Skip to main content

Research Repository

Advanced Search

All Outputs (182)

Grid Routing: An Energy-Efficient Routing Protocol for WSNs with Single Mobile Sink (2016)
Conference Proceeding
Liu, Q., Zhang, K., Liu, X., & Linge, N. (2016). Grid Routing: An Energy-Efficient Routing Protocol for WSNs with Single Mobile Sink. In Cloud Computing and Security (232-243). https://doi.org/10.1007/978-3-319-48674-1_21

In a traditional wireless sensor network with static sinks, sensor nodes close to the sink run out of their batteries quicker than other nodes due to the increased data traffic towards the sink. These nodes with huge data traffic are easy to become h... Read More about Grid Routing: An Energy-Efficient Routing Protocol for WSNs with Single Mobile Sink.

Pricing Ontology for Task-Oriented Cloud Sourcing (2016)
Conference Proceeding
Greenwell, R., Liu, X., & Chalmers, K. (2016). Pricing Ontology for Task-Oriented Cloud Sourcing. In 2016 IEEE 4th International Conference on Future Internet of Things and Cloud (FiCloud). https://doi.org/10.1109/ficloud.2016.17

Cloud computing allows access to computing resources from a number of providers, who offer multiple pricing strategies for selected product characteristics. The service offerings are becoming increasingly complex, with innovations such as spot market... Read More about Pricing Ontology for Task-Oriented Cloud Sourcing.

Estimation Accuracy on Execution Time of Run-Time Tasks in a Heterogeneous Distributed Environment (2016)
Journal Article
Liu, Q., Cai, W., Jin, D., Shen, J., Fu, Z., Liu, X., & Linge, N. (2016). Estimation Accuracy on Execution Time of Run-Time Tasks in a Heterogeneous Distributed Environment. Sensors, 16(9), 1386. https://doi.org/10.3390/s16091386

Distributed Computing has achieved tremendous development since cloud computing was proposed in 2006, and played a vital role promoting rapid growth of data collecting and analysis models, e.g., Internet of things, Cyber-Physical Systems, Big Data An... Read More about Estimation Accuracy on Execution Time of Run-Time Tasks in a Heterogeneous Distributed Environment.

A speculative approach to spatial-temporal efficiency with multi-objective optimization in a heterogeneous cloud environment (2016)
Journal Article
Liu, Q., Cai, W., Shen, J., Fu, Z., Liu, X., & Linge, N. (2016). A speculative approach to spatial-temporal efficiency with multi-objective optimization in a heterogeneous cloud environment. Security and Communication Networks, 9(17), 4002-4012. https://doi.org/10.1002/sec.1582

A heterogeneous cloud system, for example, a Hadoop 2.6.0 platform, provides distributed but cohesive services with rich features on large-scale management, reliability, and error tolerance. As big data processing is concerned, newly built cloud clus... Read More about A speculative approach to spatial-temporal efficiency with multi-objective optimization in a heterogeneous cloud environment.

DEEPC: Dynamic Energy Profiling of Components (2016)
Conference Proceeding
Liu, X., Chinenyeze, S. J., & Al-Dubai, A. (2016). DEEPC: Dynamic Energy Profiling of Components. In 2016 IEEE 40th Annual Computer Software and Applications Conference (COMPSAC). https://doi.org/10.1109/COMPSAC.2016.90

Many software projects are built using reusable components (i.e. reusable objects - as per component and connectors in software architectures). During component selection in CBSD, components are evaluated on the criteria of required quality attribute... Read More about DEEPC: Dynamic Energy Profiling of Components.

A Classification and Comparison Framework for Cloud Service Brokerage Architectures (2016)
Journal Article
Fowley, F., Pahl, C., Jamshidi, P., Fang, D., & Liu, X. (2016). A Classification and Comparison Framework for Cloud Service Brokerage Architectures. IEEE Transactions on Cloud Computing, 6(2), 358-371. https://doi.org/10.1109/tcc.2016.2537333

Cloud service brokerage and related management and marketplace concepts have been identified as key concerns for future cloud technology development and research. Cloud service management is an important building block of cloud architectures that can... Read More about A Classification and Comparison Framework for Cloud Service Brokerage Architectures.

