Due to its low cost, robustness, flexibility and ubiquitous nature, cloud computing is changing the way entities manage their data. However, various privacy concerns arise whenever potentially sensitive data is outsourced to the cloud. This paper presents a novel approach for coping with such privacy concerns. The proposed scheme prevents the cloud server from learning any possibly sensitive pl...

This paper focuses on studying cloud storage data protection model and implementing encrypted storage of user data in double-key form. User data are encrypted with symmetric encryption algorithm and this secret key is encrypted with asymmetric encryption algorithm. The private key is managed and controlled by users. In this way, users guarantee the security of their own data with the sole priva...

To realize privacy data protection efficiently in hybrid cloud service, a hierarchical control architecture based multi-cluster MapReduce programming model (the Hierarchical MapReduce Model, HMR) is presented. Under this hierarchical control architecture, data isolation and placement among private cloud and public clouds according to the data privacy characteristic is implemented by the control...

Hypervisors using virtualization technology enable multiple operating systems to run on one physical server. Cloud computing model is less expensive because it streamlines the delivery of services by providing a stage for optimizing complex IT resources in a scalable manner with the help of virtualization technology and hypervisors. Selecting a suitable hypervisor for their organization’s priva...

Cloud computing appears as a new paradigm and its main objective is to provide secure, quick, convenient data storage and net computing service. Even though cloud computing effectively reduces the cost and maintenance of IT industry security issues plays a very important role. More and more IT companies are shifting to cloud based service like Private, Public and Hybrid cloud computing. But at ...

The fact that there is a lack of comparisons between methods for VPC management makes it important to evaluate fundamentally different methods. We have tried to find representatives of different ways of calculating the capacity distribution. A central approach uses global information about demands and resources [1, 2], while decentralised approaches can be categorised into iterative and local. ...

Verb-particle combinations (VPCs) consist of a verbal and a preposition/particle component, which often have some additional meaning compared to the meaning of their parts. If a data-driven morphological parser or a syntactic parser is trained on a dataset annotated with extra information for VPCs, they will be able to identify VPCs in raw texts. In this paper, we examine how syntactic parsers ...

Cost issue always is one of most important issue for enterprise in building their IT platform. With the advance of various cloud environments, enterprise’s IT executive may have different consideration in constructing their IT platform. For example, constructing an own cloud environment or renting a computing platform from cloud providers. This paper the authors, based on the Net Present Value ...

With dynamic trends and new developments in hardware and software, and the need to manage them efficiently, designing an Element Management System (EMS) for effective management of Network Element‟s (NE) is a challenging task. Small and medium businesses may not have the required skills or resources to manage their EMS. Large businesses may also want to use EMS services from skilled vendors. Wi...

With the proliferation of hybrid clouds in both cost-saving and effectiveness, a growing number of users are building their own private cloud. However, private cloud can only provide limited resource, and always resorts to public cloud in order to meet elastic service requirements. Generally, public cloud is operated by commercial service providers (CSPs) who are not completely honest with user...