A New Methodology of QoS Evaluation and Service Selection for Ubiquitous Computing

Zhang, Yong; Zhang, Shensheng; Han, Songqiao

doi:10.1007/11814856_9

Cited by 14 publications

(19 citation statements)

References 13 publications

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“…3. This was inspired by the work of [3], [4], in which the authors used sigmf and gaussmf membership functions to map various parameters, such as the network's bandwidth and latency, to quality values between 0 and 1. By varying the values of α and β, it is possible to create a family of curves that have the same behavior.…”

Section: Transport Quality Evaluationmentioning

confidence: 99%

Quality Prediction-Based Dynamic Content Adaptation Framework Applied to Collaborative Mobile Presentations

Louafi

Coulombe

Chandra

2013

IEEE Trans. on Mobile Comput.

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Abstract-Today, professional documents, created in applications such as PowerPoint and Word, can be shared using ubiquitous mobile terminals connected to the Internet. GoogleDocs and EasyMeet are good examples of such collaborative Web applications dedicated to professional documents. The static adaptation of professional documents has been studied extensively. Dynamic adaptation can be very useful and practical for interactive multimedia applications, because it allows the delivery of highly customized content to the end-user without the need to generate and store multiple transcoded versions. In this paper, we propose a dynamic framework that enables us to estimate transcoding parameters on the fly in order to generate near-optimal adapted content for each user. The framework is compared to current dynamic methods as well as to static adaptation solutions. We show that the proposed framework provides a better trade-off between quality and storage compared to other static and dynamic approaches. To quantify the quality of the adapted content, we introduce a measure of the quality of the experience based on its visual quality of the adapted content, as well as on the impact of its total delivery time. The framework has been tested on (but is not limited to) OpenOffice Impress presentations.

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Section: Transport Quality Evaluationmentioning

confidence: 99%

Quality Prediction-Based Dynamic Content Adaptation Framework Applied to Collaborative Mobile Presentations

Louafi

Coulombe

Chandra

2013

IEEE Trans. on Mobile Comput.

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“…In the area of static content adaptation different versions of the original content are created and stored on a server [24,22,20,11,34]. At runtime, when the content is requested, the optimal version, evaluated using a specific quality criterion, is selected for delivery.…”

Section: Static and Dynamic Adaptationmentioning

confidence: 99%

“…We therefore propose to evaluate transport quality using a normalization Z-shaped built-in membership function (Zmf) [31]. This was inspired by the work of [20,34], in which the authors used the sigmf and gaussmf membership functions to normalize various parameters, such as the network bandwidth and latency. This function, (Zmf), expresses the end-user's appreciation of (or frustration with) the adapted content, as a function of the wait time, in terms of a behavior.…”

Section: Transport Quality Evaluationmentioning

confidence: 99%

Robust QoE-aware prediction-based dynamic content adaptation framework applied to slides documents in mobile Web conferencing

Louafi

Coulombe

Chandra

2014

Multimed Tools Appl

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In mobile Web conferencing, enterprise documents are generally adapted into JPEG-based Web pages to be visualized on mobile devices. Dynamically identifying the optimal adapted content is very challenging, as a compromise between high visual quality and small delivery time must be made. In this paper, we propose a robust prediction-based dynamic content adaptation framework for JPEG and XHTML formats that computes near-optimal transcoding parameters dynamically with very few computations. The proposed framework is comprised of five methods making different compromises between computational complexity and accuracy. For JPEG, the average deviation from optimality (exhaustive method) is 6% and 3% respectively for two of the proposed methods. For XHTML, the average deviation from optimality is 3% and 1% respectively using the same two methods. Moreover, the methods reached optimality 30% and 59% of the time on the tested documents for JPEG and XHTML respectively, which makes the proposed framework very appealing.

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“…For example, Liu and Jin propose fuzzy analytic hierarchy process to define the weight factor of QoS [9]. Zhang et al design a user preference model based on linguistic variable and apply a hierarchical fuzzy logic evaluation [10]. Chen et al adopt Fuzzy Multiple Criteria Decision Making (FMCDM) approach to capture how customers make their evaluation of services more effectively [11].…”

Section: Introductionmentioning

confidence: 99%

“…Mon applies entropy weight to model objective significance of the criteria by fuzzy analytic hierarchy process [13]. These studies [3][4][5][6][7][8][9][10][11][12][13] motivate the research work presented in this paper.…”

Section: Introductionmentioning

confidence: 99%

QoS-Aware Web Service Selection by a Synthetic Weight

Xiong

Fan

2007

Fourth International Conference on Fuzzy Systems and Knowledge Discovery (FSKD 2007)

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A New Methodology of QoS Evaluation and Service Selection for Ubiquitous Computing

Cited by 14 publications

References 13 publications

Quality Prediction-Based Dynamic Content Adaptation Framework Applied to Collaborative Mobile Presentations

Quality Prediction-Based Dynamic Content Adaptation Framework Applied to Collaborative Mobile Presentations

Robust QoE-aware prediction-based dynamic content adaptation framework applied to slides documents in mobile Web conferencing

QoS-Aware Web Service Selection by a Synthetic Weight

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