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Chapter and Conference Paper
A Keyword Extraction Scheme from CQI Based on Graph Centrality
Recently, most of the universities in Korea is doing a lecture evaluation survey every semester. The continuous quality improvement (CQI) report is one of the most popular lecture evaluation service systems, w...
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Article
Byzantine-resilient dual gossip membership management in clouds
In this paper, we present an effective and efficient Byzantine-resilient dual membership management technique in cloud environments, in which nodes are prone to churn and the network topology is not fully conn...
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Article
An efficient distributed mutual exclusion algorithm for intersection traffic control
As vehicular networking has recently been developed and commercialized, vehicular cloud computing has received much attention in various research areas, such as intelligent transportation systems and vehicular...
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Article
Open AccessA slave ants based ant colony optimization algorithm for task scheduling in cloud computing environments
Since cloud computing provides computing resources on a pay per use basis, a task scheduling algorithm directly affects the cost for users. In this paper, we propose a novel cloud task scheduling algorithm bas...
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Chapter and Conference Paper
Sensor Coverage Problem in Sparse MANET Environments
In this paper, we define the problem of sensor coverage in sparse mobile ad hoc networks. Previously, the nodes are assumed static or the number of nodes is large enough to cover the area for the coverage prob...
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Chapter and Conference Paper
Effects on Map** the VCPUs to the Physical CPUs in Para-Virtualization
Virtualization is to provide virtually all types of technologies used on the physical PC. However, in a virtualization technique, services can be modified and adjusted to satisfy user requirements, the cost of...
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Article
Scalable and leaderless Byzantine consensus in cloud computing environments
Traditional Byzantine consensus in distributed systems requires n ≥ 3f + 1, where n is the number of nodes. In this paper, we present a scalable and leaderless Byzantine consensus implementation based on gossip, ...
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Chapter and Conference Paper
A Workflow Scheduling Technique to Consider Task Processing Rate in Spot Instance-Based Cloud
Cloud computing is a computing paradigm in which users can rent computing resources from service providers according to their requirements. A spot instance in cloud computing helps a user to obtain resources a...
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Chapter and Conference Paper
A Study on Performance Comparison of Cloud Architectures Using Nested Virtualization
In recent years, cloud computing has become a significant technology trend because of various advantages including cost savings, flexibility, high availability, and scalability using virtualization technology....
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Chapter and Conference Paper
A Workflow Scheduling Technique for Task Distribution in Spot Instance-Based Cloud
The cloud computing is a computing paradigm that users can rent computing resources from service providers as much as they require. A spot instance in cloud computing helps a user to utilize resources with les...
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Chapter and Conference Paper
Gossip Membership Management with Social Graphs for Byzantine Fault Tolerance in Clouds
As computer systems have become more complex and dynamic, unstructured and decentralized techniques serve as basic building blocks in large-scale systems such as cloud computing systems. In particular, we cons...
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Chapter and Conference Paper
An Unstructured Termination Detection Algorithm Using Gossip in Cloud Computing Environments
Determining termination in dynamic environments is hard due to node joining and leaving. In previous studies on termination detection, some structures, such as spanning tree or computational tree, are used. In...
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Chapter and Conference Paper
A Deadlock Detection Algorithm Using Gossip in Cloud Computing Environments
To detection deadlock in distributed systems, the initiator should construct a global wait-for graph in an efficient way. In this paper, we present a deadlock detection algorithm using gossip for cloud computi...
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Chapter and Conference Paper
A Termination Detection Technique Using Gossip in Cloud Computing Environments
Termination detection is a fundamental problem in distributed systems. In previous research, some structures are used (e.g., spanning tree or computational tree) to detect termination. In this work, we present...
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Chapter and Conference Paper
A Gossip-Based Mutual Exclusion Algorithm for Cloud Environments
Mutual exclusion is a salient feature in distributed computing systems whereby concurrent access of processors to a shared resource is granted in a mutually exclusive manner. The primary aim of this study is t...
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Chapter and Conference Paper
Group-Based Gossip Multicast Protocol for Efficient and Fault Tolerant Message Dissemination in Clouds
Cloud computing is an Internet-based computing paradigm that provides services in a virtualized form composed of plenty of sharable resources. In cloud computing environments, gossip protocols are engaged as a...
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Chapter and Conference Paper
Mobile Grid System Based on Mobile Agent
Mobile Grid is a branch of Grid where the infrastructure includes mobile devices. The mobile Grid exhibits different challenges such as resource-constraints and users’ movements, compared to the traditional Gr...
