Interest in cloud computing has grown significantly over the past few years both in the commercial and non-profit sectors. In the commercial sector, various companies have advanced economic arguments for the installation of cloud computing systems to service their clients’ needs. This paper focuses on non-profit educational institutions and analyzes some operational data from the Virtual Comput...

When the Melitz model is implemented in practice, the industrial productivity distribution is often assumed to be of Pareto form. In this case, a fundamental relationship κ > σ − 1must hold to guarantee the convergence of the industrial average productivity, where κ is the concentration degree of the industrial productivity Pareto distribution and σ is the substitution elasticity across varieti...

The cloud computing paradigm promises to provide flexible IT services delivered via the internet. The cost efficiency of cloud computing services is mainly enabled by a high degree of automation realized by SLAs and minor direct human interaction. In this paper, we analyze eight expert interviews to identify and discuss the different levels of trust from an end-user perspective (trust in mediat...

To ease the analysis of potentially malicious programs, dynamic behavior-based techniques have been proposed in the literature. Unfortunately, these techniques often give incomplete results because the execution environments in which they are performed are synthetic and do not faithfully resemble the environments of end-users, the intended targets of the malicious activities. In this paper, we ...

Cloud is one of the most common interferers in Moderate Resolution Imaging Spectrum-radiometer (MODIS) remote sensing imagery. Because of cloud interference, much important and useful information covered by cloud cannot be recovered well. How to detect and remove cloud from MODIS imagery is an important issue for wide application of remote sensing data. In general, cloud can be roughly divided ...

Cloud computing supplies software, platforms, and infrastructures as a service (abbr. SaaS, PaaS, and IaaS, respectively) over a network connection. From a user’s perspective, resource efficiency and scalability can be improved through aligning a cloud-based application with the cloud environment. Running an existing software system on a cloud computing basis usually involves extensive reengine...

Twenty first century is known as the era of technology. In the technology of computing it is an era of cloud computing. Cloud computing is the most recent technology in today's world of computing and its become more popular day by day due to its great feature (resource pooling, rapid elasticity, scalability, efficiency and on demand service). Cloud computing is built on the base of distributed ...

Now a days, cloud computing has been an emerging concept in the IT industry. Cloud computing is not a new technology but is a new way of using or delivering the resources. It also enhances the efficiency of computation by providing the facility of centralized database, memory processing and on demand network access. This paper examines the different categories of risks which can be controlled o...

In order to keep the confidential data in the cloud against unauthorized parties, a cryptographic access control solution based on Attribute-Based Encryption (ABE) and Identity-Based Signature (IBS) is introduced in this paper. Under the premise that cloud service provider is untrustful, the proposed scheme can ensure the data security of the cloud storage system in an open environment, as well...