Search for dissertations about: "cloud models"

Showing result 1 - 5 of 145 swedish dissertations containing the words cloud models.

2. 1. Performance problem diagnosis in cloud infrastructures

   Author : Olumuyiwa Ibidunmoye; Erik Elmroth; Guilliano Casale; Viktoria Fodor; Henrik Björklund; Umeå universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Systems Performance; Performance anomalies; Performance bottlenecks; Cloud infrastructures; Cloud Computing; Cloud Services; Cloud Computing Performance; Performance problems; Performance anomaly detection; Performance bottleneck identification; Performance Root-cause Analysis; Computer Systems; datorteknik; Computer Science; datalogi;

   Abstract : Cloud datacenters comprise hundreds or thousands of disparate application services, each having stringent performance and availability requirements, sharing a finite set of heterogeneous hardware and software resources. The implication of such complex environment is that the occurrence of performance problems, such as slow application response and unplanned downtimes, has become a norm rather than exception resulting in decreased revenue, damaged reputation, and huge human-effort in diagnosis. READ MORE

4. 2. Transition to Cloud Sourcing - Innovation and Competitive Advantage

   Author : Mirella Muhic; Innovationsteknik; []
   Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Cloud sourcing; Innovation; Competitive Advantage; Cloud continuance; Business relationships; Cloud sourcing; Business relationships; Innovation; Competitive advantage; Cloud continuance;

   Abstract : Looking into the topic of cloud sourcing, at first glance it might be seen as an off the shelf pay per use service that is easy and fast to adopt for most companies. Although in practice not all companies succeed with cloud sourcing. READ MORE

5. 3. Autonomous cloud resource provisioning : accounting, allocation, and performance control

   Author : Ewnetu Bayuh Lakew; Erik Elmroth; Hiaohui (Helen) Gu; Umeå universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; cloud computing; distributed infrastructure; monitoring; accounting; performance modeling; service differentiation; business data processing; administrativ databehandling;

   Abstract : The emergence of large-scale Internet services coupled with the evolution of computing technologies such as distributed systems, parallel computing, utility computing, grid, and virtualization has fueled a movement toward a new resource provisioning paradigm called cloud computing. The main appeal of cloud computing lies in its ability to provide a shared pool of infinitely scalable computing resources for cloud services, which can be quickly provisioned and released on-demand with minimal effort. READ MORE

6. 4. Energy-efficient cloud computing : autonomic resource provisioning for datacenters

   Author : Selome Kostentinos Tesfatsion; Johan Tordsson; Eddie Wadbro; Erik Elmroth; Laurent Lefevre; Umeå universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Cloud computing; datacenter; energy-efficiency; performance management; virtualization;

   Abstract : Energy efficiency has become an increasingly important concern in data centers because of issues associated with energy consumption, such as capital costs, operating expenses, and environmental impact. While energy loss due to suboptimal use of facilities and non-IT equipment has largely been reduced through the use of best-practice technologies, addressing energy wastage in IT equipment still requires the design and implementation of energy-aware resource management systems. READ MORE

7. 5. Aerosol-cloud-radiation interactions in global climate models

   Author : Lena Frey; Frida A.-M. Bender; Gunilla Svensson; Laura Wilcox; Stockholms universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Aerosols; clouds; global climate models; atmosfärvetenskap och oceanografi; Atmospheric Sciences and Oceanography;

   Abstract : Clouds can reflect, absorb and re-emit radiation, thereby inducing a cooling or warming effect on the climate. However, the response of clouds to a changing climate is highly uncertain and the representation of clouds in state-of-the-art climate models remains a key challenge for future climate projections. READ MORE