This article gives us a systematic analysis between NII(National Information Infrastructure) and the library. It also discusses the changes of the library under NII demand.For this reason,some pro blems must be solved and some countermeasures must be made in domestic libraries at present.
The paper presents a PC aided indexing system which is developed b y means of Borland C++ programming language and is running on the MS-Windows environment. The importance of friendly user interface is discussed and some ideas for the in terface design are given out. An on-line thesaurus is introduced and its logical data st ructure is also discussed.
This article introduces the Dexter hypertext reference model,analyses th e model s three layers:storage layer,run-time layer and within-component layer,a nd the mechanisms of anchoring and presentation specification that form the inte rfaces between the storage layer and run-time layer,within-component layer.Then discusses the application of the Dexter model in the system of the information r etrieval.
A quantitative study for two kinds of indexing mechanism of the Chinese full-tex t database is given,based on the quantitative analysis of capacity,time,retrieva l efficiency.According to results of the test,it is useful to select a full-text database system by users and improve the full-text database software design by designers.Finally,the developing trend of two kinds of indexing mechanism is als o discussed.
In this paper,the author compares the two approaches——Chinese lite rature automatic indexing,segmentation mark indexing and single Chinese characte r indexing,especially in indexing and process of retrieval,and puts forward some proposals and assumptions for revision to promote the research of automatic ind exing.
The article analyzes the merits and demerits for the system of free term indexing.The organizing methods,using methods,and the effectives of post-co ntrolled thesaurus and inverted-file merged into an organic whole in the documen t retrieval system have been described in detail Finally,The further solution fo r the problems that the post-controlled thesaurus applied to the document retrie val system is discussed.
On the basis of analysis of traditional information retrieval system, a design idea of common information retrieval system based on Xbase language is put forward in this paper,the aim is to provide a good foundation for informati on retrieval.
The purpose of this paper is to discuss the software tools for devel oping information management systems.In particular,the designing goals and strat egies for SGIMS (Software Generator for Information Management System) are given .The development of the structure,modules,generators and it s applications are a lso discussed.
A key of multimedia communication is the video communication due to the contradictory between the enormous data of video information transmitted and low transmitted rate in channel of network.This paper introduces the general pr ocess of video communication of multimedia,and emphasis is placed on the discuss ion of compression technology of video communication and network environments re alized video communication of multimedia.
This paper introduces a self designed and developed retrieval system on CD-NET,and gives the beneficial discussion on the development of library s i nformation service with poor founds of the libraries at home in current informat ion society.
This article analyses the project selection of library automation system under network environment from the point view of provincial university library,and provides a practical project selection scheme.
Four characteristics of JAPAN/MARC were analytically summarized,incl uding rescindation of indicator,using the specific tag to make the corresponding of blocks between description and acces point,employment of katakana and Romani zation of Japanese script respectively in pronunciation of access point block,an d specific design for items of book title and author of each valume in the multi -valume publication in description block.Based on ISBD(M)of the items about titl e and area of statement of responsibility, edition, publicat ion and distribution, physical description, and series area, a comparison was made between JA PAN/MARC and CNMARC, which indicated that computerized book in Japanese was feasible by indiscriminate application with CNMARC.
During the retrospective cataloguing process many libraries may face the same problem;to input the items of card catalog one by one into the new sys tem of directly read the concerning items from the commercial bibliography datab ase through the retrieving point ISBN of the old circulation system in operation .If reading in the mode of batch processing,then the retrospective cataloguing i s of high speed,low cost and high quality,But the prerequisite is that the ISBN of the source and target databases have the same digits. But the ISBN of some old circulat ion system in use has a length of 10- character, the commerical bibliography database 13- character. Thus, this paper introduces the recovery calculation method to tackle this problem.
How to calculate the price of each bounded volume of the back number of periodicals is still a general problem in the running work of most libraries .This paper presents a computer program used by the library of the Beijing Inst itute of Technology to facilitate solving this problem.The program as well as th e operational process is described in details.
This article has introduced the concept of computer literacy,multim edia literacy and network literacy and their relationship with the traditional l iteracy.It has also pointed out that it′s a new role for library and information institute to educate user of information in computer literacy,multimedia literacy,network literacy.