Constructing Geographic Digital Libraries using a Hypermedia Framework

This paper presents an object oriented hypermedia database framework for designing and building digital libraries, which are treated as enhanced hypermedia applications. It is based on combining and extending results from two domains: the navigation characteristics of hypertext systems, and the view mechanism and the persistent storage management facility of an object oriented database management system. As a result, users can alternate between two integrated types of interaction modes. The hypertext dimension of the framework allows navigation via static and dynamic hyperlinks; the object oriented database support enables querying by content and metadata management. The framework includes still a digital library design methodology that guides the implementation of digital libraries over the OODBMS. This proposal integrates hypermedia and DL concepts to a database environment, being instantiated on the realm of geographic data.     

Automatic authoring and construction of hypermedia for information retrieval

This paper describes the complete process and a tool for the automatic construction of a multimedia hypertext starting from a large collection of multimedia documents. Through the use of an authoring methodology, the document collection is automatically authored, and the result is a multimedia hypertext, also called a hypermedia, written in hypertext mark-up language (HTML), almost a standard among hypermedia mark-up languages. The resulting hypermedia can be browsed and queried with Mosaic, an interface developed in the framework of the World Wide Web Project. In particular, the set of methods and techniques used for the automatic construction of hypermedia is described in this paper, and their relevance in the context of multimedia information retrieval is highlighted.     

超级媒体动态链接的开放模型

本简单介绍了超级本及超级媒体的概况,分析了现有超级本系统存在的问题,作设计了超级媒体动态链接的开放模型－ＤＬＯＨＭ,解决了上述问题,同时ＤＬＯＨＭ利用“页”作结点,采用结点和链分离的方法建立了系统的数据模型,利用“页”结构,使得各种媒体信息共存于一页之中,做到了声、、图一体化。     

Linking Active Anchors: A Stage in the Evolution of Hypermedia

With the advent of multimedia technology, hypertext has evolved into hypermedia, in which the elements that are linked together can include animations, video clips, music recordings, and database queries. The critical hypertext function of link traversal must undergo a parallel evolution to support the dynamic aspects of these new types of information.

This paper introduces the concept of active anchors within dynamic information and explores the design issues involved in linking to active anchors. Scenarios from our hypermedia system, Intermedia, illustrate the use of active anchors in a university setting. General conclusions recommend characteristics that may facilitate the implementation of this concept in other hypermedia systems.     

Hypermedia as an Interpretive Act

This essay will explore the epistemological foundations of hypertext and hypermedia, focusing on the need for an especially acute awareness of cognitive issues in the design and execution of academic data bases. Since hypertext as a technology has the potential to organize massive bodies of primarily academic information, we will address a number of basic interpretive and pedagogical concerns about the interpretive ‘freighting’ which such electronic intellectual archives might unintentionally produce.

At this stage of development, there is a great deal of interest and enthusiasm from the computer community in hypertext and hypermedia, but we must not ignore the ideological and hermeneutical implications of what may appear to be simple technical decisions. This essay will explore some of the implications of such ‘technical decisions’, suggesting that academicians as ‘gatekeepers’ of knowledge, must be aware of this cognitive overhead and consciously incorporate strategies in future hypertext databases which attempt to clarify their creators' critical assumptions. While hermeneutical neutrality is not possible in this cognitive universe, future hypertext and hypermedia systems must be self-consciously aware of cognitive issues.     

PROBLEM-SOLVING SUPPORT FOR TQM A Hypertext Approach

New IS technology is contributing to continuous quality improvement throughout the organization. Hypertext and hypermedia offer new ways for decision makers to gain easy and relevant access to information. By combining hypertext with total quality tools, decision makers are able to explore the richness of data bases in more creative and useful ways. This article describes how you can develop a hypertext system that can help employees improve their job performance through better problem solving.     

The HEFTI Model of Text to Hypertext Conversion

Manual authoring is a major bottleneck in the more widespread use of hypertext. The authoring process has been shown to be slow and labour intensive and hence expensive. Yet there already exists a large body of printed material which can be adopted for hypertext and hypermedia. In the project HEFTI (Hypertext Extraction From Text Incrementally), we are exploring methods of converting printed text into hypertext. We have developed a model which breaks the conversion process into a sequence of six modular components. The output of the conversion process are hypertext documents in a general specification language. In this paper we detail the model and our implementation of the HEFTI model. We believe the system demonstrates the validity of the model as it was used to convert a medium-sized technical textbook into hypertext within a (long) working day. We furthermore discuss two usability experiments that we carried out on HEFTI produced documents. In the conclusion of this paper we look at some open research issues.     

基于面向对象技术的多媒体开发工具YH－MMDT

ＹＨ－ＭＭＤＴ（ＭｕｌｔｉＭｅｄｉａＤｅｖｅｌｏｐｍｅｎｔＴｏｏｌｋｉｔ）是针对多媒体作品的特点，并基于面向对象技术而设计的一个多媒体开发工具包。我们提出了一个新的多媒体作品管理模型ＷＮＣＨ，该模型以作者／读者辩证统一的观点为基本观点，以结点对象为基本信息单位，以内容对象处理多媒体信息，以热区对象处理超链接功能，进而形成了一组完整的多媒体开发工具。本文首先分析了多媒体作品的特点，然后介绍了ＹＨ－ＭＭＤＴ的体系结构，并详细描述了超媒体作品管理模型ＷＮＣＨ，最后讨论了ＹＨ－ＭＭＤＴ系统的主要管理功能（如创作、阅读、导航等）和技术。     

一种基于超媒体技术的中学化学CAI软件的设计

通过系统设计思想、体系结构、超文本和超媒体的应用的描述 ,介绍了基于超媒体技术的中学化学CAI软件系统的设计过程 ,重点论述了该系统的设计思想、体系结构和关键技术的运用。     

Modeling the dynamic behavior of hypermedia applications

Hypermedia applications can be defined as collections of interactive and multimedia documents that are organized as a hypertext net. The development of hypermedia applications poses specific problems, such as the need for modeling sophisticated navigational structures, interactive behaviors, and harmonic presentations involving the synchronization of contents. Moreover, the increasing popularity of Internet based systems has put stress on the lack of mechanisms to formally specify security policies when designing hypermedia applications. Traditional design models and methodologies are not suitable for hypermedia applications and the up-to-now developed hypermedia oriented models do not cover the whole set of design needs. In this context, we present Labyrinth, a hypermedia oriented model providing formal elements to describe the static structure and dynamic behavior of this kind of nonlinear, multisensory, and interactive applications