-
Carr, L.; Davis, H.; Hall, W.: Experimenting with HyTime architectural forms for hypertext interchange (1993)
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- Abstract
- Describes Microcosm an open hypermedia system developed at the Univ. of Southampton. In Microcosm no information concerning links is held in documents; all link information is held in external linkbases which contain details about the source and destination anchors of the links. Microcosm is also composed of independent components which communicate by passing messages. As working in such an open environment reduces system response work is being carried out in to the use of Microcosm as a hypertext onto other delivery systems. As an intermediate stage HyTime based document structures which describe Microcosm hypertext, especially linkbases are currently being produced. A process which will convert a Microcosm dataset into this representation and then further translation programs to convert the representation to run on other hypermedia delivery systems is being defined
-
Groenbaek, K.; Trigg, R.H.: From Web to workplace : designing open hypermedia systems (1999)
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-
Lehner, C.: Hypertext und World Wide Web als Hilfen für einen Programmierkurs in Prolog (1998)
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- Abstract
- Der vorliegende Beitrag zeigt auf, wie sich Neue Medien zur Verbesserung der Qualität der universitären Lehre einsetzen lassen. Exemplarische Vertreter der Neuen Medien sind in diesem Zusammenhang vor allem Hypertext und das auf Hypertext basierende World Wide Web, das dem Internet seit Beginn der Neunziger Jahre zu dem enormen Popularitätsschub verholfen hat. Das WWW bringt nicht nur die vielbeschworene 'Informationsflut' mit sich, sondern es liegt durch das WWW auch ein Werkzeug vor, um Informationen und Wissen optimal zu organisieren und aufzubereiten. Exemplarisch wird an einem Online-Programmierkurs verdeutlicht, wie sich Informations- und Wissensressourcen mit Hilfe der Neuen Medien besser strukturieren und produktiver einsetzen lassen
-
Barab, S.A.; Bowdish, B.E.; Lawless, K.A.: Hypermedia navigation : profiles of hypermedia users (1997)
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- Abstract
- In this study we explored the use of logfiles as a window into the process of hypermedia navigation. Although there is a growing body of research addressing theoretical and design issues related to open-ended, non-directive technologies such as hypermedia, relatively few studies have attempted to explain navigational performance. 66 undergraduate students used a multidimensional, computer-based kiosk that could be explored in a nonlinear fashion to find information in response to one of two information retrieval tasks (simple or complex). Cluster analysis was used to generate performance profiles derived from navigational data captured in log files. Analyses of within cluster performance profiles, combined with external validation criteria, led to the classification of 4 different types of navigational performance (models users, disenchanted volunteers, feature explorers, and cyber cartographers). These characterizations were consistent with information retrieval users and the external criteria (self-efficacy, perceived utility, and interest). For example, individual who appeared to fake the time to learn the layout of the kiosk also had the highest self-efficacy, while those who used the help screen and watched the most movies had the lowest self-efficacy. Results also demonstrated an interaction between various individual navigational profiles and type information retrieval task
-
Lennon, J.A.: Hypermedia systems and applications : World Wide Web and beyond (1997)
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- Abstract
- This is the first comprehensive book on hypermedia nd the WWW that icludes features of the 2nd generation systems. Definitions, history, current technology and problems, leading-edge initiatives, future applications, all these are seen as an unfolding of a millenial communication medium that is not serving but involving even the non-technical person in a very technical world. Much of the promise of hypermedia lies in its applications to education, and this receives prominence in the book. The new hypermedia system 'HyperWave' is described in detail. The book's vision, organization, and easy-to-read style make it suitable as a source for information for the practitioner and the general reader. It may also serve both as a reference book for researchers and as a textbook
- LCSH
- World Wide Web (Information retrieval system)
- RSWK
- World wide web
- Subject
- World wide web
World Wide Web (Information retrieval system)
-
Heo, M.; Hirtle, S.C.: ¬An empirical comparison of visualization tools to assist information retrieval on the Web (2001)
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- Abstract
- The reader of a hypertext document in a web environment, if maximum use of the document is to be obtained, must visualize the overall structure of the paths through the document as well as the document space. Graphic visualization displays of this space, produced to assist in navigation, are classified into four groups, and Heo and Hirtle compare three of these classes as to their effectiveness. Distortion displays expand regions of interest while relatively diminishing the detail of the remaining regions. This technique will show both local detail and global structure. Zoom techniques use a series of increasingly focused displays of smaller and smaller areas, and can reduce cogitative overload, but do not provide an easy movement to other parts of the total space. Expanding outline displays use a tree structure to allow movement through a hierarchy of documents, but if the organization has a wide horizontal structure, or is not particularly hierarchical in nature such display can break down. Three dimensional layouts, which are not evaluated here, place objects by location in three space, providing more information and freedom. However, the space must be represented in two dimensions resulting in difficulty in visually judging depth, size and positioning. Ten students were assigned to each of eight groups composed of viewers of the three techniques and an unassisted control group using either a large (583 selected pages) or a small (50 selected pages) web space. Sets of 10 questions, which were designed to elicit the use of a visualization tool, were provided for each space. Accuracy and time spent were extracted from a log file. Users views were also surveyed after completion. ANOVA shows significant differences in accuracy and time based upon the visualization tool in use. A Tukey test shows zoom accuracy to be significantly less than expanding outline and zoom time to be significantly greater than both the outline and control groups. Size significantly affected accuracy and time, but had no interaction with tool type. While the expanding tool class out performed zoom and distortion, its performance was not significantly different from the control group.
