National digital library system is composed several subsystems, including acquisition, production, preservation, distribution, service and back-up. The system will conform the service and automatic systems of NLC, and construct a modern library information network service platform.Since this is the biggest digital library system design in China until now, many problems need to be solved in the implementation process.
The Chinese information processing is the important role in the National Digital Library of China. This paper presents the overview of Chinese information processing; pointing out the problems in Chinese information processing; designating the necessity of Hanzi attributes dictionary and the application foreground of Chinese information processing in the National Digital Library of China.
This paper introduces the trends of the cluster technology; and discusses the Fire Phoenix Cluster Operating System with the application in digital library construction. Besides, describes how to use the heterogeneous cluster operating system to construct cluster management framework in digital library, and offers the virtual platform for grid computing, together with the search engine for large datasets.
This paper introduces storage system design of digital library in national library of China. Besides, it introduces the concepts of storage virtualization and makes virtualization technology in the future application of National Digital Library. At last, the author discusses the influence of the storage virtualization in digital library.
According to the information retrieval theory, this paper associates the information retrieval with the cluster technology, builds retrieval system architecture for digital library. Upper the foundation of architecture, with more than 10 million metadata and a considerable number of queries simultaneously, making a series of experience and analyzing the experimental results. Then calculating the expansibility of the system architecture.
This paper analyzes and studies XML exchange format of MARC (LOC’s MARCXML and ISO MarcXchange Schema) based on the analysis of ISO 2709 limitation and requirement for XML metadata data exchange during network age. The principle, framework, functions and significance of XML format are introduced and relation and distinguish between XML and ISO 2709 are indicated. The result of OAI experiment to MARCXML reveals OAI limitation. Finally, A preliminary plan for CNMARC XML format is put forward.
This paper briefly introduces the problems existing in retrieval system for database built by library of Shantou University, and the architecture of the Microsoft .NET Remoting framework, puts forward one stop retrieval system model of distributed heterogeneous database based on . NET Remoting framework ,and discusses in detail how to realize the model based on . NET Remoting framework
This paper introduces normal segmentation algorithms, and based on the improving Chinese converse dictionary and optimizing reverse-order directional maximum matching algorithm, designs a Chinese segmentation system. In the experiment, the speed and accuracy are improved obviously.
This paper introduces the construction of language analyzer in Lucene, designs and implements Chinese words segmentation module which uses forwards maximum match algorithm (FMM). This module can disposes Chinese information well and efficiently in the search engine based on Lucene.
The paper takes the literature relevant to the cardiovascular disease in CBMdisc as the test collection to explore the feasibility of automatic construction comparison list with statistic method.
The 200 and 80(at home and abroad)papers on evaluating the Internet information resources issued in correlative English and Chinese periodicals from 1990 are quantitatively analyzed ,so the situation of the developmeng and change of the evaluating Internet information resources is clear. Furthermore, on the basis of these work, the direction of the development of evaluating Internet information resources in the future is also indicated.
After introducing the architecture and the longterm preservation policy of LOCKSS, this paper analyzes methods, attributes, types and developoment modes of plugin, and discusses the implementation of Chinese ejournals plugin for LOCKSS.
The Apriori algorithm is a classical method of association rules mining. Based on analysis of this theory, the paper provides an improved Apriori algorithm. The paper puts foward with algorithm combines HASH table technique and reduction of candidate item sets to enhance the usage efficiency of resources as well as the individualized service of the data library.
This paper describes a special software solution to realize once login, uniform management and access control on Web-based electronic resources beyond the campus network by using cross domain Cookie technology. Compared with the proxy server and VPN method, this independence bandwidth method avoids transmission bottleneck problems. Associates with the successful application in Shandong University, this paper gives the detail technical solution for main system functions, and mentions the user control, resources access and copyright reserved strategy.
The picture browsers that the agora fetches at present do not possess the function such as the picture and word are concurrent, sound synchronous browse and broadcast, collecting, user-defined. However, multimedia CAI software and electronic advice possess the defect that the users cannot amend content. In order to supply the need that market need general - purpose picture browser, the paper provides the user-defined multimedia picture browsing system designing ideas and the multimedia picture page layout execution method.
This paper takes the Second Artillery College’s library as an example and explains the design of military institute library data warehouse in detail. The warehouse is based on the multidimensional data model and realized by Microsoft SQL Server 2000. It solves the problem of consistent storage of slowly changing historical data in warehouse by a slowly changing disposal on dimension table. This paper also proposes a new method to assess the use ratio of books in library.
This paper puts forward a set of practical feasible enforcement scheme according to the maintenance and management of college library electronic reading room and public computer room. Discusses emphatically the Ghost-broadcast service, the Ghost automatic distribution of software packages, and using scripts to modify computer configuration voluntarily.
This paper introduces the theory and technology in the system of book purchasing, and illustrates the function of the system. The system can acquaint the staff with relevant collection information and circulation message immediately in the purchasing progress, and help the staff edit and count present purchase data effectively.
This paper applies the methods of SPSS and factor analysis to the performance review and check. It gives a multivariate and multi-personal statistical analysis to the performance of the staff. The result of this analysis not only achieves the performance schedule of the staff actually and quickly, but also realizes the division of the performance review a grades and check-up grades of them, thus playing a positive role in raising the standard of the human resource administration in libraries.