Protecting systems, applications and data hosted on a Cloud environment against cyber-threats, and accounting for security incidents across the Cloud estate are prerequisites to Cloud adoption by business, and a fundamental element of both national and corporate cyber-security and Cloud strategies. Yet, Cloud IaaS and PaaS providers typically hold Cloud consumers accountable for protecting thei...

Cloud computing has become one of the hottest topics in the IT world today. Its model of computing as a resource has changed the landscape of computing as we know it, and its promises of increased flexibility, greater reliability, massive scalability, and decreased costs have enchanted businesses and individuals alike. Cloud computing, as defined by NIST, is a model for enabling always-on, conv...

Big data has been arising a growing interest in both scien- tific and industrial fields for its potential value. However, before employing big data technology into massive appli- cations, a basic but also principle topic should be investigated: security and privacy. One of the biggest concerns of big data is privacy. However, the study on big data privacy is still at a very early stage. Many or...

The project is about agent‐based Inter Cloud economic model for bolstering consumer -to-cloud negotiation and cloud-to cloud negotiation was first raised this work offers a solution to this new and challenging problem by devising 1) novel protocols that specify the rules of interaction between consumer agents and Cloud agents, and among Cloud agents, and 2) novel strategies that guide consumer ...

[1] We report results of a cloud chemistry numerical modeling intercomparison, which shows good agreement among gas-aqueous photochemistry box models that are being used in the community. For the case studied, cloud chemistry depleted concentrations of CH2O, CH3OOH, HNO3, and O3, while H2O2 (in the absence of sulfur chemistry), NO, and NO2 increased. Because parcels of air usually flow in and o...

Cloud computing is the new paradigm to deliver all the hosted services over internet on demand. The ultimate goal of cloud computing paradigm is to realize computing as a utility. The cloud is rapidly maturing towards its goal to support a wide variety of enterprise and consumer services and real-world applications. Recently a movement towards cross cloud also called as multi-clouds or inters c...

Cloud computing promises to significantly change the way we use computers and access and store our personal and business information. With these new computing and communications paradigms arise new data security challenges. Existing data protection mechanisms such as encryption have failed in preventing data theft attacks, especially those perpetrated by an insider to the cloud provider. The us...

Recently, cloud computing platforms, such as Microsoft Azure, are available to provide convenient infrastructures such that cloud applications could conduct cloud and data-intensive computing. To ensure high quality of cloud applications under development, developer testing (also referred to as unit testing) could be used. The behavior of a unit in a cloud application is dependent on the test i...

This paper uses spaceborne lidar data to study how near-cloud aerosol statistics of attenuated backscatter depend on cloud fraction. The results for a large region around the Azores show that (1) far-from-cloud aerosol statistics are dominated by samples from scenes with lower cloud fractions, while near-cloud aerosol statistics are dominated by samples from scenes with higher cloud fractions; ...