How to better conduct research resource scheduling has long been a research direction of cloud computing. This paper, aiming at slow convergence and easiness of falling local optimum of ant colony algorithm,has integrated genetic algorithm into the ant colony algorithm and obtained hybrid algorithm (ACA -GA); in the initial solution of the ant colony algorithm, it has adopted selection, crossov...

The distinctive advantages of the clouds have attracted the attention of many organizations, but the aspect leading to hesitation of these organizations is the method used for securing the data in the clouds and insuring about the security of the environment. By entrance of computers to human life and its development, the security has always been an issue. In this content, various schemes have ...

Cloud Computing is developed and used by all enterprise in world to outsource their data. To maintain confidentiality of shared data against entrusted party encryption of data is important. Many scheme is introduced to achieve security of outsource data in cloud .But they fails to achieve data integrity in cloud. Sometimes entrusted cloud service provider modifies or deletes the data without ge...

With the fast development of cloud computing and its wide application, data security plays an important role in cloud computing. This paper brought up a novel data security strategy based on artificial immune algorithm on architecture of HDFS for cloud computing. Firstly, we explained the main factors influence data security in cloud environment. Then we introduce HDFS architecture, data securi...

In the face of a large number of task requests which are submitted by users, the cloud data centers need not only to finish these massive tasks but also to satisfy the user's service demand. How to allocate virtual machine reasonably and schedule the tasks efficiently becomes a key problem to be solved in the cloud environment. This paper proposes a ACO-LB(Load balancing optimization algorithm ...

Cloud computing is one of the latest and upcoming paradigm that offers huge benefits such as reduced time to market, unlimited computing power and flexible computing capabilities. It is a model that provides an on-demand network access to a shared pool of computing resources It comprises a large number of concepts primarily Load Balancing, Scheduling, etc. This paper discusses load balancing as...

Cloud computing has revolutionized the information technology industry by enabling elastic on demand provisioning of computing resources. Cloud data centers consume enormous amounts of electrical energy resulting in high operating costs and carbon dioxide emissions. The goal is to improve the utilization of computing resources and reduce energy consumption under workload independent quality of ...

A very efficient computing environment is provided by cloud computing where the customers or several tenants are in need of multiple resources to be provided as a service over the internet. The challenge before the cloud service provider is, how efficiently and effectively the underlying computing resources like virtual machines, network, storage units, and bandwidth etc. should be managed so t...

Task scheduling in cloud environment is a key technical problem on how to allocate available cloud resources to cloud users. Usually, a task in cloud environment can be cut into a serials of subtasks, which have precedence and dependency relationships among themselves. We describe the problem by means of a DAG (Directed Acyclic Graph) model. Then, we propose a priority algorithm for DAG task sc...

Cloud computing is a style of computing in which dynamically scalable and other virtualized resources are provided as a service over the Internet. The energy consumption and makespan associated with the resources allocated should be taken into account. This paper proposes an improved clonal selection algorithm based on time cost and energy consumption models in cloud computing environment. We h...