Advanced Materials Research Vol. 981

Abstract: Software process reuse can improve the quality of software products and save the cost of software development, in order to make it more convenient for software organization to build software process model rapidly and efficiently, a method was proposed to analyze the value model which is based on the Petri net, introduces the concept of time and the implementation of value, through a specific algorithm design to provide guidance and decision-making basis for assessing the reuse of software process.

Abstract: Model-driven architecture and service-oriented architecture are popular software development methods at the present, these two methods have their own advantages and disadvantages, the proposed SOA-based Model-driven Rapid Development Architecture by combining these two methods, Using colored Petri nets’ tools to study service composition methods specifically, and described five basic logical structure of service composition through formal methods, then gave out the construction method of composite services, finally, verified the effectiveness and safety of the service composition method through the modeling.

Abstract: In the face of immense Web pages of WWW, how to extract valuable knowledge from the Internet is a difficult problem. The main research work of this paper was to apply FCA (Formal concept analysis) and Web terms on the Web representing the relationship between Web pages and web terms. We deeply studied how to apply Galois to Web page mining, and used the Java language to design the Web pages mining system. The system uses the constructed Galois lattice to extract potential knowledge of WWW. The results prove that the use of Galois Lattices and Web terms for Web pages mining is feasible.

Abstract: The paper first expounds the reason that establish intelligence application platform in public security e-government. The data of cross-regional, cross-department, cross-police process through extraction, cleaning, conversion and loading and be shared. It introduces the procedure and methods of intelligence obtaining. Finally system architecture is listed one after another according of data layer, service layer, application layer, presentation layer and security mechanism.

Abstract: This paper introduces a practical and cross-platform virtual electrical experimental tool (VEET) based on an off the shelf game engine called Unity3D which is powerful and flexible to develop Virtual and Augmented Reality (VR/AR) applications. Taking the electrical experiments of technological university as examples, the well designed virtual experimental system has the characteristics of lifelike three dimensional (3D) experimental environments, AR interactive interface on mobile devices, intelligent detecting mechanism and cross-platform. We described VEET’s flexible design and demonstrate its use in teaching where 120 students from three classes conducted electrical experiments with it. The experiments in VEET were presented on desktop, mobile and web browser using low cost common devices (personal computer, android handheld device, Chrome browser). Evaluating the main performance parameters, the well practicability was confirmed.

Abstract: Although high level architecture (HLA) is the mainstream of application in distributed simulation technology, poor interoperability, deficit reuse of the codes of the simulation applications and inferior expansibility of the simulation system had became the research focus of simulation community at home and broad. And Grid is able to manage a large number of heterogeneous resources of geographically and organizationally distributed. So a kind of Grid-based distribution simulation runtime infrastructure (GSRI) was put forward. Here with WSRF specification, GT4 tools was used to encapsulate the pRTI interfaces. And given the performance analysis, it is shown that despite the latency created by the transmission through wide area network (WAN), the GSRI may support the large-scare distributed simulation applications. It has a profound theoretical significance and great value of the engineering.

Abstract: Hadoop performance a significant advantage in dealing with large files, but it is ineffective if we use Hadoop to handle a large number of small files, because the physical address of the Hadoop file is stored in a single Namenode. Suppose that the size of a small file is 100Byte, if there are such a large number of these small files, it may lead to greatly reduce the utilization of Namenode memory, and due to the large number of small files make the index directory increase, it also lower the rate of user accessing to files. To solve the problem described above, this paper propose a new solution for small file storage of Hadoop based on prefetch mechanism, experiment shows that this solution can effectively improve the memory utilization of Namenode and significantly improve the speed of user accessing.

Abstract: —This paper proposed an incentive mechanism of resource pricing and sharing to achieve the maximum of profits, which based on game theory. Firstly, we proved the Cournot equilibrium sharing within different price and cost functions to achieve the maximum profits. Secondly, we analyze and solve the Cournot equilibrium sharing, the unit profit and the total profits. Finally, simulation show that the proposed model relationships among the number of providers, different of price and cost functions, the maximum profits parameter, the unit profit and the total profits.

Abstract: The thermal situation in tackling the current real estate marketing cost is high, the display effect is poor, the purpose of effective communication problems such as less crowd, put forward using Untiy 3D game development platform to develop low cost online estate system method.Starting from the relevant concepts, mainly introduced how to make use of the existing 3D model technology, image processing technology, as well as Untiy 3D game development platform integration technology and so on the many kinds of virtual reality technology, complete the system, finally solve the relevant problems in real estate marketing.

Abstract: This paper seeks to combine the advantages of cloud computing to design an IT enterprise alliance information platform based on cloud computing. In this study, we adopt B/S framework of tree cloud database to store IT enterprise alliance information for this platform, which is used for activity data collection and its subsequent analysis. Further, starting with the demand analysis of IT enterprise alliance information, we investigate the function of the information platform, including information release function, knowledge sharing function and online communication function and so on. At last, we propose and devise an effective IT enterprise alliance information platform utilizing the cloud resource to complete handling business problems between alliance enterprises effectively.