Sensitivity analysis techniques applied in cloud computing environments

Melo, Rosangela Maria de; Dantas, Jamilson; Matos, Rubens; Filho, Ivanildo José de Melo; Oliveira, Aline Santana; Feliciano, Fabio Denilson de Oliveira; Maciel, Paulo

doi:10.23919/cisti.2017.7975950

Cited by 13 publications

(17 citation statements)

References 11 publications

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“…A broad view of the components of the VoD service architecture is seen in Figure 1 (Melo et al, 2017).…”

Section: System Architecturementioning

confidence: 99%

“…Three case studies were designed to analyze the system availability (Melo et al, 2017). The case studies can be summarized as follows: i) Case Study I: availability analysis of architecture.…”

Section: Case Studiesmentioning

confidence: 99%

“…Those values were obtained from Melo et al (2017) and Kim et al (2009). Table 1 presents the parameters for the blocks of the RBD model for the structure shown in the Figure 2.…”

Section: Case Study Imentioning

confidence: 99%

“…Table 1 presents the parameters for the blocks of the RBD model for the structure shown in the Figure 2. The values of MTTF and MTTR of the Frontend and volume modules are based on Dantas et al (2012) and Melo et al (2017). The availability of the Service module is computed from the CTMC depicted in Figure 3.…”

Section: Case Study Imentioning

confidence: 99%

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Sensitivity Analysis Techniques Applied in Video Streaming Service on Eucalyptus Cloud Environments

Melo

Dantas

Matos

et al. 2018

Journal of Information Systems Engineering & Management

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Nowdays, several streaming servers are available to provide a variety of multimedia applications such as Video on Demand in cloud computing environments. These environments have the business potential because of the pay-per-use model, as well as the advantages of easy scalability and, up-to-date of the packages and programs. This paper uses hierarchical modeling and different sensitivity analysis techniques to determine the parameters that cause the greatest impact on the availability of a Video on Demand. The results show that distinct approaches provide similar results regarding the sensitivity ranking, with specific exceptions. A combined evaluation indicates that system availability may be improved effectively by focusing on a reduced set of factors that produce large variation on the measure of interest.

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“…A broad view of the components of the VoD service architecture is seen in Figure 1 (Melo et al, 2017).…”

Section: System Architecturementioning

confidence: 99%

Section: Case Studiesmentioning

confidence: 99%

“…Those values were obtained from Melo et al (2017) and Kim et al (2009). Table 1 presents the parameters for the blocks of the RBD model for the structure shown in the Figure 2.…”

Section: Case Study Imentioning

confidence: 99%

Section: Case Study Imentioning

confidence: 99%

See 2 more Smart Citations

Sensitivity Analysis Techniques Applied in Video Streaming Service on Eucalyptus Cloud Environments

Melo

Dantas

Matos

et al. 2018

Journal of Information Systems Engineering & Management

Self Cite

View full text Add to dashboard Cite

show abstract

“…Model for Architecture RBD and CTMC models were used to represent the subsystems of the architectures presented in Figure 1. These models are then combined, constituting a hierarchical model [28]. The architecture can be divided into three parts: Frontend, Node and Service, which are represented by the RBD model depicted in Volume subsystem is allocated in the frontend for storing by a CTMC (see Figure 3), which allows to compute availability values to be considered top-level in the RBD.…”

Section: Sensitivity Analysismentioning

confidence: 99%

Evaluation of a Cloud Computing Environment by different Strategies of Sensitivity Analysis

Melo

Dantas

Matos

et al. 2017

JADI

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been generating debate and interest within IT corporations. These cloud computing environments provide storage and pro-cessing services such as Video Streaming. Recent failure events in Video Streaming services have demonstrated the critical importance of maintaining high availability in cloud computing infrastructures. One of the methods used to identify the trends of occurrences of of strategies of sensitivity analysis. This paper uses hierarchical modeling and different sensitivity analysis techniques to determine the parameters that cause the greatest impact on the availability exceptions. A combined evaluation indicates that system availability may be improved effectively by focusing on a reduced set of factors that produce large variation on the measure of interest.

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A Contemporary Survey on Live Video Streaming from a Computation-Driven Perspective

Dao

Tran

et al. 2022

ACM Comput. Surv.

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Live video streaming services have experienced significant growth since the emergence of social networking paradigms in recent years. In this scenario, adaptive bitrate streaming communications transmitted on web protocols provide a convenient and cost-efficient facility to serve various multimedia platforms over the Internet. In these communication models, video content is delivered optimally, possibly transcoded, edited automatically, and cached temporarily by network elements along the path. To this end, the computational capabilities of various network elements are considered as major resources to be optimized for service quality improvements. This paper provides a contemporary survey of cutting-edge live video streaming studies from a computation-driven perspective. First, an overview of the global standards, system architectures, and streaming protocols is presented. Next, hierarchical computation-driven models of live video streaming are anatomized, including cloud-, edge-, and peer-to-peer-based solutions. Cutting-edge studies are then reviewed to discover the advances they have made in improving system performance in multiple aspects. Finally, open challenges are presented to direct future research in this field.

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Sensitivity analysis techniques applied in cloud computing environments

Cited by 13 publications

References 11 publications

Sensitivity Analysis Techniques Applied in Video Streaming Service on Eucalyptus Cloud Environments

Sensitivity Analysis Techniques Applied in Video Streaming Service on Eucalyptus Cloud Environments

Evaluation of a Cloud Computing Environment by different Strategies of Sensitivity Analysis

A Contemporary Survey on Live Video Streaming from a Computation-Driven Perspective

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