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http://dx.doi.org/10.3837/tiis.2015.02.020

Formal Trust Assessment with Confidence Probability  

Kutay, Mahir (Department of Computer Engineering, Yasar University)
Ercan, Tuncay (Department of Computer Engineering, Yasar University)
Publication Information
KSII Transactions on Internet and Information Systems (TIIS) / v.9, no.2, 2015 , pp. 830-842 More about this Journal
Abstract
Trust and trustworthiness of web services and organizations is calculated as scalar values. But there is still a certain level of risk for the overall reliability of this value. In this article, we focus on calculating trust values as intervals between upper and lower bounds based on predefined confidence values through an additional confidence probability. This will give us a more realistic approach to the trust assessments between individuals and organizations. We also developed a web-based software tool, TAST (Trust Assessment Software Tool) that collects the web services' evaluation of different customer groups for similar organizations through the user interface and calculates the trust intervals for predefined and previously selected confidence values. Our model uses a weighted calculation of mean and variances of customer groups in specific periods and analyses the total and incremental trust of different customer groups.
Keywords
Trust and trustworthy; reliability; confidence probability; TAST;
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