Advanced Materials Research Vols. 756-759

Abstract: As the information age is coming, there is a vast amount of information available in the Internet. Most of data on Web are unstructured. But the significant data should be organized and stored in a suitable way for future purposes. One of the unsolved problems is the management of unstructured data. The unstructured data such as presentation, spreadsheet, text document, memo, images and web pages are difficult to manage while the data become a large scale and the users have different requirements and interests. In this paper, we proposed an architecture for unstructured data management by integrating source query, data collection and data management to solve these problems. The data collection layer extracts the data we care about, we use the existing tools to extract automatic and we can also add the data to the repository manually. The data management layer manage all the collection data by classifying the data, selecting nodes to store and managing centralized as index. The source query layer allows users to query and get the data diversity according the adaptive query service and recommendation service. Finally, we implemented a prototype system OCourse based on this system architecture to show its feasible and efficient.

Abstract: To inspire students interest in learning, cultivate their spirit of innovation, and comprehensively improve the level of experimental lesson, the virtual system of physiological function experiments based on networks was developed, applied. [Methods] With establishment of the data management and service functions, and the support of the database, this system provides material library for various functional virtual experiments It could respond the clients access successfully. In addition, the system is available for campus network and internet access with employing network architecture. [Results] Through the actual operation, it is shown that the system run stably and well with vivid images. It is conducive to stimulate students initiative and develop their ability to innovate. [Conclusions] This system can be used in classroom, or for self-studying with networks. Therefore, it could enhances the students interest in learning and improves their creativity and imagination.

Abstract: With the rapid development of computer technology, storage systems become more and more important, the virtual storage technology can simplify storage system and more and more attention. This article briefly describes the concept of virtual storage technology, focusing on the classification of the virtual storage; finally, the application of virtual storage technology in the library was analyzed and discussed.

Abstract: In order to solve the serial execution caused by multithreaded concurrent access to shared data and realize the dynamic load balance of tasks on shared memory symmetric multi-processor (multi-core) computing platform, new design methods are presented. By presenting multicore distributed locks, multicore shared data localization, multicore distributed queue, the new design methods can greatly decrease the number of accessing the shared data and realize the dynamic load balance of tasks. For illustration, design scheme of multicore task manager of server software are given by using new design methods. Results shows the new design methods reduce the number of access shared resources, partially resolve the serial execution of cooperative threads and realize the dynamic task balance of server software, which validate the superiority of this approach.

Abstract: XML receives widely interests in data exchanging and information management on both traditional desktop computing platforms and rising mobile computing platforms. However, traditional XML retrieval does not work on mobile devices due to the mobile platforms limitations and diversities. Considering that XML retrieval on mobile devices will become increasingly popular, in this article, we have paid attention to the design and implementation of XML retrieval and results clustering model on the android platform, building on jaxen and dom4j, the XML parser and retrieval engine; furthermore, the K-means clustering algorithm. As an example of usage, we have tested the prototype on some data sets to the mobile scenario and illustrated the feasibility of the proposed approach. The model demonstrated in this article is available on the mobile XML Retrieval project website: http://code.google.com/p/mobilexmlretrieval/.

Abstract: Web service has been rapidly developed in recent years. Web service selection is an important issue in web service composition and lots of service selection algorithms have been presented. As lots of them select an atomic service during runtime, it is not an easy task to evaluate the quality of the composited service which composed of several atomic services. In this work we introduce WS-SIM, a simulation toolkit, to solve this problem. WS-SIM supports modeling and simulating composite services and atomic services in the real world. This system also provides many common service selection algorithms and researchers can custom their own service selection algorithm for a simulation experiment. The quality of composite services can also be generated by our system. Furthermore, to demonstrate suitability of the WS-SIM, in this paper, functionalities of our system are illustrated by a case study. This confirms the usability and the applicability of WS-SIM.

Abstract: Text similarity computing is the core issue that question-answering system needs to solve. It is mainly used to filter out the existed problems which are similar to the users questions from database. Because of the low recall of domain keywords in domain text similarity computing based on traditional semantic dictionary, this paper proposed a short text similarity computing method in the field of agriculture based on the extended version of <> which referred to as <>. This paper propose to consider both the similarity and correlation when calculate the words final similarity. The experimental results show that the proposed short text similarity computing method resolve the problem of the low recall of domain words in traditional semantic dictionary well, and improve the similarity calculation performance of high relevant keywords greatly.

Abstract: In order to improve the compression speed of JPEG2000, the JPEG2000 compression standard is analysised and it concluded that the part data of the core algorithm that is DWT in JPEG2000 are independent from each other, so it is very suitable for parallel processing. CUDA (Compute Unified Device Architecture) is a latest software and hardware exploitation platform released by NVIDIA which is very suitable for large-scale data parallel computing.Using CUDA technology on general purpose graphic process unit (GPGPU) could speed up DWT algorithm parallelly and the program is optimized based on the characteristics of GPGPU storage space. The obtained experimental results show the DWT algorithm that is optimized by CUDA parallelly can improve the computing speed.

Abstract: In a market environment characterized by customer domination, rapid change and fierce competition, individuation, low price, quick response and high quality have became most important factors for market competitiveness of product. These characters are very similar with military equipment support activities in combat field. Based on analyzing background of agile supply chain and its current research, using agility as a basic function request, the connotation of equipment support supply chain and its characteristics are analyzed with agile supply chain theory. An application framework structure is proposed with dynamic support alliance as its guiding idea. Through integrating alliance, organization, management and operation, the framework structure can ensure dynamic and agility of supply chain when it is supported by the information system. The research of application system architecture of agile equipment support supply chain can provide references for its realization to some extend.

Abstract: This paper first introduced the development process and function characteristics of the famous Sakai platform, then introduced the Sakai development environment and related the development technology. At last, the paper introduces the Sakai application in domestic and foreign. For the purpose of providing enlightenment and reference to network aided instruction in our university, we analysis and build an independent study platform.