-
Maislin, S.: Ripping out the pages (2000)
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- Abstract
- When the Web was invented, it was touted as a novel nonlinear medium for the written word. No longer would we be constrained by linear presentations! Hyperlinks would allow us to jump haphazardly from page to page, chapter to chapter, idea to idea! Texts would no longer need to run from beginning to end! This is misleading. A printed book is also multidimensional and potentially nonlinear. We can open it to any page, from any other page, for any reason. We can open several books at once. In fact, what makes a book special is its combination of linear structure (the order of the words) and nonlinear physicality (the bound papers). This linear/nonlinear duality is enhanced further by the index, which maps linearly sequenced pages in a nonlinear, informationally ordered structure (architecture). In truth, the online environment is crippled by an absence of linear structure. Imagine selecting a hard cover book, tearing off the covers, ripping pages into small pieces, and throwing them in a box. That box is like a computer file system, and the paper scraps are Web documents. Only one scrap can be retrieved from the box at a time, and it must be replaced before another can be accessed. Page numbers are meaningless. Global context is destroyed. And without page numbers or context, what happens to the index?
- Issue
- Beyond book indexing: how to get started in Web indexing, embedded indexing and other computer-based media. Ed. by D. Brenner u. M. Rowland.
-
Aßfalg, R.: Integration eines offenen Hypertextsystems in den Internet-Mehrwertdienst World Wide Web : ein Ansatz unter Verwendung eines objektorientierten Datenbanksystems (1996)
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- Date
- 22. 2.1997 19:40:31
-
E-Text : Strategien und Kompetenzen. Elektronische Kommunikation in Wissenschaft, Bildung und Beruf (2001)
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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
- Series
- Textproduktion und Medien; Bd.7
-
Papers from the workshop on hypermedia and hypertext standards held in Amsterdam, Netherlands, 22-23 April 1993 (1993)
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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
-
Spertus, E.: ParaSite : mining structural information on the Web (1997)
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- Abstract
- Discusses the varieties of link information on the WWW, how the Web differs from conventional hypertext, and how the links can be exploited to build useful applications. Specific applications presented as part of the ParaSite system find individuals' homepages, new locations of moved pages and unindexed information
- Date
- 1. 8.1996 22:08:06
- Footnote
- Contribution to a special issue of papers from the 6th International World Wide Web conference, held 7-11 Apr 1997, Santa Clara, California
-
Yang, C.C.; Liu, N.: Web site topic-hierarchy generation based on link structure (2009)
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- Abstract
- Navigating through hyperlinks within a Web site to look for information from one of its Web pages without the support of a site map can be inefficient and ineffective. Although the content of a Web site is usually organized with an inherent structure like a topic hierarchy, which is a directed tree rooted at a Web site's homepage whose vertices and edges correspond to Web pages and hyperlinks, such a topic hierarchy is not always available to the user. In this work, we studied the problem of automatic generation of Web sites' topic hierarchies. We modeled a Web site's link structure as a weighted directed graph and proposed methods for estimating edge weights based on eight types of features and three learning algorithms, namely decision trees, naïve Bayes classifiers, and logistic regression. Three graph algorithms, namely breadth-first search, shortest-path search, and directed minimum-spanning tree, were adapted to generate the topic hierarchy based on the graph model. We have tested the model and algorithms on real Web sites. It is found that the directed minimum-spanning tree algorithm with the decision tree as the weight learning algorithm achieves the highest performance with an average accuracy of 91.9%.
