To facilitate exploration of the massive amount of digital information, new ways of content representation are required. This article presents several examples and prototype systems that show how information visualization techniques can be applied for content representation. Through the power of information visualization, visual content maps can be created automatically. These maps extract and define information patterns, categories, and relationships among authors, concepts, or other information entities. The maps also support various interactive functions for the users to explore concept relationships and the underlying information. The paper also raises many questions related to content measurement, content structures, and visual displays of content and content structures. It is believed that understanding these issues will represent a significant step toward semantic maps for information access.
Majority of the available digital information are associated with some location or regions on the Earth. Traditional visual interfaces to digital libraries were not designed to deal with the unique geospatial characteristics of data, nor did they take full advantage of the georeferencing as a mechanism for browsing and retrieving information. This paper highlights the trends of visual interfaces to geospatial information, and suggests major challenges towards effective visualization of multimedia geospatial document space. Citing recent research efforts, we review the attempts to integrate document visualization (developed in information science) with geovisualization techniques (developed in geographical information science) to support science, information access and decision making. We conclude by a set of spatial cognitive principles that influence future development of such visual interfaces to geographic information.
Automatic methods for document analysis are particularly necessary in the Internet space. Indexing terms identify members of a class but constrain discrimination amongst them. The average frequency of a term over the document set is a simple function with an interesting visual friendly property which an interface could exploit for use
rs to easily manipulate and find the context of content bearing terms in the full text. This paper describes anexperiment that confirms some useful possibilities of this approach. Some implications for visualization are listed to help users analyze document sets and in the construction of contextual information.
This paper based on the practice of the project, researches the means of dealing with pure text, which including the content identification and pick-up, associated modification etc, and realized the Pure Text Parser System with Visual C#. NET and Parameter Configuration System based on pure text with Java. At last, combining the application, summarizes the characteristic of technique that based on pure text, and demonstrates the value of it.
The paper, based on the model of “block of time” cost calculator, makes a simple model to accommodate for the library practice of virtual reference services in our country.
Based on researching the university's library in constructing of concentrative storage, the article summarizes the situation of constructing of concentrative storage, disscusses the fallacy of constructing of SAN and the methods forwards the situation.
This paper introduces one kind of new intelligence information carrier iButton, describes its principle of work and characteristic, introduces the application of iButton in our library situation, and unfoldes its broad application prospect.
Based upon characteristics of Mobile Agent, this article constructs a personalized intelligent information-searching system. Customer submits search information to Information Mobile Agent(IMA) through Personal Intelligent
Agent(PIA), and then IMA moves to destination according to the itinerary scheme,where IMA communicates with information warehouse according to the searching-information IMA brought. When the searching is completed, ISA submits the consequence to IMA, and IMA migrates the next host or goes back. Such an Agent society may provide more efficient information services.
This paper introduces primarily a core work of Web topic information gathering system that we designed——identifying the topic of Web information, the algorithm begins from structuring professional topic dictionary,
analyses and considers well with the characteristics of Web page text, It increases consumedly the efficiency and accuracy of the system,this algorithm will be applicable to the other topic fields.
This paper introduces characteristics and advantages of mobile agents.It also discusses the model, example, evaluation criteria and mobile agent planning of distributed information retrieval based on mobile agent. The author points out that the application of mobile agent to distributed information retrieval is a effective way to search a large amount of distributed information in Web environment.
Introduce the development history of RSS Metadata and it's actual applications at present , particularly describe RSS's definiens and properties, this article also analyzes main requirements during building center portal, and where RSS Metadata can be used, In the end , give a case of center portal.
Based on W3C guidelines, this paper describes the significance, requirements, conformance levels, principles and check-points of Authoring Tool and User Agent Accessibility Guidelines in network environment.
The article introduces the foundational concept and working principle of Mylibrary system which the important form of libraries individual service ,and four special mylibrary architectures and service functions of foreign libraries are c
ompared and analysed ,and brings forward the tendencies of mylibrary individual information service system.
This paper samples some articles that appeared in five core periodicals of the latest years, undertook a quantitive study of the specificity of net citations (investigating the trend of the development、 the distribution of domain names、the formats of the papers and the effect of net linking), and finally provides a necessary and statistical support for the regulation of scientific management.
The risks in technological innovation of information enterprises in China mainly include policy risk , economical risk, technological risk, marketing risk, resource risk and so on. On the basis of analyzing these risks, an evaluating system and method of risks in technological innovation of information enterprises in China is designed and discussed, and the preventive measures of risks in technological innovation of information enterprises in China are put forward.
Building an enterprise knowledge warehouse (EKW) with perfect functions is a basic of implementing enterprise knowledge management effectively. This paper discusses the concept and functions of EKW, suggests an architecture of EKW and explores some key technologies of building EKW.
With the rapid development of Internet, some problems of Intelligent Property in domain name system running become more and more serious. Chasing for benefits, some websites use register sheet or IE browser to take possession of information storage space in PCs, which breaks the law. To solve the problem, the best way is to establish related laws to protect proper competition.
Based on the result of “User's Questionnaire” of Beijing Forestry University, the author makes an analysis of the current use of the multimedia reading room and gives some suggestions on how to deepen the service function of multimedia reading room in colleges and universities.
The article narrates the groping production in personalized information service of Teda Library. It suggests the methodology for personalized information system's development and improvement according to practical experience on the two personalized information service systems: Personalized Information Push System and Mylibrary System.
This paper introduces the element of personal document and personal document model and the organizing form in personal digital library and realizes added-values information service by active reading.