Mu, Mu and Mauthe, Andreas and Tyson, Gareth and Cerqueira, Eduardo (2012) Statistical analysis of ordinal user opinion scores. In: IEEE Consumer Communications and Networking Conference (CCNC), 2012. IEEE, pp. 331-336. ISBN 978-1-4577-2070-3Full text not available from this repository.
Data-sets derived from subjective experiments are often exploited to construct objective quality models using parametric statistics such as MOS and multiple regression. In this paper, using data type and normality tests, we verify that non-normally distributed user opinion scores in nominal or ordinal responses should not be analysed using parametric statistics. The paper introduces a number of non-parametric statistics for valid model building and parameter estimation based on user opinion scores. A set of modelling results are also presented to demonstrate the effectiveness of non-parametric statistics.
|Item Type:||Contribution in Book/Report/Proceedings|
|Subjects:||Q Science > QA Mathematics > QA75 Electronic computers. Computer science|
|Departments:||Faculty of Science and Technology > School of Computing & Communications|
|Deposited On:||17 Apr 2012 09:22|
|Last Modified:||10 Apr 2014 01:00|
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