- Date
- 22. 3.2009 12:51:47
-
Maier-Rabler, U.; Sutterlütti, E.: Hypertextualität als neues Informationsprinzip : Über die Auswirkungen der neuen Informations- und Kommunikationstechnologien auf zukünftige Wissensstrukturen (1997)
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- Series
- Beiträge zur Medien- und Kommunikationsgesellschaft; Bd.1
- Source
- Kommunikationswelten: wissenschaftliche Perspektiven zur Medien- und Informationsgesellschaft. Hrag.: R. Renger u. G. Siegert
-
Milosavljevic, M.; Oberlander, J.: Dynamic catalogues on the WWW (1998)
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- Abstract
- Natural language generation techniques can be used to dynamically produce hypertext dynamic catalogues on the Web, resulting in DYNAMIC HYPERTEXT. A dynamic hypertext document can be tailored more precisely to a particular user's needs and background, thus helping the user to search more effectively. Describes the automatic generation of WWW documents and illustrates with 2 implemented systems
- Date
- 1. 8.1996 22:08:06
- Footnote
- Contribution to a special issue devoted to the Proceedings of the 7th International World Wide Web Conference, held 14-18 April 1998, Brisbane, Australia
-
Sarre, F.; Güntzer, U.; Myka, A.; Jüttner, G.: Maschinelles Lernen von Relationen für Thesauri und Hypertext (1992)
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- Abstract
- Fortschrittliche Informationssysteme stellen ihren Benutzern 2 wichtige Suchmethoden zur Verfügung: die gezielte (Volltext-) Suche und das Navigieren im Objektbestand mit Hilfe von Hypertext-Links. Der Grund, warum diese beiden Konzepte aber auf breiter Basis noch nicht in jedem Informationssystem Anwendung gefunden haben, ist darin zu sehen, daß der manuelle Aufbau von umfassenden Hypertext-Strukturen auf der einen Seite und von großen Thesauri, die den Erfolg von Volltextsuchen wesentlich steigern, auf der anderen Seite bislang enormen Aufwand und damit hohe Kosten verursachte. Langfristig werden Informationssysteme aber nur dann große Akzeptanz bei der Benutzerschaft erzielen, wenn sie ihre Benutzer mit diesen beiden Techniken unterstützen und wenn sie dynamisch neuen Informationsbedürfnissen anpassen können, also lernfähig sind. Für den einzelnen Benutzer ergibt sich daraus der wesentliche Vorteil, daß er von den Recherche-Erfahrungen anderer Benutzer profitieren kann. In diesem Papier stellen wir eine Lernkomponente vor, die für das Hypertextsystem 'HyperMan' an der TU München entwickelt und implementiert wurde. Wir zeigen beispielhaft, wie Volltext-Suchanfragen der HyperMan-Benutzer von der Lernkomponente untersucht werden, um Thesauruseinträge zu gewinnen. Bei der Entwicklung dieser Lerntechniken zum (automatischen) Thesaurusaufbau konnte auf Erfahrungen mit dem lernfähigen Information Retrieval System 'Tegen' zurückgegriffen werden. In dem HyperMan System werden aber nicht nur Beziehungen (Relationen) zwischen Begriffen erlernt, sondern auch zwischen Textstücken. Wir gehen daher auch darauf ein, wie aufgrund einer Analyse des Benutzerverhaltens sowohl neue Hypertext-Links erlernt als auch vorhandene Links, die zuvor von HyperMans Generierungskomponente automatisch erzeugt wurden, modifiziert werden
-
Textproduktion : HyperText,Text, KonText (1999)
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- Series
- Textproduktion und Medien; 5
-
Capps, M.; Ladd, B.; Stotts, D.: Enhanced graph models in the Web : multi-client, multi-head, multi-tail browsing (1996)
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- Abstract
- Richer graph models permit authors to 'program' the browsing behaviour they want WWW readers to see by turning the hypertext into a hyperprogram with specific semantics. Multiple browsing streams can be started under the author's control and then kept in step through the synchronization mechanisms provided by the graph model. Adds a Semantic Web Graph Layer (SWGL) which allows dynamic interpretation of link and node structures according to graph models. Details the SWGL and its architecture, some sample protocol implementations, and the latest extensions to MHTML
- Date
- 1. 8.1996 22:08:06
-
Hammwöhner, R.; Kuhlen, R.: Semantic control of open hypertext systems by typed objects (1994)
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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
-
Hammwöhner, R.; Kuhlen, R.: Semantic control of open hypertext systems by typed objects (1993)
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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 email, text and image hypertexts with access to online data bases 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 objexts to overcome the problems of open hypertext. The advantage of this typing is shown an an e-mail hypertext as a special application of the KHS system. KHS is written in Smalltalk and is being developed an UNIX-machines.
-
Kerckhove, D. de: Medien des Wissens : Wissensherstellung auf Papier, auf dem Bildschirm und Online (2000)
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