Digital library is not a simple collection of digital resources, but a reorganization of huge resources. This article compares the organization mode of digital library resources with that of the other resources. And it identifies the organization mode and the structure of digital library resources. The digital library must build its resources scientificly, and it can be the center of knowledge ,culture and education.
Digital objects can be classified by their modals presented when being applied into four kinds:
static document object, stream - media object, combined digital object and interactive object. Different kinds of digital objects have different kinds of transmission modals, which determines that they need different kinds of servers; Inside the object server, the identity system and search method of digital object determine the maintain2ability and expandability. This paper puts forward a solution of zero maintainability; The package and transmission mode of digital object w ill influence the usage quality and costs . This paper puts forward a package and transmission mode of documents. A t last, this paper sets forth a realization of digital objects server. .
This paper describes the concepts and implementation models of reference linking in a distributed and open digital information environment, analyses the related techniques and major examples.
Three kinds of distributed component models of main trend are introduced and compared in this paper. That applying distributed component technology can solve the interoperability problem of digital library is pointed out. And the application of distributed component technology in digital libraries construction is introduced.Digital library interoperability distributed component technology.
This paper discusses the concept, basic characters and classification of digital watermark.. And it also discusses the applying of digital watermark in the copyright of digital production and information security of digital library.
This paper explains software engineering method of making advanced library automation system for hierarchical structure,and giving realizable technology for making medium hierachy of the distributed library automation system for hierarchical structure.
The purpose of this article to discuss realization of journal information resources sharing and develop ing and using. It is very effective that building a journal union catalog database retrieval system undernet environment, the system can realize journal information resources union building, sharing in mo re range.The Database, Union Catalog Database of Chinese, Western letters, Japanese and Russia, its plat is on base Web journal database applications server, The Documentation and Information Center of CA S have built this database. This article introduce the database’ general situation, its function and characteristics of the web server system , its object of serve.
With the network techno logy and computer techno logy, the information service has been developed at a more rapid speed, and information service based network provide people high quality of service. But as a matter of fact, many departments that specialized in information service, face so much difficult in the road to digitalize thoroughly. At first, simply to digitalize traditional information cannot provide services than can satisfy users. Secondly, to organize the contents scattered in Internet, but has the conflict that between unordered resources in Internet and ordered information requirements by people. So, utilize the A I techno logy to develop the intelligent network know ledge service system come to a point. This paper put forward a scheme to realize this sort of service.
This paper in accordance with synthetic cabling system and network system engineering of library, introduca lots of relative advanced network technology in practice use and put forward lots of guiding principle.
New requests are put forward for the construction of databases in network environment. It is important to standardize them. This paper discusses the importance of the standardization of the construction of databases in network environment and the current standards. It may help constructing the databases.
The full text database services system of Elsevier ScienceDriect OnSite (SDOS)was introduced. The characteristics and search strategies of SDOS are discussed.
The article introduces the history,general picture,special databases of European Information Network Service and how to retrival in it.
Google search engine supports nearly 30 sorts of languages around the world on the Internet at present.Its Chinese search service becomes known and favored by more and more people who use Chinese. This article focuses on the exploration of its better functions and characteristics, as well as introduction of the related ways to search.
The paper introduces the application of content-based retrieval technology in image database of digital library and does some research in the application of object-based retrieval technology.It also provides the rule to evaluate retrieval technology.
This article makes compare between the information security development home and abroad, researches how to improve our information security level, and presents some proposals according to the problems laying in our information security development.
The main characteristics and the basic functions of Deja.com were introduced,the using methods of Deja.com were expounded by some searching examples,and the Chinese information resources on Deja.com was also discussed and analyzed.
The objects of this paper is to use modern information network technology, explore patient education website, offer service for modern patient education. We discussed the basic contents of patient education website. We applied technology of guide on line, programme of ASP, real producer plus software, Access database technology in the progress of building the patient education website.
This paper elaborates the developing background and the contents of network library. It emphasizes that electronic commerce is the serving mode of network library, and it must solve this problems in the future.
Three problems involved in the utilization of economy information resource on Internet are fully discussed:1. the more important role in the new economy environment;2. how to upgrade the search engine; 3. the access to high quality resources.
This paper discusses the retrieval system for combination of classification,subject and natural languages and examincs its principle,function as well as the key technology and model with practical examples.
This paper introduces present position of China Daily Reference Materials Department, analyzes informational reform of target in promotion ,and transforms some available plans into true.
The article introduces Internet of computer information network of the union college and university Libraries. include analysis request of the network system, system designing, the main technologies and selection ways of link networks,ect.
Digital library is the most important research issues in information science and development goals of traditiona libraries recent year.Due to the development of electroinc publishing,material digitization,multimedia and network technology,digital libraries seem to be the activities of every-one and every field.This paper describe the definition,questions and resolvents in the development of information resources,and hope to predict the trend of digital libraries in the 21 cemtury.
Internet has osmosed to every side about folk living. Although the network broke the nationality and the information that come from many countries, most of the information is English that most Chinese can t understand. Machine translation has been named the 863 plan by National scientific committee long since and machine translation has been researched for some years, but the changes of language are infinite. The research still needs effort.
The article gives brief introduction on how to judge some errors and restore them without reinstalling the NT system in the course of using Window NT.
With the extensive use of computers in libraries, readers have more chance of access to computers directly. Thus,how to maintain these public computers has become a hard nut for library maintainers to crack.. This paper compares and analyses some protecting methods of Window 95/98 software systems for computer maintainersreference.