Advanced Materials Research Vols. 989-994

Abstract: Personalized recommendation application system of product and service is a valid tool to boost sales in both online and offline business. It has been reported and has been our experience that algorithmic –modeling phase occupies at most 20% of the effort in a data–mining project. The other 80% is how to put the “model” into practical application. The implementation process of personalized recommendation system based on data mining to E-commerce was discussed in this paper. We also proposed architecture of the system, described the application of technology, designed some features of the function modules.

Abstract: Contrary to high false positives rate of use White-box testing tools for Web application source code security and unable to locate vulnerabilities of use Black-box testing tools for Web application security, propose an effective method for combine White-box and Black-box testing tools of Web applications. This method will put the new technology of “Associated Files Matching Engine” into White-box testing tools, this test result and Black-box test result will be statistical analyzed and combined. Argumentation show, this method reduce the positives rate of White-box test result and be able to locate vulnerabilities where it is in file.

Abstract: A lot of the wireless sensor network applications call for sensor nodes to be applicable to any environment. RSSI-based measurements implement conveniently and are cost-efficient and power-efficient in practice. This paper compares the distance estimation performances based RSSI in three different environments by experiments and discusses their characteristic in detail. We carry out a large amount of repeated experiment based on RSSI in three kinds of environments over the 2.4GHz wireless channel. Subsequently, we focus on studying and discussing data analyses of RSSI and possible improvements in each environment. Experimental results demonstrate availability and feasibility of RSSI in outdoor and indoor environments.

Abstract: Earthquake is a small probability of unexpected events. Most of the emergency management personals did not experience the earthquake. They may cause flaws in the post-earthquake emergency response process, if they do not take part in earthquake emergency exercise. Traditional tabletop exercise, however, cannot provide a relatively realistic earthquake disaster scenes and vivid emergency background, so they need the virtual simulation exercises and drills for emergency management personnel to provide a real disaster site that is very similar to a drill. This paper presents system structure, function composition, scenario editing process of virtual reality simulation of earthquake emergency exercise and discusses a scenario editor based on OSG. Scenario Editor of earthquake emergency can control the drill and quickly rebuild the drill scene and improve emergency management personnel to design urban 3D scenes and earthquake and secondary disasters events.

Abstract: P2P live streaming is a hot research topic of Internet, but for the defective of system architecture and scheduling policy, P2P streaming applications have poor user experience, such as long start-delay, long play-delay, and low play-continuity and so on. Firstly, based on the analysis of the advantages and disadvantages of previous works, this paper designed and implemented a hierarchical P2P streaming system. The system is composed by three layers: source management servers, region management servers, and peers. The underlying P2P overlay network is organized through Mesh-pull mechanism. We propose a new scheduling strategy to utilize the capacity of the peer. The new adaptive scheduling strategy considers the urgency and scarcity of the data blocks, and selects the appropriate neighbor nodes by monitoring neighbor nodes’ the maximum load. The study of a real-life system provides valuable insights for the future development of P2P live streaming systems.

Abstract: Requirement change is always a serious problem for developers and Software companies. Especially in putting ERP software into effect or ERP software secondary development, the requirement change has brought great disaster. The requirement process is not in-depth understanding and having no standard management mechanism are the main reasons for requirement changes. For ERP software companies, they must pay more attention to the requirement process and requirement changes.

Abstract: This paper studies the key issues of how to reduce the energy consumption of the ZigBee nodes, through optimizing node's dormancy mechanism without affecting the quality of network communication.

Abstract: In wireless sensor networks based on ZigBee,we often see such a model that full symmetric transmission model of competition for channel resources based on CSMA/CA algorithm. For the purpose of reducing the energy consumption of entire network,this paper establishes a model that communicate as planned which based on CSMA/CA algorithm.

Abstract: Introducing the background of domestic park cloud platform. Comparing the Platform construction operations of Suzhou Software park, Hangzhou east software park, Beijing Zhongguan Village software park, Chengdu Tianfu software park and Dalian software park platform construction operation comparison. Through the study, we concluded that park's cloud platform was more than just an IT service platform. It was also a park assets and service of integrated management platform and learning and employment platform. Cloud platform will support park characteristic industry and provide information for the development of the park’s industry.

Abstract: This article studies the characteristics of agenda setting and mode of transmission, which are presented in the micro-blog information resources in spreading the local image. Discovers the operation pattern, at the same time, tries to seek the common pattern of local image communication in new media times through micro blogging, which on behalf of the local social media, and then use the micro-blog information resources to shape and optimize the local image.