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This paper use the concept of matter-element and correlation function to establish a prediction model based on the extension of the cluster, and apply the model to forecast the wastewater emissions. Applied results show that this method is scientific and reliable.
The classification for similar features classes is quite difficult task in many existing pattern-recognition systems. When the amount of samples is insufficient, neural networking training is hard. The dimension reduction, classification, clustering etc serial steps in recognition process takes such much time that the practical recognizing application is ease to meet the real time requirement. The...
In order to quickly generate secret key in low-power held-hand devices, Modadugu et al. propose two server-aided RSA key generation protocol, along with Chen et al. sequentially propose four improved protocol. However, one drawback of these protocols is they can??t resist collusion attack. In this paper, we implement a new server-aided RSA key generation protocol, which can resist collusion attack...
In the IT project development process, project change is inevitable throughout the entire life cycle. Change in the project has become the most prominent source of risk in the development of the project: a direct impact on the time, cost and quality of the software developing project. Project change is one of the most important causes of the failure of many projects. This paper analyses the reasons...
The technology of the reliability theory and its application is a new technology. It has important effect to ensure and improve the quality of the products of electrical engineering. In the reliability test of the products of electrical engineering, assume F(t,??) is the distribution function of the lifetime T of the product, where ?? ?? ?? is an unknown parameter, and ?? is the space of the parameters...
When studying attribute reduction, we need to enumerate all the minimal reductions to prove the correctness of the attribute reduction algorithm. The explosion of attributes combination makes time complexity of the enumeration algorithm pretty high. An algorithm derived from grouping the rows of decision table is put forward to validate if an attribute set is reduction. Based on this algorithm, a...
To make function test of Web application based on struts automation, an automated test tool is proposed. The content of form is produced through analyzing Web page by HtmlParser. The test cases are produced by matching the data in test database and the content of form. The test cases are described by XML. Changing the test cases to code of Cactus and running the code to achieve the target of testing...
Distributed test framework can not only ensure that the quality of software testing but also can improve the automated test efficiency, and so on. The key technologies of the distributed test framework are studies in this paper. First, the main idea of the distributed test framework and its overall structure are given combined with the actual project needs; based on it, the key technologies involved...
The Multi Expression Programming (MEP) and Neural Network (NN) is applied to the crack fault diagnosis of structure. The inherent frequency and the position of the crack obtained by ANSYS are used as parameters of the neural network. This approach employs MEP to evolve the architecture and the parameters encoded in the NN. This framework allows input variables selection, over-layer connections for...
Testing is one of the important means of software quality assurance. Each software development paradigm requires an appropriate test model. Software product line engineering emerges as a new software development method. This paper puts forward a new test model for software product lines, the W-model, describes two separate and closely related sub-models of domain test and application test. Key issues...
This paper presents an attack scenario based approach for software security testing at design stage. Attack scenarios are represented as extended activity diagram (EAD) and new unified threat model (NUTM). Security test cases are derived from attack scenarios automatically according to coverage criteria of complex attack path. These test cases are applied to test the security of system. According...
Based on a detailed investigation of a variety of current software test models, a novel behavior-based software test model is first proposed. It includes several activities, namely test design, test plan, test case generation, test execution, test result analysis and test reuse. And they are laid out in the whole lifecycle of software development process. Then the model is intentionally applied to...
FlexRay possesses many features not depicted in traditional in-vehicle communication specifications. FlexRay focuses on improving the key needs of the in-vehicle communication network, such as speed, flexible data communication, comprehensive topology choices and fault-tolerant computing. The current research on FlexRay is based on special chips having poor flexibility, making it difficult to conduct...
This paper proposes a practical test model and test approach for Web applications based on use cases and their corresponding sequence diagrams. Large Web applications are modeled as hierarchical profile use-case diagrams called UCTM (use case transition model). From the hierarchical UCTM, the sequential dependency relationship of use cases can be gained. Traversing the UCTM from top to down, each...
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