The key of Open Archives Initiative protocol for metadata harvesting is building a proper cooperation between data providers and service providers, and then setup a proper framework for digital resource publishing and management. This paper is based on analyzing framework of OAI protocol, and discusses its application in detail.
To improve library access for video information, Carnegie Mellon University's Informedia Digital Video Library uses automatic processing to derive descriptors for video. A new extension to the video processing extracts geographic references from these descriptors. The operational library interface shows the geographic entities addressed in a given story, highlighting the regions discussed in the video through a map display synchronized with the video playback. The article expatiates on the Library's accessing video through spatial queries, map representation of a video segment and future of video information retrieval.
This article discusses a practical quality model for evaluating application sofeware in digital library in the light of the quality questions of the application sofewares in current digital library.
Requirements on right management system of digital content are obtained. A Digital Right Management (DRM) system is designed. Existing commercial systems in the domain of digital rights protection are presented,and its applications and shortages are pointed out.
Knowledge portals provide views onto domain-specific information on the World Wide Web, thus facilitating their users to find relevant, domain-specific information. The construction of intelligent access and the provisioning of information to knowledge portals, however, it requires extensive manual editing and maintenance by the knowledge portal providers. In order to diminish these efforts using Ontology as a conceptual backbone for providing, accessing and structuring information in a comprehensive approach for building and maintaining knowledge portals. There are one research and one commercial case study that show how our approach is used in practice.
With library digitalizing process moving forward continuously, digital library will be not only a information retrieval and service system based on digitalization resource or resource system, but also a kind of the development mechanism to get together information resource, information service and information use campaign with user as core. Information grid has offered new platform for digital library to establish information distribution and integrated application of leaping Web. This paper has discussed information grid technical and research focal point and the application of information grid and has made a information service system construction based on information grid.
This paper indicates that the current estimated index system college libraries in the age of digital library under the network circumstance has lagged obviously behind the demand of the time development, and the necessity to reconstruct the estimated index system of college libraries, the guiding of fully new estimated index system with the modern index and the developing principle of the navigation library are put forward. And combined with relevant estimated index of college library in“Qualified Estimated Index System of Undergraduate Course Work in Comprehensive University”, the modern estimating indexes in the estimated index system of college libraries are cited and the methods to be improved for relative projects are also discussed.
The paper discusses the designing goal, applying theory, key technology and implementation of the electronic readingroom management system in digital age.The system which based on the multi-tier structure encapsulates the network and database operations with OO technology.It can make the readingroom be monitored easily in realtime way and the informations such like users/administors,facilities,services,charging etc. be managed efficiently.
Struts is a free Web application framework advanced by Apache.It provides a best framework for common Web application development and can greatly enhance the developing efficiency of programmer. This article firstly gives us a thorough analysis to the mechanism of Struts, then uses a real Web application GTMIS as an example to show a detailed application of Struts.
An approach for validation of UML based system modeling by CPN(Colored Petri Net) is described. The Object Oriented Petri net is constructed by combining objectoriented techniques with Petri net theory. In this article,the author also bring out a set of methods on how to mapping UML diagram to ObjectOriented CPN.The modeling of the OO Petri net not only can reduce the complexity of the model, but also make the modeled system with reusability and easy maintainability.
First, this paper analyses some algorithms of finding related page, and then puts forwards a modification of classic HITS algorithm which is used to find related pages. Finally, through experiment and its analysis, this paper draws some conclusions. Study on finding related-pages can provide information-seeker a way to retrieve useful Web pages effectively.
The background and significance of developing this system and the relational knowledge about knowledge discovery are presented in introduction. The second part introduces the interoperation of heterogeneous resources and the methods of text classification. Then it is the framework of system, the flow of work and metadata of resources. In the end, the innovation、merit and foreground of the system are indicated.
With the development of Java and WWW, it is possible to visualize information retrieval based on Web. So called visualization technology is changing data into graphics or icons and displaying in the screen, utilizing computer graphics and image processing and human-computer interaction. Information retrieval visualization is utilizing data visualization in the IR. Through GUI users interact with IRS, evaluating the access results, optimizing the query, and improve the precise and recall. This paper mainly discusses human-computer interface design principles,visualization techniques,then introduces several kinds of information retrieval visualization models at the same time.
This paper discusses natural language retrieval based on phrase structure index and related problems. The paper presents the index types which meet the natural language retrieval, and analyses their characteristics. On the basis of validity and difficulty, the paper puts forward the retrieval project by using phrase structure index. Three kinds of presenting ways are analyzed, the physical structural and the retrieval procedure by using phrase structure index are given.
Based on the brief description about the R&D background and social value of the intellectual property management software, this paper analyzes emphatically the developing states about the current intellectual property management software in China and abroad, and introduces several software having extensive application in foreign countries. The future development direction of intellectual property management software have been discussed and predicted to a certain extent.
In order to release Web information immediately and integrate them smoothly,the paper discusses how RSS(RDF Site Summary) is applied to solve the problem.
By the wide spread application of computer network, the behavior of unlawful invading and attacking becomes even more. It critically threatens the safety of network information. It has become an important and urgent subject to make the computer system, network system, and the whole base facilities of information safety, by making detection and safeguard for invading and attacking. This paper, aiming at the technology and methods of invading detection about network information, discusses and studies their classify, furthermore studies the tending of the technology developing about invading and invading detection.
Starting from introducing the kinds and features of storage device, the paper mainly discusses the application of SAN technology in plenty data resource and the advantages of that application, and generalizes the future development of SAN framework.
More and more Web sites are built on databasedriven architecture. The Web pages of these sites are creating dynamically. This paper advances and implements a method of automatic information extraction from the dynamic pages by using WebBrowser and DOM technique. In addition, the paper illustrates the details and code through a prototype.
This paper introduces the construction, function and application of the system of Virtual Reference Desk in library of Fudan University consists of E-mail and realtime service.
Based on the features of college library, the author puts forward his attitudes and opinions about the construction of college library FTP site and setting up a FTP site.
The design of a personalized Web site, which has such characters as modularization, personalization and intelligent online help for Xiamen University Library, based on the requirement of readers,and the function of a library is given in this paper.
This article introduces the applications of IEI NAS2108R in the university libraries, including providing large capacity share space, router gateway that connecting Internet, providing the functions of dummy server, document server, DHCP server, DNS server and high grade firewall.
The article introduces universal Transmission Control Protocol (TCP) and User Datagram Protocol (UDP),designs a program of network classroom based on UDP IP multicase using C# and shows steps of broadcast and receival.
Holographic compression code technique is a kind of computer information processing technology. It can transfer the keywords,the title or the content of a Chinese record into an unique digital identifier. It greatly increases the speed of document retrieval and dramatically saves the space of information storage; Therefore it is widely used in the document retrieval system such as inverted file, inquiry, record comparison，etc.
The paper introduces how to install five operation systems on one computer.
Automatic indexing by statistical analysis is an important method in automatic indexing.On the basis of the principle that indexing words should reflect the subject of the document,the author gives some advice on determination of the resource of indexing, design of the words weight, adjustment of the words frequency,design and maintenance of post- controlled thesaurus.By means of these measures,the document can be better reflected and the retrieval efficiency can be improved.