Search (55 results, page 1 of 3)

  • × theme_ss:"Hypertext"
  1. Falquet, G.; Guyot, J.; Nerima, L.: Languages and tools to specify hypertext views on databases (1999) 0.09 
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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
  2. Streitz, N.A.: Hypertext: ein innovatives Medium zur Kommunikation von Wissen (1990) 0.04 
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  3. E-Text : Strategien und Kompetenzen. Elektronische Kommunikation in Wissenschaft, Bildung und Beruf (2001) 0.04 
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    Abstract
    Elektronische Produktion, Verbreitung und Rezeption von Texten - deren integrative Wechselbeziehungen eingeschlossen - verändern unausweichlich unsere Forschungs-, Lernund Arbeitsbedingungen. In diesem Wandel braucht es Orientierung, Strategien und Kompetenzen. Dieser Band bietet sie in interdisziplinärer Vielfalt. Teil 1 befaßt sich mit Wissen und Wissenschaft. Er spannt den Bogen der Medientheorie von der Antike bis ins 21. Jahrhundert und bietet einen konstruktivistischen Ansatz für das Wissensmanagement. Textsortenkonventionen und Hypertext sind ebenso Schwerpunkte wie empiriegestützte Guidelines und innovative Werkzeuge für das wissenschaftliche Arbeiten. Teil 2 ist Lernumgebungen gewidmet. Reflexionen zur Theorie von hypermedialem Lernen und Kognition werden ergänzt durch ein Produktionssystem für interaktive Software. Eine Felduntersuchungvergleicht Varianten kooperativen Schreibens, ein Schreibdidaktik-Projekt vermittelt zwischen Studium und Beruf. Teil 3 vereint unter dem Titel «Domänen der Praxis» empirische Erhebungen zur Text(re)produktion und elektronischen Kommunikation im Berufsalltag, die Konzeption eines Werkzeugs für die Übersetzungsarbeit und den Ausblick auf kulturspezifische Web-Sites in der Wirtschaft.
    Date
    12. 8.2012 18:05:22
  4. Cavallaro, U.: HIFI: hypertext interface for information : multimedia and relational databases (1993) 0.04 
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    Abstract
    HIFI (ESPRIT project 6532) creates a set of tools to allow a reader to access a large body of heterogeneous information, managed by external databases created beforehand, through a hypertext interface. The HIFI approach is a model-based description of the hypertext application as it appears to the reader. A declarative and/or operational mapping translates hypertext operations (search, queries and navigation) into operations on the underlying information base and also 'materialises' hypertext objects, using objects of the underlying databases. The system supports hypertext development. Illustrates this with the cooperation of end users as partners or project sponsors
  5. Schreiweis, U.: Hypertextstrukturen als Grundlage für integrierte Wissensakquisitionssysteme (1993) 0.03 
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    Date
    19.10.1995 10:22:53
  6. Maurer, H.: Object-oriented modelling of hyperstructure : overcoming the static link deficiency (1994) 0.03 
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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
  7. Hammwöhner, R.; Kuhlen, R.: Semantic control of open hypertext systems by typed objects (1994) 0.03 
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    Abstract
    The C(K)onstance Hypertext System (KHS) is an elaborated example of an open hypertext system. Open hypertext systems combine heterogeneous resources and different hypertext applications such as e-mail, text and image hypertexts with access to online databases or other information resources. These hypertexts, to which heterogeneous users have access, grow steadily in size. This paper takes an object-oriented approach and proposes a rigorous typing of hypertext objects to overcome the problems of open hypertext. The advantage of this typing is shown on an e-mail hypertext as a special application of the KHS system. KHS is written in Smalltalk and is being developed on UNIX-machines
  8. Schwab, P.: Wissensvermittlung und neue Technologien : ein medienpsychologischer Beitrag (1996) 0.03 
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    Content
    Die Wissensklufthypothese: eine Kurzskizze - Sozialstruktur - Wissen und Wissensklüfte - Informationsfluß - Multimediale Technologie und Konzepte - Hypertext und Hypermedia - Cyberspace und Virtuelle Realität (VR) - Medienpsychologisches 'Know How' als Navigationshilfe
