Search (113 results, page 1 of 6)

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Abstract

Current hypertext systems have been widely and effectively used on relatively small data volumes. Explores the potential of database technology for aiding the implementation of hypertext systems holding very large amounts of complex data. Databases meet many requirements of the hypermedium: persistent data management, large volumes, data modelling, multi-level architecture with abstractions and views, metadata integrated with operational data, short-term transaction processing and high-level end-user languages for searching and updating data. Describes a system implementing the storage, retrieval and recall of trails through hypertext comprising textual complex objects (to illustrate the potential for the use of data bases). Discusses weaknesses in current database systems for handling the complex modelling required

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Abstract

Considers the reason why CD-ROM's promise of a large range of legal data bases has, to some extent, been limited. The new range of CD-ROM hypertext data bases, produced by West Publishing Company, are discussed briefly.

Source

Information today. 6(1989) no.4, S.22-24

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Abstract

Reports on research which aims to discover the path patterns through which users retrieve information in hypertext systems. Takes a pragmatic approach in which the use of a hypertext information retrieval system by a group of subjects was monitored to collect path pattern data. Two frequency distribution models were developed and tested using these data. Path length followed a shifted negative minimal distribution. The influence of search tasks on path patterns was examined and found to have no effect. These models can provide a background for examination of systems via stimulation studies

Source

Information processing and management. 30(1994) no.1, S.131-140

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Abstract

Describes a project which modelled the human reading of a printed maintenance manual and designed and implemented a hypertext version of the document using Apple Computer's HyperCard. Since few fully specified hypertext systems have been deployed, the research was undertaken to build a platform on which notions about the efficacy of nonlinear text processing for a specific application could be tried out. Describes a stackware version of a portion of an aircraft maintenance manual and considers issues of data storage models, user interface, and information retrieval methods for online text. These elements - among others - are the essence of the new rhetoric for non-sequential text

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Abstract

Discusses the potential of hypertext for creating all manner of information resources to fill the gaps where free text and structured database systems are inappropriate. Describes the tools required to create and distribute a variety of hypertext information resources, all available, affordable and easy to use. These include: the Microsoft Windows graphical user interface and Windows help system and special features offered: a Rich Text Format word processing program (Word for Windows) and Microsoft Windows Help Compiler for authoring Windows Help hyperdocuments; and the OrgMap Help data file. Outlines the limitations of hypüerdocument information resources

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Source

Proceedings of the Clinic on Library Applications of Data Processing: held April 5-7 1992 at University of Illinois at Urbana-Champaign. Ed. by L.C. Smith and P.W. Dalrymple

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Content

Enthält u.a.: WELSCH, L.A.: Multimedia and hypermedia: model and framework. - BRYAN, M.: Standards for text and hypermedia processing. - POPHAM, M.G.: Use of SGML and HyTime in UK universities. - SCHELLER, A.: The Open Document Architecture (ODA) and its HyperODA extensions. - FROMONT, J.: State-of-the-art regarding the various standards for contents related to text, still images, sound and video. - BROEKMAN, H.J.D.: Effective communication with interactive media

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Abstract

We present a declarative language for the construction of hypertext views on databases. The language is based on an object-oriented data model and a simple hypertext model with reference and inclusion links. A hypertext view specification consists in a collection of parameterized node schemes which specify how to construct node and links instances from the database contents. We show how this language can express different issues in hypertext view design. These include: the direct mapping of objects to nodes; the construction of complex nodes based on sets of objects; the representation of polymorphic sets of objects; and the representation of tree and graph structures. We have defined sublanguages corresponding to particular database models (relational, semantic, object-oriented) and implemented tools to generate Web views for these database models

Date

21.10.2000 15:01:22

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Abstract

"Krajewski draws on recent German media theory and on a rich array of European and American sources in this thought-provoking account of the index card as a tool of information management. In investigating the road from the slips of paper of the 16th century to the data processing of the 20th, Krajewski highlights its twists and turns--failures and unintended consequences, reinventions, and surprising transfers."--Ann M. Blair, Henry Charles Lea Professor of History, Harvard University, and author of Too Much to Know: Managing Scholarly Information before the Modern Age -- Ann Blair "This is a fascinating, original, continuously surprising, and meticulously researched study of the long history of the emergence of card systems for organizing not only libraries but business activities in Europe and the United States. It is particularly important for English language readers due to its European perspective and the extraordinary range of German and other resources on which it draws." --W. Boyd Rayward, Professor Emeritus, Graduate School of Library and Information Science, University of Illinois at Urbana-Champaign -- W. Boyd Rayward "Markus Krajewski has done the history of cataloguing and the history of information management a considerable service: I recommend it highly." -- Professor Tom Wilson, Editor-in-Chief, Information Research