An agility-oriented and fuzziness-embedded semantic model for collaborative cloud service search, retrieval and recommendation (2015)
Journal Article
Fang, D., Liu, X., Romdhani, I., Jamshidi, P., & Pahl, C. (2016). An agility-oriented and fuzziness-embedded semantic model for collaborative cloud service search, retrieval and recommendation. Future Generation Computer Systems, 56, 11-26. https://doi.org/10.1016/j.future.2015.09.025

Cloud computing enables a revolutionary paradigm of consuming ICT services. However, due to the inadequately described service information, users often feel confused while trying to find the optimal services. Although some approaches are proposed to... Read More about An agility-oriented and fuzziness-embedded semantic model for collaborative cloud service search, retrieval and recommendation.

Green services, engineering, optimization and modelling in the technological age (2015)
Book
Liu, X., & Li, Y. (Eds.). (2015). Green services, engineering, optimization and modelling in the technological age. Hershey, PA, USA: IGI Global. https://doi.org/10.4018/978-1-4666-8447-8

Concerns surrounding environmental sustainability have led to an increase of interest in environmentally-friendly systems. In the ICT realm, attention has been largely paid to green aspects of hardware; however, it is equally necessary to address thi... Read More about Green services, engineering, optimization and modelling in the technological age.

Semantic description of cloud service agreements (2015)
Conference Proceeding
Greenwell, R., Liu, X., & Chalmers, K. (2015). Semantic description of cloud service agreements. In Science and Information Conference (SAI), 2015 (823-831). https://doi.org/10.1109/sai.2015.7237239

To provide cloud services as a utility there must be a mechanism for comprehensively and precisely specifying cloud service agreements to reduce differences in service perception between customers and suppliers. This paper proposes a description... Read More about Semantic description of cloud service agreements.

An approach to unified cloud service access, manipulation and dynamic orchestration via semantic cloud service operation specification framework (2015)
Journal Article
Fang, D., Liu, X., Romdhani, I., & Pahl, C. (2015). An approach to unified cloud service access, manipulation and dynamic orchestration via semantic cloud service operation specification framework. Journal of cloud computing: advances, systems and applications, 4(1), https://doi.org/10.1186/s13677-015-0039-3

Cloud computing offers various computational resources via convenient on-demand service provision. Currently, heterogeneous services and cloud resources are usually utilized and managed through diverse service portals. This significantly limits the e... Read More about An approach to unified cloud service access, manipulation and dynamic orchestration via semantic cloud service operation specification framework.

A Loosely-coupled Semantic Model for Efficient Cloud Service Search and Retrieval. (2015)
Conference Proceeding
Fang, D., Liu, X., & Romdhani, I. (2015). A Loosely-coupled Semantic Model for Efficient Cloud Service Search and Retrieval. In W. Zimmerman, Y. W. Lee, & C. Reich (Eds.), Cloud Computing 2014: the Fifth International Conference on Cloud Computing, Grids and Virtualization (6-11)

As cloud services propagate along with the rapid development of cloud computing, issues raised in service selection and retrieval processes become increasingly critical. While many approaches are proposed on the specification and discovery of cloud s... Read More about A Loosely-coupled Semantic Model for Efficient Cloud Service Search and Retrieval..

Critical Evaluation on jClouds and Cloudify Abstract APIs against EC2, Azure and HP-Cloud. (2014)
Conference Proceeding
Graham, S. T., & Liu, X. (2014). Critical Evaluation on jClouds and Cloudify Abstract APIs against EC2, Azure and HP-Cloud. In 2014 IEEE 38th International Computer Software and Applications Conference Workshops (COMPSACW), (510-515)

With Cloud Computing there comes new possibilities like programmability of Infrastructure via provider exposed APIs. These APIs can aid the concept of elasticity that is associated with the Cloud however, there is a trend that these APIs are provider... Read More about Critical Evaluation on jClouds and Cloudify Abstract APIs against EC2, Azure and HP-Cloud..

