this study was threefold: first, examine the relationships between the theoretical underpinnings of collective efficacy, academic emphasis, and faculty trust in students and parents; second, produce a more rigorous test of the effect of academic optimism on student achievement by including student ethnicity in addition to other student background characteristics; and third, determine to what magnitude school context explains a schools level of academic optimism. The author utilized multi-level analysis to test the relationship between school academic optimism and student achievement controlling for student ethnicity, socioeconomic status, previous achievement and school size within a new sample. The relationship between school academic optimism and school context was tested by employing multiple regression analysis. In a sample of 10,464 students nested within 97 elementary schools the author was able to determine that academic optimism is a positive predictor of student math and reading achievement. Furthermore, academic optimism is capable of mediating the negative relationships existing between both low socioeconomic status (SES) and student of color status and student achievement. Additionally, the studied revealed that only 52% of the variance in school level academic optimism is determined by school context.

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