P. Heegaard

Publications169
h-index19
Citations1,416
Highly Influential Citations61
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QoE beyond the MOS: an in-depth look at QoE via better metrics and their relation to MOS
TLDR
We present other statistical tools that provide a much more comprehensive view of how quality is perceived by the users, and illustrate it all by analyzing the results of several subjective studies with these tools. Expand
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Definition of QoE Fairness in Shared Systems
TLDR
We propose a generic QoE fairness index which fulfils a number of desired properties, which on the other hand are not all fulfilled by using Jain’s fairness index. Expand
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Availability Modelling of Software-Defined Backbone Networks
TLDR
A quantitative assessment of the properties of SDN backbone networks to determine whether they can provide similar availability to the traditional IP backbone networks. Expand
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Differentiated Availability in Cloud Computing SLAs
TLDR
This paper focuses on the availability attribute of a cloud SLA, and develops a complete model for cloud data centers, including network. Expand
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The future of information security incident management training: A case study of electrical power companies
TLDR
We describe how training for responding to information security incidents is given low priority and that different types of personnel, such as business managers and technical personnel, have different perspectives and priorities in regard toinformation security. Expand
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Network survivability modeling
TLDR
We consider the survivability of a network with virtual connections exposed to link or node failures in network infrastructure and service platforms that are caused by undesired events that might be external or internal. Expand
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Network survivability under disaster propagation: Modeling and analysis
TLDR
We have modeled the survivability of an infrastructurebased wireless network in the presence of disaster propagation by a CTMC that incorporates the correlated failures caused by disaster propagation. Expand
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Modeling of Aggregated IoT Traffic and Its Application to an IoT Cloud
TLDR
We study the level of accuracy of the Poisson approximation model for IoT traffic and derive guidelines as to when a Poisson process can be assumed for aggregated periodic IoT traffic. Expand
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Video QoE killer and performance statistics in WebRTC-based video communication
TLDR
In this paper, we investigate session-related performance statistics of a Web-based Real-Time Communication (WebRTC) application called appear.in and explore how they may relate to users' Quality of Experience. Expand
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QoE beyond the MOS: Added value using quantiles and distributions
TLDR
We propose different statistical measures to express important aspects of QoE beyond MOS like user diversity, uncertainty of user rating distributions, ratio of dissatisfied users. Expand
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