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In this paper, we describe an Over-The-Top (OTT) video Quality of Experience (QoE) subjective evaluation experiment that was carried out to examine variations in the way subjects assess viewing experiences. The experiment focuses on different level of impairment and failure types, using 5-point measurement scales. Clustering is used to differentiate between unreliable and reliable participants, where...
In this paper we examine the reliability of subjective rating judgments along a single dimension, focusing on estimates of technical quality produced by integrity impairments and failures (non-accessibility, and non-retainability) associated with viewing video. There is often considerable variability, both within and between individuals, in subjective rating tasks. In the research reported here we...
The rapidly increasing variability in circuit performance in highly scaled technologies has given rise to novel “better-than-worst-case” circuit design methods. They aim to overcome worst-case clock timing requirements by employing a shorter clock period and allowing occasional errors to occur; these are detected and recovered from by low-cost error detection and correction techniques. We investigate...
A method of fault line selection was proposed based on fault grounded point transfer and wavelet transform in small-current neutral grounding system in this paper. Phase-separation vacuum circuit breaker was installed in the busbar and realize fault grounded point transfer through vacuum breaker of fault phase when single-phase-to-ground fault occurs. Thus zero-sequence current of fault line will...
The consistency test between prior information and field information using parametric method is investigated. A method to compute fitting goodness is presented. The case when there are multi-source prior information is discussed. Based on the fitting goodness, a new method is provided to determine the weighting factor of each prior distribution. Corresponding analysis is performed, when the product...
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