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Service-oriented Architecture (SOA) is a novel software engineering methodology of the internet era for developing distributed application. Different organizations and service providers develop their own web services independently and the service consumers can put these services together to develop their applications. Background processes are often hidden by their service providers and consumer can...
With the development of the university digitalized campus and widespread using of information systems, how to solve the sharing and interoperation of data between different departments and existing systems has become a new requirements of the development. Web Services has excellent characteristics like portability, loose coupling and Scalability, it can achieve the sharing and interoperation of data...
To cope with the inflexible security configuration in current mainstream embedded database system, this paper proposes a discretionary safely system (DSS), which is independent of any specific database system. DSS is based on hook technology. The experiment on SQLITE demonstrates that DSS is able to provide the pervasive and flexible security and audit with acceptable extra time consuming.
In this paper, we investigate resource allocation in OFDMA cooperative networks with Best effort services and real time services. We design a utility framework to satisfy QoS requirements of different applications. We define network utility as functions of data rate, delay, and packet loss. A utility function is assigned to user-relay pairs or only the user over each subcarrier, and the relay and...
CSP is a process algebra defined by Hoare. A long-running transaction is an interaction of components from different systems which must be executed as a single atomic action. Ensuring consistency is important for long-running transaction. Because long-running transaction often needs cross-organizational services composition and could not use ACID semantic, so CSP is used to ensure the consistency...
The existing reminder system uses limited context information and has limited functions, so it can't meet users ' needs. This paper presents intelligent business assistant based on context-aware computing platform in a grid computing environment. The platform uses the context modeling and reasoning technology and analyzes the system in the grid environment. At last, the intelligent business assistant...
Traditional ontology-based discovery of semantic Web services use similarity calculation of services and cluster to discovery Web services, on this basis, we present an improved service clustering approach and a framework for ontology-based flexible discovery of Semantic Web services. First of all, we use service analyzer to pick up information of service and use keywords to find out related services;...
In this paper, we proposes a multi-gateway nodes data collected routing algorithm based on load balancing(TBLB algorithm) and energy balance, robustness, data forwarding and anti-interference etc, which is multi-gateway nodes-based in wireless sensor network. This algorithm fully takes into account the problem of excessive power consumption when it serves as the data forwarding task, to reduce node...
Nowadays one can observe rapid development of various technologies supporting autonomic features and context-awareness of pervasive systems. And this is perfectly understandable as these features effectively increase the systems autonomicity. However, in the case of safety-critical realtime systems it becomes crucial to determine how the entire system performance is affected by the growth in complexity...
This paper presents the implementation of Synthetic Aperture Radar (SAR) image enhancement and information extraction techniques using multicore Graphic Processing Units (GPUs) connected into a cloud computing environment. The Bayesian approach to SAR image despeckling and information extraction is presented. The first order Bayesian inference is used to estimate a maximum a posteriori (MAP) estimate...
Recently, in classical P2P overlay networks, with applying replication technique, a single peer is replaced by a cluster of peers in order to tolerant Byzantine failures. In this paper, a novel robust and secure scheme for storage overlay networks is proposed by applying erasure coding technique to reduce redundancy and enhance privacy protection. For achieving a lightweight data privacy protection,...
Radio frequency identification is applied to the indoor location system of store environment in the paper. According to the radio frequency communication signal time difference between reader and merchandise tag, it can be easy to measure goods spatial position. In the research, we use smoothing method to construct the original measured data to degrade NLOS error. Then improved genetic algorithm is...
For geographic routing in 2D ad hoc networks, greedy algorithm is efficient if no holes exist. However, greedy forwarding fails when a message reaches a local-minimum. Thus, face routing is used to solve the problem of local-minimums. Unfortunately, few research results can be applied to geographic routing in 3D environments. This paper proposes an algorithm GSG (Greedy Surface routing Greedy), for...
With the rise of mobile Internet and cloud computing new ubiquitous medical services will emerge coinciding with changes in demographics and social structures. Mobile e-health and Wellness applications can help relieving the burden of accelerating health care costs due to aging societies. In order to leverage these new innovations a holistic approach must be considered. Facilitating user centered...
Nowadays, many people suffer from negative moods like sadness or anxiety. As an effective tool to relieve such moods, music therapy is widely embraced. Furthermore, researchers try to use newly developed bio-feedback technologies like electroencephalograms (EEG) to measure the effects of music therapy since it can reflect people's emotion sensitively and objectively. In this paper, we design a mobile...
The stress and poor sleep quality of a person may be used as two of several components for predicting the onset of mental health problems, in particular depression. Ergonomie smart sensors that can determine the heart rate variations related to stress and the variability of sleep may provide unique insights to the coping behavior of stressed people. Rather than relying on wearable computers, a single...
Medical Informatics is the scientific field that deals with the storage, retrieval and optimal use of information and data in medicine. It is often called healthcare informatics or biomedicai informatics, and forms part of the wider domain of eHealth. The end objective of biomedicai informatics is the coalescing of data, knowledge, and the tools necessary to apply that data and knowledge in the decision-making...
The determination of the slant-path long-term rain attenuation has been formally characterized on the ITU Recommendation P. 618-8, using an empirical statistical model, suitable for frequencies up to 55 GHz. For the purpose of applying this method on the study of the rain phenomena over the Venezuelan region, different Matlab scripts have been written, aiming to automate the calculation process, iterating...
Nowadays, people are suffering from various psychological problems such as insomnia, melancholia, anxiety, oppression, etc., but the current psychological counseling service system can not meet the increasing requirement. In this paper, we propose a new online psychological counseling framework, Psycare, which comes up with several significant features: (l)Automatic self-help in mind to customers...
Smart homes have been proposed for senior citizens aiming to improve their quality of life. In order to monitor the seniors ' sleep condition in smart homes to protect them from sleep disorder, an automatic sleep staging system is necessary. Furthermore, measure selection is a crucial step in an automatic sleep staging system. In this paper, we present three advanced combination schemes among 15 sleep...
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