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Performance evaluations of health services providers burgeons. Similarly, analyzing spatially related health information, ranking teachers and schools, and identification of differentially expressed genes are increasing in prevalence and importance. Goals include valid and efficient ranking of units for profiling and league tables, identification of(More)
Web service selection technology based on quality of service (QoS) has been a research focus for a while. Current researchers are trying to find a service selection solution for single user to get the optimal QoS utility value. However, there is a condition in which multiple users may raise their requests with same functional requirements. These requests(More)
Because of the elastic service capability of cloud computing platform, more and more applications are moved here, which makes efficient load balancing into a bottleneck. Considering the unique features of long-connectivity applications which are increasingly popular nowadays, an improved algorithm is proposed based on the weighted least connection(More)
Performance evaluations often aim to achieve goals such as obtaining estimates of unit-specific means, ranks, and the distribution of unit-specific parameters. The Bayesian approach provides a powerful way to structure models for achieving these goals. While no single estimate can be optimal for achieving all three inferential goals, the communication and(More)
In this paper, we study a new framework for multi-user Web services selection problem, which aims to select best candidates to meet multi-user's requirements. However, the unavoidable challenges in this problem are the efficiency and effect. Most existing methods are proposed for the single request condition without considering the overload of Web services,(More)
BACKGROUND Recently, microarray data analyses using functional pathway information, e.g., gene set enrichment analysis (GSEA) and significance analysis of function and expression (SAFE), have gained recognition as a way to identify biological pathways/processes associated with a phenotypic endpoint. In these analyses, a local statistic is used to assess the(More)
New value-added business, generated by Web service composition in BPEL, provides more powerful and flexible features. SOAP-based web services invoked in BPEL are heavy with redundant information and lower performance. RESTful Web service is brought forward to new value-added business as an alternative solution. However, it's a big challenge to compose(More)
Cloud computing centers enable to provision diverse virtual machine (VM) in an elastic and scalable manner. VMs are created by instantiating VM images that encapsulate the required applications or services with their support environment. The multi-gigabyte VM images are hosted in the central image repository, while hosting centers are geographically(More)
Log for PaaS cloud computing system is important to provide information to manage systems. In this paper, we design and implement a PaaS log system by providing log recording ability to other parts of PaaS system as a webservice. This system uses Log4j as log frame and CouchDB as database to analyze logs due to its data structure, efficient log analysis(More)