Benefits management of cloud computing investments (2014)
Journal Article
Greenwell, R., Liu, X., & Chalmers, K. (2014). Benefits management of cloud computing investments. International Journal of Advanced Computer Science and Applications, 5(7), 1-9. https://doi.org/10.14569/IJACSA.2014.050701

This paper examines investments in cloud computing using the Benefits Management approach. The major contribution of the paper is to provide a unique insight into how organizations derive value from cloud computing investments. The motivation for wri... Read More about Benefits management of cloud computing investments.

An Upper Ontology for Benefits Management of Cloud Computing (2014)
Journal Article
Greenwell, R., Liu, X., & Chalmers, K. (2014). An Upper Ontology for Benefits Management of Cloud Computing. International Journal of Advanced Computer Science and Applications, 5(12), https://doi.org/10.14569/IJACSA.2014.051211

Benefits Management provides an established approach for decision making and value extraction for IT/IS investments and, can be used to examine cloud computing investments. The motivation for developing an upper ontology for Benefits Management is th... Read More about An Upper Ontology for Benefits Management of Cloud Computing.

Cloud Migration Patterns: A Multi-Cloud Service Architecture Perspective. (2014)
Conference Proceeding
Jamshidi, P., Pahl, C., Chinenyeze, S., & Liu, X. (2014). Cloud Migration Patterns: A Multi-Cloud Service Architecture Perspective.

Many organizations migrate their on-premise software systems to the cloud. However, current coarse-grained cloud migration solutions have made a transparent migration of on-premise applications to the cloud a difficult, sometimes trial-and-error base... Read More about Cloud Migration Patterns: A Multi-Cloud Service Architecture Perspective..

A Software Engineering Framework for Context-Aware Service-Based Processes in Pervasive Environments (2014)
Book Chapter
Jaroucheh, Z., Liu, X., & Smith, S. (2014). A Software Engineering Framework for Context-Aware Service-Based Processes in Pervasive Environments. In Software Design and Development (71-95). IGI Global. https://doi.org/10.4018/978-1-4666-4301-7.ch005

Context-awareness is considered to be the cornerstone technique for developing pervasive computing applications that are flexible, adaptable, and capable of acting autonomously on behalf of the user. However, context-awareness introduces various soft... Read More about A Software Engineering Framework for Context-Aware Service-Based Processes in Pervasive Environments.

An aspect oriented model for software energy efficiency in decentralised servers. (2014)
Conference Proceeding
Chinenyeze, S., Liu, X., & Al-Dubai, A. (2014). An aspect oriented model for software energy efficiency in decentralised servers. In ict4s-14. https://doi.org/10.2991/ict4s-14.2014.14

Green software is currently gaining interests with the increasing impact of IT in energy consumption. Green-ness in software however, can be achieved at various stages of the Software Development Life Cycle (SDLC). Consequently, several software engi... Read More about An aspect oriented model for software energy efficiency in decentralised servers..

OCSO: Off-the-cloud service optimization for green efficient service resource utilization (2014)
Journal Article
Fang, D., Liu, X., Liu, L., & Yang, H. (2014). OCSO: Off-the-cloud service optimization for green efficient service resource utilization. Journal of cloud computing: advances, systems and applications, 3(1), https://doi.org/10.1186/s13677-014-0009-1

Many efforts have been made in optimizing cloud service resource management for efficient service provision and delivery, yet little research addresses how to consume the provisioned service resources efficiently. Meanwhile, typical existing resource... Read More about OCSO: Off-the-cloud service optimization for green efficient service resource utilization.

Requirements model driven adaption and evolution of Internetware (2014)
Journal Article
Liu, L., Yang, C., Wang, J., Ye, X., Liu, Y., Yang, H., & Liu, X. (2014). Requirements model driven adaption and evolution of Internetware. Science China Information Sciences, 57(1), 1-19. https://doi.org/10.1007/s11432-014-5064-1

Today’s software systems need to support complex business operations and processes. The development of the web-based software systems has been pushing up the limits of traditional software engineering methodologies and technologies as they are requir... Read More about Requirements model driven adaption and evolution of Internetware.