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Date

7. 3.1999 14:22:45

Source

Information processing and management. 34(1998) nos.2/3, S.309-323

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Source

Information processing and management. 29(1993), no.3

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Abstract

With the growth of hypertext and multimedia applications that support and encourage browsing it is time to take a penetrating look at browsing behaviour. Several dimensions of browsing are exemined, to find out: first, what is browsing and what cognitive processes are associated with it: second, is there a browsing strategy, and if so, are there any differences between how subject-area experts and novices browse; and finally, how can this knowledge be applied to improve the design of hypertext systems. Two groups of students, subject-area experts and novices, were studied while browsing a Macintosh HyperCard application on the subject The Vietnam War. A protocol analysis technique was used to gather and analyze data. Components of the GOMS model were used to describe the goals, operators, methods, and selection rules observed: Three browsing strategies were identified: (1) search-oriented browse, scanning and and reviewing information relevant to a fixed task; (2) review-browse, scanning and reviewing intersting information in the presence of transient browse goals that represent changing tasks, and (3) scan-browse, scanning for interesting information (without review). Most subjects primarily used review-browse interspersed with search-oriented browse. Within this strategy, comparisons between subject-area experts and novices revealed differences in tactics: experts browsed in more depth, seldom used referential links, selected different kinds of topics, and viewed information differently thatn did novices. Based on these findings, suggestions are made to hypertext developers

Source

IEEE transactions on systems, man and cybernetics. 22(1992) no.5, S.865-884

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Abstract

Discusses the decision points and major implementation steps for deploying a client server full text image retrieval system within a large aerospace manufactoring organisation. The changes in interface brought about by moving from workstation platform to client server, and combining a controlled vocabulary data base with a full text data base are described

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Abstract

The Canto hypertext data model is chracterized by a hierarchical scheme mechanism that allows a predetermined, open-ended scheme to be embedded in the hyperdocument. Canto uses 2 types of nodes: concept nodes, which provide organizational structure, and information nodes, which contain text and other data. Describes the model, explains how it reduces user disorientation and discuss the most important features. Presents a formal specification of Canto's functionally and discusses the scheme definition language that a hypertext system designer uses to establish a hypertext scheme. Presents the scheme manipulation language which allows for alterations to the scheme and data. Describes a test conducted to determine the usability of hypertext systems built using Canto and discusses related work

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Abstract

Although the object-oriente paradigm is well suited for modelling self-contained independent objects, it is not suited for modelling persistent relations (static links) between abstract data objects. At the same time, the concept of computer-navigable links is an integral part of hypermedia paradigm. In contrast to multimedia, where the object-oriented paradigm plays a leading role, the 'static link' deficiency considerably reduces the application of object-oriented methods in hypermedia. Presents a new logical data model (the HM Data Model) which incorporates the well-known principles of object-oriented data modelling into the management of large-scale, multi-user hypermedia databases. The model is based on the notion of abstract hypermedia data objects called S-collections. Computer-navigable links approach not only overcomes the static link deficiency of the object-oriented paradigm, but also supports modularity, incremental development, and flexible versioning, and provides a solid logical basis for sematic modelling

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Abstract

The Multimedia Information Presentation System (MIPS) will allow end users to browse multimedia information presented in a user friendly and consistent manner. In its most powerful configuration, it will allow the end user to formulate queires which are interpreted, analyzed, and dispatched by the system to heterogeneous distributed external data sources, and to view a coherent and customized presentation of the data retrieved as answers. Data are stored in, or referenced from, a set of hyperdocuments conforming to the ISO standards HyTime and SGML. The hyperdocuments constitute an information web which may be dynamically expanded to accomodate retrieved data. The web navigation structure, structure of information nodes, specification of presentation mechanisms, specification of presentation tools, and data are separable and potentially reusable for different applications, different activities within an application, or different environments. Outlines the intended functionality and the design of MIPS, with particular reference to the structure and function of the hypermedia web and the role of the knowledge base system module in its dynamic expansion

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Source

Information processing and management. 29(1993) no.3, S.283-286

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Source

Information processing and management. 29(1993) no.3, S.287-298

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Source

Information processing and management. 29(1993) no.3, S.299-312

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Source

Information processing and management. 29(1993) no.3, S.313-324