  9. Aßfalg, R.: Integration eines offenen Hypertextsystems in den Internet-Mehrwertdienst World Wide Web : ein Ansatz unter Verwendung eines objektorientierten Datenbanksystems (1996) 0.03 
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    Date
    22. 2.1997 19:40:31
  10. Menges, T.: Möglichkeiten und Grenzen der Übertragbarkeit eines Buches auf Hypertext am Beispiel einer französischen Grundgrammatik (Klein; Kleineidam) (1997) 0.03 
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    Date
    22. 7.1998 18:23:25
  11. Ellis, D.; Furner-Hines, J.; Willett, P.: On the creation of hypertext links in full-text documents : measurement of inter-linker consistency (1994) 0.03 
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    Abstract
    In important stage in the process of retrieval of objects from a hypertext database is the creation of a set of inter-nodal links that are intended to represent the relationships existing between objects; this operation is often undertaken manually, just as index terms are often manually assigned to documents in a conventional retrieval system. Studies of conventional systems have suggested that a degree of consistency in the terms assigned to documents by indexers is positively associated with retrieval effectiveness. It is thus of interest to investigate the consistency of assignment of links in separate hypertext versions of the same full-text document, since a measure of agreement may be related to the subsequent utility of the resulting hypertext databases. The calculation of values indicating the degree of similarity between objects is a technique that has been widely used in the fields of textual and chemical information retrieval; in this paper we describe the application of arithmetic coefficients and topological indices to the measurement of the degree of similarity between the sets of inter-nodal links in hypertext databases. We publish the results of a study in which several different of links are inserted, by different people, between the paragraphs of each of a number of full-text documents. Our results show little similary between the sets of links identified by different people; this finding is comparable with those of studies of inter-indexer consistency, where it has been found that there is generally only a low level of agreement between the sets of idenx terms assigned to a document by different indexers
  12. Iske, S.: Vernetztes Wissen : Hypertext-Strategien im Internet (2002) 0.03 
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    Abstract
    Hypertext ist der Faden, der das Wissensnetz knüpft. Hypertext eröffnet qualitativ neuartige Formen der Darstellung und des Zugangs sowie spezifische Aktivitäten und Umgangsformen mit Information und Wissen. Damit ist Hypertext die Schlüsseltechnologie des neuen Mediums Internet und gewinnt im Bildungskontext zunehmend an Bedeutung. Wie findet man sich in stark vernetzten medialen Umgebungen zurecht? Was ist zu beachten, wenn man selbst Informationen, Daten und Dokumente mittels Hypertext vernetzen will? Welche Besonderheiten gelten dabei für Texte, multimediale Anwendungen, Lernprogramme, Websites und Portale? Dieses Buch beantwortet solche Fragen. Es beschreibt die Möglichkeiten von Hypertext zum Erkunden und Gestalten vernetzter Strukturen. Das neuartige Potenzial der Vernetzung wird dabei aus bildungstheoretischer Perspektive untermauert. Damit bietet es wertvolles Hintergrundwissen für alle, die sich auf das Internet als Bildungsmedium einlassen wollen.
    Series
    Wissen und Bildung im Internet ; Bd. 5
  13. Güven, S.; Feiner, S.: ¬A hypermedia authoring tool for augmented and virtual reality (2003) 0.03 
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    Abstract
    Most existing hypermedia authoring systems are intended for use on desktop computers. These systems are typically designed for the creation of 2D documents and therefore employ 2D authoring mechanisms. In contrast, authoring systems for nontraditional multimedia/hypermedia experiences for 3D virtual or augmented worlds focus mainly on creating separate media objects and embedding them within the user's surroundings. As a result, linking these media objects to create 3D hypermedia is a tedious manual task. To address this issue, we present an authoring tool for creating and editing linked 3D hypermedia narratives that are interwoven with a wearable computer user's surrounding environment. Our system is designed for use by authors who are not programmers, and allows them to preview their results on a desktop workstation, as well as with an augmented or virtual reality system.
  14. Gallagher, L.; Furuta, R.; Stotts, P.D.: Increasing the power of hypertext search with relational queries (1990) 0.03 
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    Abstract
    Describes an SGL relational database schema for representing the objects in HyperCard, along with a technique for automatically populating this schema from a HyperCard stack using the facilities in HyperTalk with calls to the database manager. The stabndard relational database query language SQL can then be used to perform more general hypertext searches than are possible with the string search feature found in most hypertext browsing environments. These techniques, although demonstrated specially usinf HyperCard and Oracle for Macintosh, are generally applicable to a wide range of hypertext systems and relational databases
  15. Bornman, H.; Solms, S.H.v.: Hypermedia, multimedia and hypertext : definitions and overview (1993) 0.03 
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    Abstract
    Provides definitions of hypertext, multimedia and hypermedia. Discusses the advantages and disadvantages of hypermedia systems. Outlines a knowledge based approach in developing a hypermedia system using frames (objects), slots and relations between them. Inheritance is used to project features from one object to another. Discusses the presentation of information. Compares hypermedia and databases. Examines the reading and processing of hypermedia information according to the interaction method; structural responsibility and the extent of orientation
  16. Hekmatpour, A.: ¬An adaptive presentation model for hypermedia information systems (1995) 0.03 
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    Abstract
    Presents a 3 facet adaptive authoring model for online hypermedia information systems. It provides spatial reconfiguration of the presentation objects based on activation frequency, information content customization based on author specified criteria, and hypergraphic network optimization based on usage. Discusses the theory underlying the model, its architecture and hypermedia structure, and provides a preliminary quantitative measure and evaluation of its impact on authoring time, as well as study time
  17. Colazzo, L.; Molinari, A.: Using hypertext projection to increase teaching effectiveness (1996) 0.03 
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    Abstract
    Examines the use of hypertexts as a tool to present educational material by projecting its nodes. The reader becomes a spectator who is passively subject to the navigation effected by the speaker. The author extends his influence to the reading process by navigating according to his own requirements. Presents a prototype developed specifically to increase the efficiency of a hypertext used for this form of communication, allowing the teacher to choose which objects will be projected and when they will appear
  18. Peters, R.W.: Dokumentenmanagement mit Hypertext (1995) 0.03 
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    Abstract
    Der Umgang mit dem weltweit online verfügbaren Wissen wird in Chaos und Frustration enden, wenn es nicht gelingt, dem Suchenden leistungsfähige Hilfsmittel für das Navigieren in großen Datenbeständen zur Verfügung zu stellen. Der vorliegende Beitrag macht deutlich, daß hierfür die klassischen Retrievalmöglichkeiten um hypertextorientierte Suchmechanismen zu ergänzen sind. Dies wurde in konsequenter Weise in einem Projekt der Bayer AG realisiert. Hier galt es, alle externen und internen Informationen und Softwarehilfsmittel für die Unterstützung der Arbeit des Ingenieurs elektronisch zu verwalten und online verfügbar zu halten
  19. Charnock, E.: Task-based method for creating usable hypertext (1994) 0.02 
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    Abstract
    Large hypertext systems have been many benefits but can be difficult to build and use. To help overcome these obstacles, a method under development at Hewlett-Packard assists authors in creating usable hypertext. A Wizard of Oz experiment, to see what users liked and disliked, showed the need for a set of hypertext construction rules to ensure usability. Following these rules, and with computer assistance, authors are expected to do a tasks analysis of users' activities, to identify critical objects and create content nodes for them, to create links between nodes within clearly defined and cognitively justified limits, and to conduct usability tests on the resulting hypertext volume. The authoring system described has been developed for the HP help system, which has been adopted as the common help delivery system for developers of Common Open Systems Environment on Unix-like platforms
  20. Bra, P. de: Hypermedia, de opvolger van boek, film en video (1996) 0.02 
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    Abstract
    The concept of a system combining information in both textual and pictorial format was first suggested by Vannevar Bush in 1945. The present hypermedia system was originally developed by Tim Berners Lee at CERN in 1989 and provides access to brief documents, which are interlinked and contain text, images, sound and video. The system has become widely available through the WWW, which enables users to 'navigate' through related information. Recent developments include the ability to view objects in virtual reality and the automatic generation of document links

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